1) within careplan-example-pregnancy, the extension URLs http://example.org/DoNotUse/careplan#lmp and http://example.org/DoNotUse/careplan#andetails do not have the proper example prefix (http://example.org/fhir/StructureDefinition).

2) within careplan-example-integrated, the extenstion URLs http://example.org/DoNotUse/StructureDefinition/RevisionDate and http://example.org/DoNotUse/General/RevisionDate do not have the proper example prefix.

Per QA 2c, Where extensions appear in examples, those extensions should either be defined within published profiles (and point to those profiles by a valid URL) or should clearly be example extensions (using the prefix http://example.org/fhir/StructureDefinition)

http://wiki.hl7.org/index.php?title=DSTU_QA_Guidelines