diff --git a/org.hl7.fhir.convertors/src/main/java/org/hl7/fhir/convertors/conv40_50/datatypes40_50/Type40_50.java b/org.hl7.fhir.convertors/src/main/java/org/hl7/fhir/convertors/conv40_50/datatypes40_50/Type40_50.java
index ccc8fdcd9..e09e17745 100644
--- a/org.hl7.fhir.convertors/src/main/java/org/hl7/fhir/convertors/conv40_50/datatypes40_50/Type40_50.java
+++ b/org.hl7.fhir.convertors/src/main/java/org/hl7/fhir/convertors/conv40_50/datatypes40_50/Type40_50.java
@@ -57,7 +57,6 @@ import org.hl7.fhir.convertors.conv40_50.datatypes40_50.special40_50.Meta40_50;
 import org.hl7.fhir.convertors.conv40_50.datatypes40_50.special40_50.Narrative40_50;
 import org.hl7.fhir.convertors.conv40_50.datatypes40_50.special40_50.Reference40_50;
 import org.hl7.fhir.convertors.conv40_50.resources40_50.MarketingStatus40_50;
-import org.hl7.fhir.convertors.conv40_50.resources40_50.Population40_50;
 import org.hl7.fhir.convertors.conv40_50.resources40_50.ProdCharacteristic40_50;
 import org.hl7.fhir.convertors.conv40_50.resources40_50.ProductShelfLife40_50;
 import org.hl7.fhir.convertors.conv40_50.resources40_50.SubstanceAmount40_50;
@@ -151,8 +150,6 @@ public class Type40_50 {
       return ParameterDefinition40_50.convertParameterDefinition((org.hl7.fhir.r4.model.ParameterDefinition) src);
     if (src instanceof org.hl7.fhir.r4.model.Period)
       return Period40_50.convertPeriod((org.hl7.fhir.r4.model.Period) src);
-    if (src instanceof org.hl7.fhir.r4.model.Population)
-      return Population40_50.convertPopulation((org.hl7.fhir.r4.model.Population) src);
     if (src instanceof org.hl7.fhir.r4.model.ProdCharacteristic)
       return ProdCharacteristic40_50.convertProdCharacteristic((org.hl7.fhir.r4.model.ProdCharacteristic) src);
     if (src instanceof org.hl7.fhir.r4.model.ProductShelfLife)
@@ -272,8 +269,6 @@ public class Type40_50 {
       return ParameterDefinition40_50.convertParameterDefinition((org.hl7.fhir.r5.model.ParameterDefinition) src);
     if (src instanceof org.hl7.fhir.r5.model.Period)
       return Period40_50.convertPeriod((org.hl7.fhir.r5.model.Period) src);
-    if (src instanceof org.hl7.fhir.r5.model.Population)
-      return Population40_50.convertPopulation((org.hl7.fhir.r5.model.Population) src);
     if (src instanceof org.hl7.fhir.r5.model.ProdCharacteristic)
       return ProdCharacteristic40_50.convertProdCharacteristic((org.hl7.fhir.r5.model.ProdCharacteristic) src);
     if (src instanceof org.hl7.fhir.r5.model.ProductShelfLife)
diff --git a/org.hl7.fhir.convertors/src/main/java/org/hl7/fhir/convertors/conv40_50/resources40_50/Population40_50.java b/org.hl7.fhir.convertors/src/main/java/org/hl7/fhir/convertors/conv40_50/resources40_50/Population40_50.java
deleted file mode 100644
index 41f0971ea..000000000
--- a/org.hl7.fhir.convertors/src/main/java/org/hl7/fhir/convertors/conv40_50/resources40_50/Population40_50.java
+++ /dev/null
@@ -1,32 +0,0 @@
-package org.hl7.fhir.convertors.conv40_50.resources40_50;
-
-import org.hl7.fhir.convertors.context.ConversionContext40_50;
-import org.hl7.fhir.convertors.conv40_50.datatypes40_50.BackboneElement40_50;
-import org.hl7.fhir.convertors.conv40_50.datatypes40_50.general40_50.CodeableConcept40_50;
-import org.hl7.fhir.exceptions.FHIRException;
-
-public class Population40_50 {
-  public static org.hl7.fhir.r5.model.Population convertPopulation(org.hl7.fhir.r4.model.Population src) throws FHIRException {
-    if (src == null) return null;
-    org.hl7.fhir.r5.model.Population tgt = new org.hl7.fhir.r5.model.Population();
-    BackboneElement40_50.copyBackboneElement(src, tgt);
-    if (src.hasAge()) tgt.setAge(ConversionContext40_50.INSTANCE.getVersionConvertor_40_50().convertType(src.getAge()));
-    if (src.hasGender()) tgt.setGender(CodeableConcept40_50.convertCodeableConcept(src.getGender()));
-    if (src.hasRace()) tgt.setRace(CodeableConcept40_50.convertCodeableConcept(src.getRace()));
-    if (src.hasPhysiologicalCondition())
-      tgt.setPhysiologicalCondition(CodeableConcept40_50.convertCodeableConcept(src.getPhysiologicalCondition()));
-    return tgt;
-  }
-
-  public static org.hl7.fhir.r4.model.Population convertPopulation(org.hl7.fhir.r5.model.Population src) throws FHIRException {
-    if (src == null) return null;
-    org.hl7.fhir.r4.model.Population tgt = new org.hl7.fhir.r4.model.Population();
-    BackboneElement40_50.copyBackboneElement(src, tgt);
-    if (src.hasAge()) tgt.setAge(ConversionContext40_50.INSTANCE.getVersionConvertor_40_50().convertType(src.getAge()));
-    if (src.hasGender()) tgt.setGender(CodeableConcept40_50.convertCodeableConcept(src.getGender()));
-    if (src.hasRace()) tgt.setRace(CodeableConcept40_50.convertCodeableConcept(src.getRace()));
-    if (src.hasPhysiologicalCondition())
-      tgt.setPhysiologicalCondition(CodeableConcept40_50.convertCodeableConcept(src.getPhysiologicalCondition()));
-    return tgt;
-  }
-}
diff --git a/org.hl7.fhir.convertors/src/main/java/org/hl7/fhir/convertors/conv43_50/datatypes43_50/Type43_50.java b/org.hl7.fhir.convertors/src/main/java/org/hl7/fhir/convertors/conv43_50/datatypes43_50/Type43_50.java
index a7ccbf0b1..958a2babd 100644
--- a/org.hl7.fhir.convertors/src/main/java/org/hl7/fhir/convertors/conv43_50/datatypes43_50/Type43_50.java
+++ b/org.hl7.fhir.convertors/src/main/java/org/hl7/fhir/convertors/conv43_50/datatypes43_50/Type43_50.java
@@ -57,7 +57,6 @@ import org.hl7.fhir.convertors.conv43_50.datatypes43_50.special43_50.Meta43_50;
 import org.hl7.fhir.convertors.conv43_50.datatypes43_50.special43_50.Narrative43_50;
 import org.hl7.fhir.convertors.conv43_50.datatypes43_50.special43_50.Reference43_50;
 import org.hl7.fhir.convertors.conv43_50.resources43_50.MarketingStatus43_50;
-import org.hl7.fhir.convertors.conv43_50.resources43_50.Population43_50;
 import org.hl7.fhir.convertors.conv43_50.resources43_50.ProdCharacteristic43_50;
 import org.hl7.fhir.convertors.conv43_50.resources43_50.ProductShelfLife43_50;
 import org.hl7.fhir.convertors.conv43_50.resources43_50.SubstanceAmount43_50;
@@ -151,8 +150,6 @@ public class Type43_50 {
       return ParameterDefinition43_50.convertParameterDefinition((org.hl7.fhir.r4b.model.ParameterDefinition) src);
     if (src instanceof org.hl7.fhir.r4b.model.Period)
       return Period43_50.convertPeriod((org.hl7.fhir.r4b.model.Period) src);
-    if (src instanceof org.hl7.fhir.r4b.model.Population)
-      return Population43_50.convertPopulation((org.hl7.fhir.r4b.model.Population) src);
     if (src instanceof org.hl7.fhir.r4b.model.ProdCharacteristic)
       return ProdCharacteristic43_50.convertProdCharacteristic((org.hl7.fhir.r4b.model.ProdCharacteristic) src);
     if (src instanceof org.hl7.fhir.r4b.model.ProductShelfLife)
@@ -270,8 +267,6 @@ public class Type43_50 {
       return ParameterDefinition43_50.convertParameterDefinition((org.hl7.fhir.r5.model.ParameterDefinition) src);
     if (src instanceof org.hl7.fhir.r5.model.Period)
       return Period43_50.convertPeriod((org.hl7.fhir.r5.model.Period) src);
-    if (src instanceof org.hl7.fhir.r5.model.Population)
-      return Population43_50.convertPopulation((org.hl7.fhir.r5.model.Population) src);
     if (src instanceof org.hl7.fhir.r5.model.ProdCharacteristic)
       return ProdCharacteristic43_50.convertProdCharacteristic((org.hl7.fhir.r5.model.ProdCharacteristic) src);
     if (src instanceof org.hl7.fhir.r5.model.ProductShelfLife)
diff --git a/org.hl7.fhir.convertors/src/main/java/org/hl7/fhir/convertors/conv43_50/resources43_50/Population43_50.java b/org.hl7.fhir.convertors/src/main/java/org/hl7/fhir/convertors/conv43_50/resources43_50/Population43_50.java
deleted file mode 100644
index 31b0f7bdd..000000000
--- a/org.hl7.fhir.convertors/src/main/java/org/hl7/fhir/convertors/conv43_50/resources43_50/Population43_50.java
+++ /dev/null
@@ -1,32 +0,0 @@
-package org.hl7.fhir.convertors.conv43_50.resources43_50;
-
-import org.hl7.fhir.convertors.context.ConversionContext43_50;
-import org.hl7.fhir.convertors.conv43_50.datatypes43_50.BackboneElement43_50;
-import org.hl7.fhir.convertors.conv43_50.datatypes43_50.general43_50.CodeableConcept43_50;
-import org.hl7.fhir.exceptions.FHIRException;
-
-public class Population43_50 {
-  public static org.hl7.fhir.r5.model.Population convertPopulation(org.hl7.fhir.r4b.model.Population src) throws FHIRException {
-    if (src == null) return null;
-    org.hl7.fhir.r5.model.Population tgt = new org.hl7.fhir.r5.model.Population();
-    BackboneElement43_50.copyBackboneElement(src, tgt);
-    if (src.hasAge()) tgt.setAge(ConversionContext43_50.INSTANCE.getVersionConvertor_43_50().convertType(src.getAge()));
-    if (src.hasGender()) tgt.setGender(CodeableConcept43_50.convertCodeableConcept(src.getGender()));
-    if (src.hasRace()) tgt.setRace(CodeableConcept43_50.convertCodeableConcept(src.getRace()));
-    if (src.hasPhysiologicalCondition())
-      tgt.setPhysiologicalCondition(CodeableConcept43_50.convertCodeableConcept(src.getPhysiologicalCondition()));
-    return tgt;
-  }
-
-  public static org.hl7.fhir.r4b.model.Population convertPopulation(org.hl7.fhir.r5.model.Population src) throws FHIRException {
-    if (src == null) return null;
-    org.hl7.fhir.r4b.model.Population tgt = new org.hl7.fhir.r4b.model.Population();
-    BackboneElement43_50.copyBackboneElement(src, tgt);
-    if (src.hasAge()) tgt.setAge(ConversionContext43_50.INSTANCE.getVersionConvertor_43_50().convertType(src.getAge()));
-    if (src.hasGender()) tgt.setGender(CodeableConcept43_50.convertCodeableConcept(src.getGender()));
-    if (src.hasRace()) tgt.setRace(CodeableConcept43_50.convertCodeableConcept(src.getRace()));
-    if (src.hasPhysiologicalCondition())
-      tgt.setPhysiologicalCondition(CodeableConcept43_50.convertCodeableConcept(src.getPhysiologicalCondition()));
-    return tgt;
-  }
-}
diff --git a/org.hl7.fhir.r5/src/main/java/org/hl7/fhir/r5/model/Population.java b/org.hl7.fhir.r5/src/main/java/org/hl7/fhir/r5/model/Population.java
deleted file mode 100644
index 3a7d97191..000000000
--- a/org.hl7.fhir.r5/src/main/java/org/hl7/fhir/r5/model/Population.java
+++ /dev/null
@@ -1,385 +0,0 @@
-package org.hl7.fhir.r5.model;
-
-
-/*
-  Copyright (c) 2011+, HL7, Inc.
-  All rights reserved.
-  
-  Redistribution and use in source and binary forms, with or without modification, \
-  are permitted provided that the following conditions are met:
-  
-   * Redistributions of source code must retain the above copyright notice, this \
-     list of conditions and the following disclaimer.
-   * Redistributions in binary form must reproduce the above copyright notice, \
-     this list of conditions and the following disclaimer in the documentation \
-     and/or other materials provided with the distribution.
-   * Neither the name of HL7 nor the names of its contributors may be used to 
-     endorse or promote products derived from this software without specific 
-     prior written permission.
-  
-  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS \"AS IS\" AND \
-  ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED \
-  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. \
-  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, \
-  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT \
-  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR \
-  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, \
-  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) \
-  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE \
-  POSSIBILITY OF SUCH DAMAGE.
-  */
-
-// Generated on Wed, Mar 1, 2023 15:32+1100 for FHIR v5.0.0-draft-final
-
-import java.util.ArrayList;
-import java.util.Date;
-import java.util.List;
-import org.hl7.fhir.r5.model.Enumerations.*;
-import org.hl7.fhir.instance.model.api.IBaseDatatypeElement;
-import org.hl7.fhir.exceptions.FHIRException;
-import org.hl7.fhir.instance.model.api.ICompositeType;
-import ca.uhn.fhir.model.api.annotation.Child;
-import ca.uhn.fhir.model.api.annotation.ChildOrder;
-import ca.uhn.fhir.model.api.annotation.DatatypeDef;
-import ca.uhn.fhir.model.api.annotation.Description;
-import ca.uhn.fhir.model.api.annotation.Block;
-
-/**
- * Population Type: A populatioof people with some set of grouping criteria.
- */
-@DatatypeDef(name="Population")
-public class Population extends BackboneType implements ICompositeType {
-
-    /**
-     * The age of the specific population.
-     */
-    @Child(name = "age", type = {Range.class, CodeableConcept.class}, order=0, min=0, max=1, modifier=false, summary=true)
-    @Description(shortDefinition="The age of the specific population", formalDefinition="The age of the specific population." )
-    protected DataType age;
-
-    /**
-     * The gender of the specific population.
-     */
-    @Child(name = "gender", type = {CodeableConcept.class}, order=1, min=0, max=1, modifier=false, summary=true)
-    @Description(shortDefinition="The gender of the specific population", formalDefinition="The gender of the specific population." )
-    protected CodeableConcept gender;
-
-    /**
-     * Race of the specific population.
-     */
-    @Child(name = "race", type = {CodeableConcept.class}, order=2, min=0, max=1, modifier=false, summary=true)
-    @Description(shortDefinition="Race of the specific population", formalDefinition="Race of the specific population." )
-    protected CodeableConcept race;
-
-    /**
-     * The existing physiological conditions of the specific population to which this applies.
-     */
-    @Child(name = "physiologicalCondition", type = {CodeableConcept.class}, order=3, min=0, max=1, modifier=false, summary=true)
-    @Description(shortDefinition="The existing physiological conditions of the specific population to which this applies", formalDefinition="The existing physiological conditions of the specific population to which this applies." )
-    protected CodeableConcept physiologicalCondition;
-
-    private static final long serialVersionUID = -707090134L;
-
-  /**
-   * Constructor
-   */
-    public Population() {
-      super();
-    }
-
-    /**
-     * @return {@link #age} (The age of the specific population.)
-     */
-    public DataType getAge() { 
-      return this.age;
-    }
-
-    /**
-     * @return {@link #age} (The age of the specific population.)
-     */
-    public Range getAgeRange() throws FHIRException { 
-      if (this.age == null)
-        this.age = new Range();
-      if (!(this.age instanceof Range))
-        throw new FHIRException("Type mismatch: the type Range was expected, but "+this.age.getClass().getName()+" was encountered");
-      return (Range) this.age;
-    }
-
-    public boolean hasAgeRange() { 
-      return this != null && this.age instanceof Range;
-    }
-
-    /**
-     * @return {@link #age} (The age of the specific population.)
-     */
-    public CodeableConcept getAgeCodeableConcept() throws FHIRException { 
-      if (this.age == null)
-        this.age = new CodeableConcept();
-      if (!(this.age instanceof CodeableConcept))
-        throw new FHIRException("Type mismatch: the type CodeableConcept was expected, but "+this.age.getClass().getName()+" was encountered");
-      return (CodeableConcept) this.age;
-    }
-
-    public boolean hasAgeCodeableConcept() { 
-      return this != null && this.age instanceof CodeableConcept;
-    }
-
-    public boolean hasAge() { 
-      return this.age != null && !this.age.isEmpty();
-    }
-
-    /**
-     * @param value {@link #age} (The age of the specific population.)
-     */
-    public Population setAge(DataType value) { 
-      if (value != null && !(value instanceof Range || value instanceof CodeableConcept))
-        throw new FHIRException("Not the right type for Population.age[x]: "+value.fhirType());
-      this.age = value;
-      return this;
-    }
-
-    /**
-     * @return {@link #gender} (The gender of the specific population.)
-     */
-    public CodeableConcept getGender() { 
-      if (this.gender == null)
-        if (Configuration.errorOnAutoCreate())
-          throw new Error("Attempt to auto-create Population.gender");
-        else if (Configuration.doAutoCreate())
-          this.gender = new CodeableConcept(); // cc
-      return this.gender;
-    }
-
-    public boolean hasGender() { 
-      return this.gender != null && !this.gender.isEmpty();
-    }
-
-    /**
-     * @param value {@link #gender} (The gender of the specific population.)
-     */
-    public Population setGender(CodeableConcept value) { 
-      this.gender = value;
-      return this;
-    }
-
-    /**
-     * @return {@link #race} (Race of the specific population.)
-     */
-    public CodeableConcept getRace() { 
-      if (this.race == null)
-        if (Configuration.errorOnAutoCreate())
-          throw new Error("Attempt to auto-create Population.race");
-        else if (Configuration.doAutoCreate())
-          this.race = new CodeableConcept(); // cc
-      return this.race;
-    }
-
-    public boolean hasRace() { 
-      return this.race != null && !this.race.isEmpty();
-    }
-
-    /**
-     * @param value {@link #race} (Race of the specific population.)
-     */
-    public Population setRace(CodeableConcept value) { 
-      this.race = value;
-      return this;
-    }
-
-    /**
-     * @return {@link #physiologicalCondition} (The existing physiological conditions of the specific population to which this applies.)
-     */
-    public CodeableConcept getPhysiologicalCondition() { 
-      if (this.physiologicalCondition == null)
-        if (Configuration.errorOnAutoCreate())
-          throw new Error("Attempt to auto-create Population.physiologicalCondition");
-        else if (Configuration.doAutoCreate())
-          this.physiologicalCondition = new CodeableConcept(); // cc
-      return this.physiologicalCondition;
-    }
-
-    public boolean hasPhysiologicalCondition() { 
-      return this.physiologicalCondition != null && !this.physiologicalCondition.isEmpty();
-    }
-
-    /**
-     * @param value {@link #physiologicalCondition} (The existing physiological conditions of the specific population to which this applies.)
-     */
-    public Population setPhysiologicalCondition(CodeableConcept value) { 
-      this.physiologicalCondition = value;
-      return this;
-    }
-
-      protected void listChildren(List<Property> children) {
-        super.listChildren(children);
-        children.add(new Property("age[x]", "Range|CodeableConcept", "The age of the specific population.", 0, 1, age));
-        children.add(new Property("gender", "CodeableConcept", "The gender of the specific population.", 0, 1, gender));
-        children.add(new Property("race", "CodeableConcept", "Race of the specific population.", 0, 1, race));
-        children.add(new Property("physiologicalCondition", "CodeableConcept", "The existing physiological conditions of the specific population to which this applies.", 0, 1, physiologicalCondition));
-      }
-
-      @Override
-      public Property getNamedProperty(int _hash, String _name, boolean _checkValid) throws FHIRException {
-        switch (_hash) {
-        case -1419716831: /*age[x]*/  return new Property("age[x]", "Range|CodeableConcept", "The age of the specific population.", 0, 1, age);
-        case 96511: /*age*/  return new Property("age[x]", "Range|CodeableConcept", "The age of the specific population.", 0, 1, age);
-        case 1442748286: /*ageRange*/  return new Property("age[x]", "Range", "The age of the specific population.", 0, 1, age);
-        case -1452658526: /*ageCodeableConcept*/  return new Property("age[x]", "CodeableConcept", "The age of the specific population.", 0, 1, age);
-        case -1249512767: /*gender*/  return new Property("gender", "CodeableConcept", "The gender of the specific population.", 0, 1, gender);
-        case 3492561: /*race*/  return new Property("race", "CodeableConcept", "Race of the specific population.", 0, 1, race);
-        case -62715190: /*physiologicalCondition*/  return new Property("physiologicalCondition", "CodeableConcept", "The existing physiological conditions of the specific population to which this applies.", 0, 1, physiologicalCondition);
-        default: return super.getNamedProperty(_hash, _name, _checkValid);
-        }
-
-      }
-
-      @Override
-      public Base[] getProperty(int hash, String name, boolean checkValid) throws FHIRException {
-        switch (hash) {
-        case 96511: /*age*/ return this.age == null ? new Base[0] : new Base[] {this.age}; // DataType
-        case -1249512767: /*gender*/ return this.gender == null ? new Base[0] : new Base[] {this.gender}; // CodeableConcept
-        case 3492561: /*race*/ return this.race == null ? new Base[0] : new Base[] {this.race}; // CodeableConcept
-        case -62715190: /*physiologicalCondition*/ return this.physiologicalCondition == null ? new Base[0] : new Base[] {this.physiologicalCondition}; // CodeableConcept
-        default: return super.getProperty(hash, name, checkValid);
-        }
-
-      }
-
-      @Override
-      public Base setProperty(int hash, String name, Base value) throws FHIRException {
-        switch (hash) {
-        case 96511: // age
-          this.age = TypeConvertor.castToType(value); // DataType
-          return value;
-        case -1249512767: // gender
-          this.gender = TypeConvertor.castToCodeableConcept(value); // CodeableConcept
-          return value;
-        case 3492561: // race
-          this.race = TypeConvertor.castToCodeableConcept(value); // CodeableConcept
-          return value;
-        case -62715190: // physiologicalCondition
-          this.physiologicalCondition = TypeConvertor.castToCodeableConcept(value); // CodeableConcept
-          return value;
-        default: return super.setProperty(hash, name, value);
-        }
-
-      }
-
-      @Override
-      public Base setProperty(String name, Base value) throws FHIRException {
-        if (name.equals("age[x]")) {
-          this.age = TypeConvertor.castToType(value); // DataType
-        } else if (name.equals("gender")) {
-          this.gender = TypeConvertor.castToCodeableConcept(value); // CodeableConcept
-        } else if (name.equals("race")) {
-          this.race = TypeConvertor.castToCodeableConcept(value); // CodeableConcept
-        } else if (name.equals("physiologicalCondition")) {
-          this.physiologicalCondition = TypeConvertor.castToCodeableConcept(value); // CodeableConcept
-        } else
-          return super.setProperty(name, value);
-        return value;
-      }
-
-      @Override
-      public Base makeProperty(int hash, String name) throws FHIRException {
-        switch (hash) {
-        case -1419716831:  return getAge();
-        case 96511:  return getAge();
-        case -1249512767:  return getGender();
-        case 3492561:  return getRace();
-        case -62715190:  return getPhysiologicalCondition();
-        default: return super.makeProperty(hash, name);
-        }
-
-      }
-
-      @Override
-      public String[] getTypesForProperty(int hash, String name) throws FHIRException {
-        switch (hash) {
-        case 96511: /*age*/ return new String[] {"Range", "CodeableConcept"};
-        case -1249512767: /*gender*/ return new String[] {"CodeableConcept"};
-        case 3492561: /*race*/ return new String[] {"CodeableConcept"};
-        case -62715190: /*physiologicalCondition*/ return new String[] {"CodeableConcept"};
-        default: return super.getTypesForProperty(hash, name);
-        }
-
-      }
-
-      @Override
-      public Base addChild(String name) throws FHIRException {
-        if (name.equals("ageRange")) {
-          this.age = new Range();
-          return this.age;
-        }
-        else if (name.equals("ageCodeableConcept")) {
-          this.age = new CodeableConcept();
-          return this.age;
-        }
-        else if (name.equals("gender")) {
-          this.gender = new CodeableConcept();
-          return this.gender;
-        }
-        else if (name.equals("race")) {
-          this.race = new CodeableConcept();
-          return this.race;
-        }
-        else if (name.equals("physiologicalCondition")) {
-          this.physiologicalCondition = new CodeableConcept();
-          return this.physiologicalCondition;
-        }
-        else
-          return super.addChild(name);
-      }
-
-  public String fhirType() {
-    return "Population";
-
-  }
-
-      public Population copy() {
-        Population dst = new Population();
-        copyValues(dst);
-        return dst;
-      }
-
-      public void copyValues(Population dst) {
-        super.copyValues(dst);
-        dst.age = age == null ? null : age.copy();
-        dst.gender = gender == null ? null : gender.copy();
-        dst.race = race == null ? null : race.copy();
-        dst.physiologicalCondition = physiologicalCondition == null ? null : physiologicalCondition.copy();
-      }
-
-      protected Population typedCopy() {
-        return copy();
-      }
-
-      @Override
-      public boolean equalsDeep(Base other_) {
-        if (!super.equalsDeep(other_))
-          return false;
-        if (!(other_ instanceof Population))
-          return false;
-        Population o = (Population) other_;
-        return compareDeep(age, o.age, true) && compareDeep(gender, o.gender, true) && compareDeep(race, o.race, true)
-           && compareDeep(physiologicalCondition, o.physiologicalCondition, true);
-      }
-
-      @Override
-      public boolean equalsShallow(Base other_) {
-        if (!super.equalsShallow(other_))
-          return false;
-        if (!(other_ instanceof Population))
-          return false;
-        Population o = (Population) other_;
-        return true;
-      }
-
-      public boolean isEmpty() {
-        return super.isEmpty() && ca.uhn.fhir.util.ElementUtil.isEmpty(age, gender, race, physiologicalCondition
-          );
-      }
-
-
-}
-
diff --git a/org.hl7.fhir.r5/src/main/java/org/hl7/fhir/r5/model/TypeConvertor.java b/org.hl7.fhir.r5/src/main/java/org/hl7/fhir/r5/model/TypeConvertor.java
index 7e989a43f..3aa5fcfd1 100644
--- a/org.hl7.fhir.r5/src/main/java/org/hl7/fhir/r5/model/TypeConvertor.java
+++ b/org.hl7.fhir.r5/src/main/java/org/hl7/fhir/r5/model/TypeConvertor.java
@@ -339,18 +339,6 @@ public class TypeConvertor {
       throw new FHIRException("Unable to convert a "+b.fhirType()+"("+b.getClass().getName()+") to a CodeableConcept");
   }
   
-  public static Population castToPopulation(Base b) throws FHIRException {
-    if (b == null) {
-      return null;
-    }
-
-    if (b instanceof Population)
-      return (Population) b;
-    else
-      throw new FHIRException("Unable to convert a "+b.fhirType()+"("+b.getClass().getName()+") to a Population");
-  }
-  
-  
   public static Coding castToCoding(Base b) throws FHIRException {
     if (b == null) {
       return null;
diff --git a/org.hl7.fhir.r5/src/main/java/org/hl7/fhir/r5/test/utils/TestingUtilities.java b/org.hl7.fhir.r5/src/main/java/org/hl7/fhir/r5/test/utils/TestingUtilities.java
index a59e4100d..4e199a2a0 100644
--- a/org.hl7.fhir.r5/src/main/java/org/hl7/fhir/r5/test/utils/TestingUtilities.java
+++ b/org.hl7.fhir.r5/src/main/java/org/hl7/fhir/r5/test/utils/TestingUtilities.java
@@ -1,79 +1,43 @@
 package org.hl7.fhir.r5.test.utils;
 
 import java.io.File;
-import java.io.FileInputStream;
-import java.io.FileNotFoundException;
 import java.io.IOException;
 import java.io.InputStream;
-import java.util.ArrayList;
 import java.util.HashMap;
-import java.util.List;
 import java.util.Map;
 
-import javax.xml.parsers.DocumentBuilder;
-import javax.xml.parsers.DocumentBuilderFactory;
-
-import org.apache.commons.codec.binary.Base64;
 import org.fhir.ucum.UcumEssenceService;
 import org.hl7.fhir.r5.context.IWorkerContext;
 import org.hl7.fhir.r5.context.SimpleWorkerContext;
 import org.hl7.fhir.r5.context.TerminologyCache;
 import org.hl7.fhir.r5.model.Parameters;
 import org.hl7.fhir.r5.utils.R5Hacker;
-import org.hl7.fhir.utilities.CSFile;
-import org.hl7.fhir.utilities.TextFile;
-import org.hl7.fhir.utilities.ToolGlobalSettings;
 import org.hl7.fhir.utilities.Utilities;
 import org.hl7.fhir.utilities.VersionUtilities;
+import org.hl7.fhir.utilities.npm.BasePackageCacheManager.InputStreamWithSrc;
 import org.hl7.fhir.utilities.npm.FilesystemPackageCacheManager;
+import org.hl7.fhir.utilities.npm.FilesystemPackageCacheManager.IPackageProvider;
 import org.hl7.fhir.utilities.npm.NpmPackage;
 import org.hl7.fhir.utilities.npm.ToolsVersion;
 import org.hl7.fhir.utilities.tests.BaseTestingUtilities;
 import org.hl7.fhir.utilities.tests.TestConfig;
-import org.w3c.dom.Document;
-import org.w3c.dom.Element;
-import org.w3c.dom.NamedNodeMap;
-import org.w3c.dom.Node;
-
-/*
-  Copyright (c) 2011+, HL7, Inc.
-  All rights reserved.
-  
-  Redistribution and use in source and binary forms, with or without modification, 
-  are permitted provided that the following conditions are met:
-    
-   * Redistributions of source code must retain the above copyright notice, this 
-     list of conditions and the following disclaimer.
-   * Redistributions in binary form must reproduce the above copyright notice, 
-     this list of conditions and the following disclaimer in the documentation 
-     and/or other materials provided with the distribution.
-   * Neither the name of HL7 nor the names of its contributors may be used to 
-     endorse or promote products derived from this software without specific 
-     prior written permission.
-  
-  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND 
-  ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 
-  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 
-  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, 
-  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 
-  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 
-  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 
-  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 
-  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 
-  POSSIBILITY OF SUCH DAMAGE.
-  
- */
-
-
-import com.google.gson.JsonArray;
-import com.google.gson.JsonElement;
-import com.google.gson.JsonNull;
-import com.google.gson.JsonObject;
-import com.google.gson.JsonPrimitive;
-import com.google.gson.JsonSyntaxException;
 
 public class TestingUtilities extends BaseTestingUtilities {
 
+  public static class PackageProvider implements IPackageProvider {
+
+    @Override
+    public boolean handlesPackage(String id, String version) {
+      return id.equals("hl7.fhir.r5.core");
+    }
+
+    @Override
+    public InputStreamWithSrc provide(String id, String version) throws IOException {
+      return new InputStreamWithSrc(TestingUtilities.loadR5CorePackageSource(), "Test Case Repository", "5.0.0");
+    }
+
+  }
+
   static public Map<String, IWorkerContext> fcontexts;
 
   final static public String DEFAULT_CONTEXT_VERSION = "5.0.0";
@@ -141,8 +105,12 @@ public class TestingUtilities extends BaseTestingUtilities {
     }
   }
 
-  private static NpmPackage loadR5CorePackage() throws IOException {
-    return NpmPackage.fromPackage(TestingUtilities.loadTestResourceStream("r5", "packages", "hl7.fhir.r5.core.tgz"));
+  public static NpmPackage loadR5CorePackage() throws IOException {
+    return NpmPackage.fromPackage(loadR5CorePackageSource());
+  }
+
+  private static InputStream loadR5CorePackageSource() throws IOException {
+    return TestingUtilities.loadTestResourceStream("r5", "packages", "hl7.fhir.r5.core.tgz");
   }
 
   public static String getTerminologyCacheDirectory() {
@@ -203,5 +171,9 @@ public class TestingUtilities extends BaseTestingUtilities {
     throw new Error("FHIR US directory not configured");
   }
 
+  public static void injectCorePackageLoader() {
+    FilesystemPackageCacheManager.setPackageProvider(new TestingUtilities.PackageProvider());    
+  }
+
 
 }
\ No newline at end of file
diff --git a/org.hl7.fhir.utilities/src/main/java/org/hl7/fhir/utilities/npm/BasePackageCacheManager.java b/org.hl7.fhir.utilities/src/main/java/org/hl7/fhir/utilities/npm/BasePackageCacheManager.java
index e54121b92..e807b0bb2 100644
--- a/org.hl7.fhir.utilities/src/main/java/org/hl7/fhir/utilities/npm/BasePackageCacheManager.java
+++ b/org.hl7.fhir.utilities/src/main/java/org/hl7/fhir/utilities/npm/BasePackageCacheManager.java
@@ -165,7 +165,7 @@ public abstract class BasePackageCacheManager implements IPackageCacheManager {
     }
   }
 
-  public class InputStreamWithSrc {
+  public static class InputStreamWithSrc {
 
     public InputStream stream;
     public String url;
diff --git a/org.hl7.fhir.utilities/src/main/java/org/hl7/fhir/utilities/npm/FilesystemPackageCacheManager.java b/org.hl7.fhir.utilities/src/main/java/org/hl7/fhir/utilities/npm/FilesystemPackageCacheManager.java
index 17077af78..2dc21c3cb 100644
--- a/org.hl7.fhir.utilities/src/main/java/org/hl7/fhir/utilities/npm/FilesystemPackageCacheManager.java
+++ b/org.hl7.fhir.utilities/src/main/java/org/hl7/fhir/utilities/npm/FilesystemPackageCacheManager.java
@@ -36,6 +36,7 @@ import org.hl7.fhir.utilities.json.model.JsonArray;
 import org.hl7.fhir.utilities.json.model.JsonElement;
 import org.hl7.fhir.utilities.json.model.JsonObject;
 import org.hl7.fhir.utilities.json.parser.JsonParser;
+import org.hl7.fhir.utilities.npm.FilesystemPackageCacheManager.IPackageProvider;
 import org.hl7.fhir.utilities.npm.NpmPackage.NpmPackageFolder;
 import org.hl7.fhir.utilities.npm.PackageList.PackageListEntry;
 import org.slf4j.Logger;
@@ -87,6 +88,14 @@ import org.slf4j.LoggerFactory;
 public class FilesystemPackageCacheManager extends BasePackageCacheManager implements IPackageCacheManager {
 
 
+  // When running in testing mode, some packages are provided from the test case repository rather than by the normal means
+  // the PackageProvider is responsible for this. if no package provider is defined, or it declines to handle the package, 
+  // then the normal means will be used
+  public interface IPackageProvider {
+    boolean handlesPackage(String id, String version);
+    InputStreamWithSrc provide(String id, String version) throws IOException;
+  }
+  private static IPackageProvider packageProvider;
 
   //  private static final String SECONDARY_SERVER = "http://local.fhir.org:8080/packages";
   public static final String PACKAGE_REGEX = "^[a-zA-Z][A-Za-z0-9\\_\\-]*(\\.[A-Za-z0-9\\_\\-]+)+$";
@@ -531,7 +540,9 @@ public class FilesystemPackageCacheManager extends BasePackageCacheManager imple
 
     // nup, don't have it locally (or it's expired)
     FilesystemPackageCacheManager.InputStreamWithSrc source;
-    if ("current".equals(version) || (version!= null && version.startsWith("current$"))) {
+    if (packageProvider != null && packageProvider.handlesPackage(id, version)) {
+      source = packageProvider.provide(id, version);
+    } else if ("current".equals(version) || (version!= null && version.startsWith("current$"))) {
       // special case - fetch from ci-build server
       source = loadFromCIBuild(id, version.startsWith("current$") ? version.substring(8) : null);
     } else {
@@ -981,5 +992,13 @@ public class FilesystemPackageCacheManager extends BasePackageCacheManager imple
     this.suppressErrors = suppressErrors;
   }
 
+  public static IPackageProvider getPackageProvider() {
+    return packageProvider;
+  }
+
+  public static void setPackageProvider(IPackageProvider packageProvider) {
+    FilesystemPackageCacheManager.packageProvider = packageProvider;
+  }
+
   
 }
diff --git a/org.hl7.fhir.validation/src/test/java/org/hl7/fhir/comparison/tests/ComparisonTests.java b/org.hl7.fhir.validation/src/test/java/org/hl7/fhir/comparison/tests/ComparisonTests.java
index 808b105bd..542f90863 100644
--- a/org.hl7.fhir.validation/src/test/java/org/hl7/fhir/comparison/tests/ComparisonTests.java
+++ b/org.hl7.fhir.validation/src/test/java/org/hl7/fhir/comparison/tests/ComparisonTests.java
@@ -101,6 +101,7 @@ public class ComparisonTests {
   @ParameterizedTest(name = "{index}: id {0}")
   @MethodSource("data")
   public void test(String name, JsonObject content) throws Exception {
+    TestingUtilities.injectCorePackageLoader();
     this.content = content;
 
     if (content.has("use-test") && !content.get("use-test").getAsBoolean())
diff --git a/org.hl7.fhir.validation/src/test/java/org/hl7/fhir/validation/ResourceValidationTests.java b/org.hl7.fhir.validation/src/test/java/org/hl7/fhir/validation/ResourceValidationTests.java
index 5d662a3ae..bc53dd012 100644
--- a/org.hl7.fhir.validation/src/test/java/org/hl7/fhir/validation/ResourceValidationTests.java
+++ b/org.hl7.fhir.validation/src/test/java/org/hl7/fhir/validation/ResourceValidationTests.java
@@ -43,6 +43,7 @@ public class ResourceValidationTests {
 
 
   private void runTest(String filename) throws IOException, FileNotFoundException, Exception {
+    TestingUtilities.injectCorePackageLoader();
     if (val == null) {
       ctxt = TestingUtilities.getSharedWorkerContext();
       engine = TestUtilities.getValidationEngine("hl7.fhir.r5.core#5.0.0", ValidationEngineTests.DEF_TX, null, FhirPublication.R5, true, "5.0.0");
diff --git a/org.hl7.fhir.validation/src/test/java/org/hl7/fhir/validation/cli/services/ValidationServiceTest.java b/org.hl7.fhir.validation/src/test/java/org/hl7/fhir/validation/cli/services/ValidationServiceTest.java
index 0b6ddfdb2..279e37fbe 100644
--- a/org.hl7.fhir.validation/src/test/java/org/hl7/fhir/validation/cli/services/ValidationServiceTest.java
+++ b/org.hl7.fhir.validation/src/test/java/org/hl7/fhir/validation/cli/services/ValidationServiceTest.java
@@ -3,6 +3,8 @@ package org.hl7.fhir.validation.cli.services;
 import org.apache.commons.io.IOUtils;
 import org.hl7.fhir.r5.elementmodel.Manager;
 import org.hl7.fhir.r5.model.StructureDefinition;
+import org.hl7.fhir.r5.test.utils.TestingUtilities;
+import org.hl7.fhir.utilities.npm.FilesystemPackageCacheManager;
 import org.hl7.fhir.validation.ValidationEngine;
 import org.hl7.fhir.validation.cli.model.CliContext;
 import org.hl7.fhir.validation.cli.model.FileInfo;
@@ -39,6 +41,7 @@ class ValidationServiceTest {
 
   @Test
   void validateSources() throws Exception {
+    TestingUtilities.injectCorePackageLoader();
     SessionCache sessionCache = Mockito.spy(new SessionCache());
     ValidationService myService = new ValidationService(sessionCache);
 
diff --git a/org.hl7.fhir.validation/src/test/java/org/hl7/fhir/validation/tests/TransformationTests.java b/org.hl7.fhir.validation/src/test/java/org/hl7/fhir/validation/tests/TransformationTests.java
index 9fcd45a25..8520cc8b0 100644
--- a/org.hl7.fhir.validation/src/test/java/org/hl7/fhir/validation/tests/TransformationTests.java
+++ b/org.hl7.fhir.validation/src/test/java/org/hl7/fhir/validation/tests/TransformationTests.java
@@ -2,7 +2,7 @@ package org.hl7.fhir.validation.tests;
 
 import java.io.File;
 
-import org.hl7.fhir.r4.test.utils.TestingUtilities;
+import org.hl7.fhir.r5.test.utils.TestingUtilities;
 import org.hl7.fhir.utilities.Utilities;
 import org.hl7.fhir.validation.ValidatorCli;
 import org.junit.jupiter.api.Disabled;
@@ -13,6 +13,8 @@ public class TransformationTests {
 
   @Test
   public void testCCDA() throws Exception {
+    TestingUtilities.injectCorePackageLoader();
+
     String mappings = Utilities.path(TestingUtilities.home(), "tests", "transform-examples", "ccda");
     String input = Utilities.path(TestingUtilities.home(), "tests", "transform-examples", "ccda.xml");
     String output = Utilities.path("[tmp]", "cda-bundle.txt");
diff --git a/org.hl7.fhir.validation/src/test/java/org/hl7/fhir/validation/tests/ValidationTests.java b/org.hl7.fhir.validation/src/test/java/org/hl7/fhir/validation/tests/ValidationTests.java
index fc727dede..8a970b599 100644
--- a/org.hl7.fhir.validation/src/test/java/org/hl7/fhir/validation/tests/ValidationTests.java
+++ b/org.hl7.fhir.validation/src/test/java/org/hl7/fhir/validation/tests/ValidationTests.java
@@ -137,6 +137,8 @@ public class ValidationTests implements IEvaluationContext, IValidatorResourceFe
   @SuppressWarnings("deprecation")
   @Test
   public void test() throws Exception {
+    TestingUtilities.injectCorePackageLoader();
+
     CacheVerificationLogger logger = new CacheVerificationLogger();
     long setup = System.nanoTime();
 
diff --git a/org.hl7.fhir.validation/src/test/java/org/hl7/fhir/validation/tests/utilities/TestUtilities.java b/org.hl7.fhir.validation/src/test/java/org/hl7/fhir/validation/tests/utilities/TestUtilities.java
index abad2546d..e1e398929 100644
--- a/org.hl7.fhir.validation/src/test/java/org/hl7/fhir/validation/tests/utilities/TestUtilities.java
+++ b/org.hl7.fhir.validation/src/test/java/org/hl7/fhir/validation/tests/utilities/TestUtilities.java
@@ -1,6 +1,7 @@
 package org.hl7.fhir.validation.tests.utilities;
 
 import org.hl7.fhir.r5.context.TerminologyCache;
+import org.hl7.fhir.r5.test.utils.TestingUtilities;
 import org.hl7.fhir.utilities.FhirPublication;
 import org.hl7.fhir.utilities.tests.TestConfig;
 import org.hl7.fhir.utilities.tests.TestConstants;
@@ -13,6 +14,7 @@ public class TestUtilities {
   public static boolean silent = false;
 
   public static ValidationEngine getValidationEngine(java.lang.String src, java.lang.String txServer, String txLog, FhirPublication version, boolean canRunWithoutTerminologyServer, java.lang.String vString) throws Exception {
+    TestingUtilities.injectCorePackageLoader();
 
    final ValidationEngine validationEngine = new ValidationEngine.ValidationEngineBuilder()
       .withCanRunWithoutTerminologyServer(canRunWithoutTerminologyServer)
@@ -31,6 +33,7 @@ public class TestUtilities {
   }
 
   public static ValidationEngine getValidationEngine(java.lang.String src, java.lang.String txServer, FhirPublication version, java.lang.String vString) throws Exception {
+    TestingUtilities.injectCorePackageLoader();
     final ValidationEngine validationEngine = new ValidationEngine.ValidationEngineBuilder()
       .withVersion(vString)
       .withUserAgent(TestConstants.USER_AGENT)
diff --git a/org.hl7.fhir.validation/src/test/resources/txCache/org.hl7.fhir.validation/5.0.0/all-systems.cache b/org.hl7.fhir.validation/src/test/resources/txCache/org.hl7.fhir.validation/5.0.0/all-systems.cache
index e0e6911b4..6cb82b324 100644
--- a/org.hl7.fhir.validation/src/test/resources/txCache/org.hl7.fhir.validation/5.0.0/all-systems.cache
+++ b/org.hl7.fhir.validation/src/test/resources/txCache/org.hl7.fhir.validation/5.0.0/all-systems.cache
@@ -245,3 +245,79 @@ v: {
   "system" : "urn:ietf:bcp:47"
 }
 -------------------------------------------------------------------------------------
+{"code" : {
+  "code" : "fr-CA"
+}, "url": "http://hl7.org/fhir/ValueSet/languages", "version": "5.0.0", "lang":"null", "useServer":"true", "useClient":"true", "guessSystem":"true", "valueSetMode":"ALL_CHECKS", "versionFlexible":"true"}####
+v: {
+  "display" : "French (Canada)",
+  "code" : "fr-CA",
+  "system" : "urn:ietf:bcp:47"
+}
+-------------------------------------------------------------------------------------
+{"code" : {
+  "system" : "http://snomed.info/sct",
+  "code" : "439401001",
+  "display" : "Diagnosis"
+}, "url": "http://hl7.org/fhir/ValueSet/condition-category", "version": "5.0.0", "lang":"null", "useServer":"true", "useClient":"true", "guessSystem":"false", "valueSetMode":"NO_MEMBERSHIP_CHECK", "versionFlexible":"true"}####
+v: {
+  "display" : "Diagnosis (observable entity)",
+  "code" : "439401001",
+  "system" : "http://snomed.info/sct"
+}
+-------------------------------------------------------------------------------------
+{"code" : {
+  "code" : "d"
+}, "url": "http://hl7.org/fhir/ValueSet/units-of-time", "version": "5.0.0", "lang":"null", "useServer":"true", "useClient":"true", "guessSystem":"true", "valueSetMode":"ALL_CHECKS", "versionFlexible":"true"}####
+v: {
+  "display" : "天",
+  "code" : "d",
+  "system" : "http://unitsofmeasure.org"
+}
+-------------------------------------------------------------------------------------
+{"code" : {
+  "code" : "text/plain"
+}, "url": "http://hl7.org/fhir/ValueSet/mimetypes", "version": "5.0.0", "lang":"null", "useServer":"true", "useClient":"true", "guessSystem":"true", "valueSetMode":"ALL_CHECKS", "versionFlexible":"false"}####
+v: {
+  "display" : "text/plain",
+  "code" : "text/plain",
+  "system" : "urn:ietf:bcp:13"
+}
+-------------------------------------------------------------------------------------
+{"code" : {
+  "system" : "http://snomed.info/sct",
+  "code" : "271649006",
+  "display" : "Systolic blood pressure"
+}, "url": "http://hl7.org/fhir/ValueSet/observation-vitalsignresult", "version": "5.0.0", "lang":"null", "useServer":"true", "useClient":"true", "guessSystem":"false", "valueSetMode":"NO_MEMBERSHIP_CHECK", "versionFlexible":"false"}####
+v: {
+  "display" : "Systolic blood pressure",
+  "code" : "271649006",
+  "system" : "http://snomed.info/sct"
+}
+-------------------------------------------------------------------------------------
+{"code" : {
+  "code" : "nl-NL"
+}, "url": "http://hl7.org/fhir/ValueSet/all-languages", "version": "5.0.0", "lang":"nl-NL", "useServer":"true", "useClient":"true", "guessSystem":"true", "valueSetMode":"ALL_CHECKS", "versionFlexible":"false"}####
+v: {
+  "display" : "Dutch (Region=Netherlands)",
+  "code" : "nl-NL",
+  "system" : "urn:ietf:bcp:47"
+}
+-------------------------------------------------------------------------------------
+{"code" : {
+  "code" : "en-AU"
+}, "url": "http://hl7.org/fhir/ValueSet/all-languages", "version": "5.0.0", "lang":"en-AU", "useServer":"true", "useClient":"true", "guessSystem":"true", "valueSetMode":"ALL_CHECKS", "versionFlexible":"false"}####
+v: {
+  "display" : "English (Region=Australia)",
+  "code" : "en-AU",
+  "system" : "urn:ietf:bcp:47"
+}
+-------------------------------------------------------------------------------------
+{"code" : {
+  "code" : "en"
+}, "url": "http://hl7.org/fhir/ValueSet/languages", "version": "5.0.0", "lang":"null", "useServer":"true", "useClient":"true", "guessSystem":"true", "valueSetMode":"ALL_CHECKS", "versionFlexible":"false"}####
+v: {
+  "display" : "English",
+  "code" : "en",
+  "system" : "urn:ietf:bcp:47"
+}
+-------------------------------------------------------------------------------------
diff --git a/org.hl7.fhir.validation/src/test/resources/txCache/org.hl7.fhir.validation/5.0.0/lang.cache b/org.hl7.fhir.validation/src/test/resources/txCache/org.hl7.fhir.validation/5.0.0/lang.cache
index 58f91a64f..52e255a3f 100644
--- a/org.hl7.fhir.validation/src/test/resources/txCache/org.hl7.fhir.validation/5.0.0/lang.cache
+++ b/org.hl7.fhir.validation/src/test/resources/txCache/org.hl7.fhir.validation/5.0.0/lang.cache
@@ -89,3 +89,23 @@ v: {
   "system" : "urn:ietf:bcp:47"
 }
 -------------------------------------------------------------------------------------
+{"code" : {
+  "system" : "urn:ietf:bcp:47",
+  "code" : "fr-CA"
+}, "url": "http://hl7.org/fhir/ValueSet/all-languages--0", "version": "5.0.0", "lang":"null", "useServer":"true", "useClient":"false", "guessSystem":"false", "valueSetMode":"ALL_CHECKS", "versionFlexible":"true"}####
+v: {
+  "display" : "French (Region=Canada)",
+  "code" : "fr-CA",
+  "system" : "urn:ietf:bcp:47"
+}
+-------------------------------------------------------------------------------------
+{"code" : {
+  "system" : "urn:ietf:bcp:47",
+  "code" : "fr-CA"
+}, "url": "http://hl7.org/fhir/ValueSet/all-languages", "version": "5.0.0", "lang":"null", "useServer":"true", "useClient":"true", "guessSystem":"false", "valueSetMode":"NO_MEMBERSHIP_CHECK", "versionFlexible":"true"}####
+v: {
+  "display" : "French (Region=Canada)",
+  "code" : "fr-CA",
+  "system" : "urn:ietf:bcp:47"
+}
+-------------------------------------------------------------------------------------
diff --git a/org.hl7.fhir.validation/src/test/resources/txCache/org.hl7.fhir.validation/5.0.0/loinc.cache b/org.hl7.fhir.validation/src/test/resources/txCache/org.hl7.fhir.validation/5.0.0/loinc.cache
index 9d0a337ef..d81882704 100644
--- a/org.hl7.fhir.validation/src/test/resources/txCache/org.hl7.fhir.validation/5.0.0/loinc.cache
+++ b/org.hl7.fhir.validation/src/test/resources/txCache/org.hl7.fhir.validation/5.0.0/loinc.cache
@@ -608,3 +608,110 @@ v: {
   "system" : "http://loinc.org"
 }
 -------------------------------------------------------------------------------------
+{"code" : {
+  "system" : "http://loinc.org",
+  "code" : "85354-9"
+}, "url": "http://hl7.org/fhir/ValueSet/observation-vitalsignresult--0", "version": "5.0.0", "lang":"null", "useServer":"true", "useClient":"false", "guessSystem":"false", "valueSetMode":"ALL_CHECKS", "versionFlexible":"false"}####
+v: {
+  "display" : "Blood pressure panel with all children optional",
+  "code" : "85354-9",
+  "system" : "http://loinc.org"
+}
+-------------------------------------------------------------------------------------
+{"code" : {
+  "system" : "http://loinc.org",
+  "code" : "85354-9",
+  "display" : "Blood pressure panel with all children optional"
+}, "url": "http://hl7.org/fhir/ValueSet/observation-vitalsignresult", "version": "5.0.0", "lang":"null", "useServer":"true", "useClient":"true", "guessSystem":"false", "valueSetMode":"NO_MEMBERSHIP_CHECK", "versionFlexible":"false"}####
+v: {
+  "display" : "Blood pressure panel with all children optional",
+  "code" : "85354-9",
+  "system" : "http://loinc.org"
+}
+-------------------------------------------------------------------------------------
+{"code" : {
+  "system" : "http://loinc.org",
+  "code" : "8480-6"
+}, "url": "http://hl7.org/fhir/ValueSet/observation-vitalsignresult--0", "version": "5.0.0", "lang":"null", "useServer":"true", "useClient":"false", "guessSystem":"false", "valueSetMode":"ALL_CHECKS", "versionFlexible":"false"}####
+v: {
+  "display" : "Systolic blood pressure",
+  "code" : "8480-6",
+  "system" : "http://loinc.org"
+}
+-------------------------------------------------------------------------------------
+{"code" : {
+  "system" : "http://loinc.org",
+  "code" : "8480-6",
+  "display" : "Systolic blood pressure"
+}, "url": "http://hl7.org/fhir/ValueSet/observation-vitalsignresult", "version": "5.0.0", "lang":"null", "useServer":"true", "useClient":"true", "guessSystem":"false", "valueSetMode":"NO_MEMBERSHIP_CHECK", "versionFlexible":"false"}####
+v: {
+  "display" : "Systolic blood pressure",
+  "code" : "8480-6",
+  "system" : "http://loinc.org"
+}
+-------------------------------------------------------------------------------------
+{"code" : {
+  "system" : "http://loinc.org",
+  "code" : "8462-4"
+}, "url": "http://hl7.org/fhir/ValueSet/observation-vitalsignresult--0", "version": "5.0.0", "lang":"null", "useServer":"true", "useClient":"false", "guessSystem":"false", "valueSetMode":"ALL_CHECKS", "versionFlexible":"false"}####
+v: {
+  "display" : "Diastolic blood pressure",
+  "code" : "8462-4",
+  "system" : "http://loinc.org"
+}
+-------------------------------------------------------------------------------------
+{"code" : {
+  "system" : "http://loinc.org",
+  "code" : "8462-4",
+  "display" : "Diastolic blood pressure"
+}, "url": "http://hl7.org/fhir/ValueSet/observation-vitalsignresult", "version": "5.0.0", "lang":"null", "useServer":"true", "useClient":"true", "guessSystem":"false", "valueSetMode":"NO_MEMBERSHIP_CHECK", "versionFlexible":"false"}####
+v: {
+  "display" : "Diastolic blood pressure",
+  "code" : "8462-4",
+  "system" : "http://loinc.org"
+}
+-------------------------------------------------------------------------------------
+{"code" : {
+  "system" : "http://loinc.org",
+  "code" : "56445-0"
+}, "url": "http://hl7.org/fhir/ValueSet/doc-typecodes--0", "version": "5.0.0", "lang":"null", "useServer":"true", "useClient":"false", "guessSystem":"false", "valueSetMode":"ALL_CHECKS", "versionFlexible":"false"}####
+v: {
+  "display" : "Medication summary Document",
+  "code" : "56445-0",
+  "system" : "http://loinc.org"
+}
+-------------------------------------------------------------------------------------
+{"code" : {
+  "system" : "http://loinc.org",
+  "version" : "2.73",
+  "code" : "56445-0",
+  "display" : "Medication summary Doc"
+}, "url": "http://hl7.org/fhir/ValueSet/doc-typecodes", "version": "5.0.0", "lang":"null", "useServer":"true", "useClient":"true", "guessSystem":"false", "valueSetMode":"NO_MEMBERSHIP_CHECK", "versionFlexible":"false"}####
+v: {
+  "display" : "Medication summary Document",
+  "code" : "56445-0",
+  "system" : "http://loinc.org"
+}
+-------------------------------------------------------------------------------------
+{"code" : {
+  "system" : "http://loinc.org",
+  "code" : "56445-0"
+}, "url": "http://hl7.org/fhir/ValueSet/doc-typecodes--0", "version": "5.0.0", "lang":"null", "useServer":"true", "useClient":"false", "guessSystem":"false", "valueSetMode":"ALL_CHECKS", "versionFlexible":"true"}####
+v: {
+  "display" : "Medication summary Document",
+  "code" : "56445-0",
+  "system" : "http://loinc.org"
+}
+-------------------------------------------------------------------------------------
+{"code" : {
+  "system" : "http://loinc.org",
+  "version" : "current",
+  "code" : "56445-0",
+  "display" : "Medication summary Doc"
+}, "url": "http://hl7.org/fhir/ValueSet/doc-typecodes", "version": "5.0.0", "lang":"null", "useServer":"true", "useClient":"true", "guessSystem":"false", "valueSetMode":"NO_MEMBERSHIP_CHECK", "versionFlexible":"true"}####
+v: {
+  "display" : "Medication summary Document",
+  "code" : "56445-0",
+  "system" : "http://loinc.org"
+}
+-------------------------------------------------------------------------------------
diff --git a/org.hl7.fhir.validation/src/test/resources/txCache/org.hl7.fhir.validation/5.0.0/snomed.cache b/org.hl7.fhir.validation/src/test/resources/txCache/org.hl7.fhir.validation/5.0.0/snomed.cache
index 65bededef..2d6afc2e8 100644
--- a/org.hl7.fhir.validation/src/test/resources/txCache/org.hl7.fhir.validation/5.0.0/snomed.cache
+++ b/org.hl7.fhir.validation/src/test/resources/txCache/org.hl7.fhir.validation/5.0.0/snomed.cache
@@ -582,3 +582,63 @@ v: {
   "error" : "The code provided (http://snomed.info/sct#106004) is not valid (from http://tx.fhir.org/r4)"
 }
 -------------------------------------------------------------------------------------
+{"code" : {
+  "system" : "http://snomed.info/sct",
+  "code" : "90655003"
+}, "url": "http://hl7.org/fhir/ValueSet/c80-practice-codes--0", "version": "5.0.0", "lang":"null", "useServer":"true", "useClient":"false", "guessSystem":"false", "valueSetMode":"ALL_CHECKS", "versionFlexible":"true"}####
+v: {
+  "severity" : "error",
+  "error" : "The code provided (http://snomed.info/sct#90655003) is not valid (from http://tx.fhir.org/r4)"
+}
+-------------------------------------------------------------------------------------
+{"code" : {
+  "system" : "http://snomed.info/sct",
+  "code" : "24484000"
+}, "url": "http://hl7.org/fhir/ValueSet/condition-severity--0", "version": "5.0.0", "lang":"null", "useServer":"true", "useClient":"false", "guessSystem":"false", "valueSetMode":"ALL_CHECKS", "versionFlexible":"true"}####
+v: {
+  "display" : "Severe",
+  "code" : "24484000",
+  "system" : "http://snomed.info/sct"
+}
+-------------------------------------------------------------------------------------
+{"code" : {
+  "system" : "http://snomed.info/sct",
+  "code" : "24484000",
+  "display" : "Severe"
+}, "url": "http://hl7.org/fhir/ValueSet/condition-severity", "version": "5.0.0", "lang":"null", "useServer":"true", "useClient":"true", "guessSystem":"false", "valueSetMode":"NO_MEMBERSHIP_CHECK", "versionFlexible":"true"}####
+v: {
+  "display" : "Severe",
+  "code" : "24484000",
+  "system" : "http://snomed.info/sct"
+}
+-------------------------------------------------------------------------------------
+{"code" : {
+  "system" : "http://snomed.info/sct",
+  "code" : "109006"
+}, "url": "http://hl7.org/fhir/ValueSet/clinical-findings--0", "version": "5.0.0", "lang":"null", "useServer":"true", "useClient":"false", "guessSystem":"false", "valueSetMode":"ALL_CHECKS", "versionFlexible":"false"}####
+v: {
+  "display" : "Anxiety disorder of childhood OR adolescence",
+  "code" : "109006",
+  "system" : "http://snomed.info/sct"
+}
+-------------------------------------------------------------------------------------
+{"code" : {
+  "system" : "http://snomed.info/sct",
+  "code" : "109006",
+  "display" : "Anxiety disorder of childhood OR adolescence"
+}, "url": "http://hl7.org/fhir/ValueSet/clinical-findings", "version": "5.0.0", "lang":"null", "useServer":"true", "useClient":"true", "guessSystem":"false", "valueSetMode":"NO_MEMBERSHIP_CHECK", "versionFlexible":"false"}####
+v: {
+  "display" : "Anxiety disorder of childhood OR adolescence",
+  "code" : "109006",
+  "system" : "http://snomed.info/sct"
+}
+-------------------------------------------------------------------------------------
+{"code" : {
+  "system" : "http://snomed.info/sct",
+  "code" : "106004"
+}, "url": "http://hl7.org/fhir/ValueSet/clinical-findings--0", "version": "5.0.0", "lang":"null", "useServer":"true", "useClient":"false", "guessSystem":"false", "valueSetMode":"ALL_CHECKS", "versionFlexible":"false"}####
+v: {
+  "severity" : "error",
+  "error" : "The code provided (http://snomed.info/sct#106004) is not valid (from http://tx.fhir.org/r4)"
+}
+-------------------------------------------------------------------------------------
diff --git a/org.hl7.fhir.validation/src/test/resources/txCache/org.hl7.fhir.validation/5.0.0/ucum.cache b/org.hl7.fhir.validation/src/test/resources/txCache/org.hl7.fhir.validation/5.0.0/ucum.cache
index 8bc862865..3b6d5b4e4 100644
--- a/org.hl7.fhir.validation/src/test/resources/txCache/org.hl7.fhir.validation/5.0.0/ucum.cache
+++ b/org.hl7.fhir.validation/src/test/resources/txCache/org.hl7.fhir.validation/5.0.0/ucum.cache
@@ -119,3 +119,13 @@ v: {
   "system" : "http://unitsofmeasure.org"
 }
 -------------------------------------------------------------------------------------
+{"code" : {
+  "system" : "http://unitsofmeasure.org",
+  "code" : "mm[Hg]"
+}, "url": "http://hl7.org/fhir/ValueSet/ucum-vitals-common--0", "version": "5.0.0", "lang":"null", "useServer":"true", "useClient":"false", "guessSystem":"false", "valueSetMode":"ALL_CHECKS", "versionFlexible":"false"}####
+v: {
+  "display" : "millimeter of mercury",
+  "code" : "mm[Hg]",
+  "system" : "http://unitsofmeasure.org"
+}
+-------------------------------------------------------------------------------------