{ "description": "Codes for assigning sex at birth as specified by the [Office of the National Coordinator for Health IT (ONC)](https://www.healthit.gov/newsroom/about-onc)", "compose": { "include": [ { "system": "http://hl7.org/fhir/v3/AdministrativeGender", "concept": [ { "code": "F", "display": "Female" }, { "code": "M", "display": "Male" } ] }, { "system": "http://hl7.org/fhir/v3/NullFlavor", "concept": [ { "code": "UNK", "display": "Unknown" } ] } ] }, "_filename": "ValueSet-us-core-birthsex.json", "package_name": "hl7.fhir.us.core", "date": "2016-08-10", "publisher": "US Realm Steering Committee", "name": "US Core Birth Sex Value Set", "type": null, "experimental": null, "resourceType": "ValueSet", "title": null, "package_version": "0.0.0", "status": "active", "id": "f94daa82-9aa2-4bc1-b090-90c2f0e87c9c", "kind": null, "url": "http://hl7.org/fhir/us/core/ValueSet/us-core-birthsex", "version": "1.6.0", "contact": [ { "telecom": [ { "value": "http://hl7.org/fhir", "system": "other" } ] } ] }