Union of http://cts.nlm.nih.gov/fhir/ValueSet/2.16.840.1.113762.1.4.1267.16 and http://phinvads.cdc.gov/fhir/ValueSet/2.16.840.1.114222.4.11.888

This is the ValueSet that contains all the codes in Answer Set with Yes No and Unknowns (http://cts.nlm.nih.gov/fhir/ValueSet/2.16.840.1.113762.1.4.1267.16) and Yes No Unknown (YNU) (http://phinvads.cdc.gov/fhir/ValueSet/2.16.840.1.114222.4.11.888). E.g. what you have to deal with if you get resources containing codes in either of them

CodeSystem

Generated Narrative: ValueSet 06ae9d84-be0e-49ba-a70a-3f8543a4a874-269

This value set includes codes based on the following rules: