diff --git a/org.hl7.fhir.utilities/src/main/java/org/hl7/fhir/utilities/i18n/I18nConstants.java b/org.hl7.fhir.utilities/src/main/java/org/hl7/fhir/utilities/i18n/I18nConstants.java
index 09902f2a2..df6d04c43 100644
--- a/org.hl7.fhir.utilities/src/main/java/org/hl7/fhir/utilities/i18n/I18nConstants.java
+++ b/org.hl7.fhir.utilities/src/main/java/org/hl7/fhir/utilities/i18n/I18nConstants.java
@@ -48,7 +48,7 @@ public class I18nConstants {
   public static final String CODESYSTEM_CS_NO_VS_NOTCOMPLETE = "CODESYSTEM_CS_NO_VS_NOTCOMPLETE";
   public static final String CODESYSTEM_CS_VS_INCLUDEDETAILS = "CodeSystem_CS_VS_IncludeDetails";
   public static final String CODESYSTEM_CS_VS_INVALID = "CodeSystem_CS_VS_Invalid";
-  public static final String CODESYSTEM_CS_VS_MISMATCH = "CodeSystem_CS_VS_MisMatch";
+  public static final String CODESYSTEM_CS_VS_EXP_MISMATCH = "CODESYSTEM_CS_VS_EXP_MISMATCH";
   public static final String CODESYSTEM_CS_VS_WRONGSYSTEM = "CodeSystem_CS_VS_WrongSystem";
   public static final String CODE_FOUND_IN_EXPANSION_HOWEVER_ = "Code_found_in_expansion_however_";
   public static final String CODING_HAS_NO_SYSTEM__CANNOT_VALIDATE = "Coding_has_no_system__cannot_validate";
diff --git a/org.hl7.fhir.utilities/src/main/resources/Messages.properties b/org.hl7.fhir.utilities/src/main/resources/Messages.properties
index f7e681281..b4759aa2e 100644
--- a/org.hl7.fhir.utilities/src/main/resources/Messages.properties
+++ b/org.hl7.fhir.utilities/src/main/resources/Messages.properties
@@ -24,7 +24,7 @@ Bundle_Document_Date_Missing_html = [(type = ''document'') implies (meta.lastUpd
 CapabalityStatement_CS_SP_WrongType = Type mismatch - SearchParameter ''{0}'' type is {1}, but type here is {2}
 CodeSystem_CS_VS_IncludeDetails = CodeSystem {0} has an ''all system'' value set of {1}, but the include has extra details
 CodeSystem_CS_VS_Invalid = CodeSystem {0} has an ''all system'' value set of {1}, but doesn''t have a single include
-CodeSystem_CS_VS_MisMatch = CodeSystem {0} has an ''all system'' value set of {1}, but it is an expansion
+CODESYSTEM_CS_VS_EXP_MISMATCH = CodeSystem {0} has an ''all system'' value set of {1}, but it is an expansion with the wrong number of concepts (found {2}, expected {3})
 CodeSystem_CS_VS_WrongSystem = CodeSystem {0} has an ''all system'' value set of {1}, but doesn''t have a matching system ({2})
 Extension_EXT_Context_Wrong = The extension {0} is not allowed to be used at this point (allowed = {1}; this element is [{2})
 Extension_EXT_Count_Mismatch = Extensions count mismatch: expected {0} but found {1}
@@ -617,7 +617,7 @@ SD_NESTED_MUST_SUPPORT_SNAPSHOT = The element {0} has types/profiles/targets tha
 Unable_to_connect_to_terminology_server = Unable to connect to terminology server. Error = {0}
 SD_ED_TYPE_PROFILE_UNKNOWN = Unable to resolve profile {0}
 SD_ED_TYPE_PROFILE_NOTYPE = Found profile {0}, but unable to determine the type it applies it 
-SD_ED_TYPE_PROFILE_WRONG = Profile {0} is for type {1}, but the {3} element has type {2}
+SD_ED_TYPE_PROFILE_WRONG = Extension {0} is for type {1}, but the {3} element has type {2}
 SD_ED_TYPE_PROFILE_WRONG_TARGET = Profile {0} is for type {1}, which is not a {4} (which is required because the {3} element has type {2})
 SD_ED_TYPE_NO_TARGET_PROFILE = Type {0} does not allow for target Profiles 
 TERMINOLOGY_TX_NOSVC_BOUND_REQ = Could not confirm that the codes provided are from the required value set {0} because there is no terminology service
diff --git a/org.hl7.fhir.validation/src/main/java/org/hl7/fhir/validation/instance/type/StructureDefinitionValidator.java b/org.hl7.fhir.validation/src/main/java/org/hl7/fhir/validation/instance/type/StructureDefinitionValidator.java
index 659d9a3e6..b40f6b82c 100644
--- a/org.hl7.fhir.validation/src/main/java/org/hl7/fhir/validation/instance/type/StructureDefinitionValidator.java
+++ b/org.hl7.fhir.validation/src/main/java/org/hl7/fhir/validation/instance/type/StructureDefinitionValidator.java
@@ -174,7 +174,7 @@ public class StructureDefinitionValidator extends BaseValidator {
     rule(errors, IssueType.BUSINESSRULE, stack.getLiteralPath(), !snapshot || bindableType(typeCodes) != null, I18nConstants.SD_ED_BIND_NO_BINDABLE, path, typeCodes.toString());
     if (binding.hasChild("valueSet")) {
       Element valueSet = binding.getNamedChild("valueSet");
-      String ref = valueSet.hasPrimitiveValue() ? valueSet.primitiveValue() : valueSet.getNamedChildValue("refernece");
+      String ref = valueSet.hasPrimitiveValue() ? valueSet.primitiveValue() : valueSet.getNamedChildValue("reference");
       if (warning(errors, IssueType.BUSINESSRULE, stack.getLiteralPath(), !snapshot || ref != null, I18nConstants.SD_ED_SHOULD_BIND_WITH_VS, path)) {
         Resource vs = context.fetchResource(Resource.class, ref);
         if (warning(errors, IssueType.BUSINESSRULE, stack.getLiteralPath(), vs != null, I18nConstants.SD_ED_BIND_UNKNOWN_VS, path, ref)) {
@@ -300,10 +300,11 @@ public class StructureDefinitionValidator extends BaseValidator {
         return true;
       }
       sd = sd.hasBaseDefinition() ? context.fetchResource(StructureDefinition.class, sd.getBaseDefinition()) : null;
-      if (sd != null && !sd.getAbstract()) {
+      if (!(VersionUtilities.isR2Ver(context.getVersion()) || VersionUtilities.isR2BVer(context.getVersion())) && sd != null && !sd.getAbstract()) {
         sd = null;
       }
     }
+    
     return false;
   }