Union of http://hl7.org/fhir/ValueSet/observation-methods and http://cts.nlm.nih.gov/fhir/ValueSet/2.16.840.1.113883.11.20.9.80

This is the ValueSet that contains all the codes in Observation Methods (http://hl7.org/fhir/ValueSet/observation-methods) and Pregnancy Status Determination Method (http://cts.nlm.nih.gov/fhir/ValueSet/2.16.840.1.113883.11.20.9.80). E.g. what you have to deal with if you get resources containing codes in either of them

CodeSystem

Generated Narrative: ValueSet 59b73fee-5eb3-4338-8e7d-c6a305d2bde6-1193

This value set includes codes based on the following rules: