diff --git a/org.hl7.fhir.utilities/src/main/java/org/hl7/fhir/utilities/Utilities.java b/org.hl7.fhir.utilities/src/main/java/org/hl7/fhir/utilities/Utilities.java
index 343490142..1ef878654 100644
--- a/org.hl7.fhir.utilities/src/main/java/org/hl7/fhir/utilities/Utilities.java
+++ b/org.hl7.fhir.utilities/src/main/java/org/hl7/fhir/utilities/Utilities.java
@@ -252,6 +252,10 @@ public class Utilities {
     return new Inflector().camelCase(value.trim().replace(" ", "_"), false);
   }
 
+  public static String upperCamelCase(String value) {
+    return new Inflector().upperCamelCase(value.trim().replace(" ", "_"));
+  }
+
   public static String escapeXml(String doco) {
     if (doco == null)
       return "";
diff --git a/org.hl7.fhir.validation/src/main/java/org/hl7/fhir/validation/instance/type/CodeSystemValidator.java b/org.hl7.fhir.validation/src/main/java/org/hl7/fhir/validation/instance/type/CodeSystemValidator.java
index b482b84ec..3cb045afe 100644
--- a/org.hl7.fhir.validation/src/main/java/org/hl7/fhir/validation/instance/type/CodeSystemValidator.java
+++ b/org.hl7.fhir.validation/src/main/java/org/hl7/fhir/validation/instance/type/CodeSystemValidator.java
@@ -98,8 +98,10 @@ public class CodeSystemValidator  extends BaseValidator {
         rule(errors, IssueType.REQUIRED, cs.line(), cs.col(), stack.getLiteralPath(), cs.hasChild("status"), I18nConstants.VALUESET_SHAREABLE_MISSING_HL7, "status");                      
         rule(errors, IssueType.REQUIRED, cs.line(), cs.col(), stack.getLiteralPath(), cs.hasChild("experimental"), I18nConstants.VALUESET_SHAREABLE_MISSING_HL7, "experimental");                      
         rule(errors, IssueType.REQUIRED, cs.line(), cs.col(), stack.getLiteralPath(), cs.hasChild("description"), I18nConstants.VALUESET_SHAREABLE_MISSING_HL7, "description"); 
-        rule(errors, IssueType.REQUIRED, cs.line(), cs.col(), stack.getLiteralPath(), cs.hasChild("caseSensitive"), I18nConstants.VALUESET_SHAREABLE_MISSING_HL7, "caseSensitive"); 
         rule(errors, IssueType.REQUIRED, cs.line(), cs.col(), stack.getLiteralPath(), cs.hasChild("content"), I18nConstants.VALUESET_SHAREABLE_MISSING_HL7, "content"); 
+        if (!"supplement".equals(cs.getChildValue("content"))) {
+          rule(errors, IssueType.REQUIRED, cs.line(), cs.col(), stack.getLiteralPath(), cs.hasChild("caseSensitive"), I18nConstants.VALUESET_SHAREABLE_MISSING_HL7, "caseSensitive");
+        }
       } else {
         warning(errors, IssueType.REQUIRED, cs.line(), cs.col(), stack.getLiteralPath(), cs.hasChild("url"), I18nConstants.VALUESET_SHAREABLE_MISSING, "url");                      
         warning(errors, IssueType.REQUIRED, cs.line(), cs.col(), stack.getLiteralPath(), cs.hasChild("version"), I18nConstants.VALUESET_SHAREABLE_MISSING, "version");                      
@@ -108,8 +110,10 @@ public class CodeSystemValidator  extends BaseValidator {
         warning(errors, IssueType.REQUIRED, cs.line(), cs.col(), stack.getLiteralPath(), cs.hasChild("status"), I18nConstants.VALUESET_SHAREABLE_MISSING, "status");                      
         warning(errors, IssueType.REQUIRED, cs.line(), cs.col(), stack.getLiteralPath(), cs.hasChild("experimental"), I18nConstants.VALUESET_SHAREABLE_MISSING, "experimental");                      
         warning(errors, IssueType.REQUIRED, cs.line(), cs.col(), stack.getLiteralPath(), cs.hasChild("description"), I18nConstants.VALUESET_SHAREABLE_MISSING, "description"); 
-        warning(errors, IssueType.REQUIRED, cs.line(), cs.col(), stack.getLiteralPath(), cs.hasChild("caseSensitive"), I18nConstants.VALUESET_SHAREABLE_MISSING, "caseSensitive"); 
         warning(errors, IssueType.REQUIRED, cs.line(), cs.col(), stack.getLiteralPath(), cs.hasChild("content"), I18nConstants.VALUESET_SHAREABLE_MISSING, "content"); 
+        if (!"supplement".equals(cs.getChildValue("content"))) {
+          warning(errors, IssueType.REQUIRED, cs.line(), cs.col(), stack.getLiteralPath(), cs.hasChild("caseSensitive"), I18nConstants.VALUESET_SHAREABLE_MISSING, "caseSensitive");
+        }
       }
     }
   }