Intersection of http://hl7.org/fhir/ValueSet/observation-codes and http://hl7.org/fhir/uv/ips/ValueSet/edd-method-uv-ips
This is the ValueSet that contains codes in both LOINC Codes (http://hl7.org/fhir/ValueSet/observation-codes) and Pregnancy Expected Delivery Date Method - IPS (http://hl7.org/fhir/uv/ips/ValueSet/edd-method-uv-ips).