| Left: | US Core Birth Sex Extension (http://hl7.org/fhir/us/core/StructureDefinition/us-core-birthsex) | 
| Right: | US Core Birth Sex Extension (http://hl7.org/fhir/us/core/StructureDefinition/us-core-birthsex) | 
| Error | StructureDefinition.version | Values for version differ: '6.1.0' vs '8.0.0-ballot' | 
| Information | StructureDefinition.publisher | Values for publisher differ: 'HL7 International - Cross-Group Projects' vs 'HL7 International / Cross-Group Projects' | 
| Name | Value | Comments | |
|---|---|---|---|
|  abstract | false | ||
|  baseDefinition | http://hl7.org/fhir/StructureDefinition/Extension | ||
|  copyright | Used by permission of HL7 International, all rights reserved Creative Commons License | ||
|  date | 2023-05-15 | ||
|  description | A code classifying the person's sex assigned at birth as specified by the [Office of the National Coordinator for Health IT (ONC)](https://www.healthit.gov/newsroom/about-onc). This extension aligns with the C-CDA Birth Sex Observation (LOINC 76689-9). After version 6.0.0, this extension is no longer a *USCDI Requirement*. | ||
|  experimental | |||
|  fhirVersion | 4.0.1 | ||
|  jurisdiction | |||
|   jurisdiction[0] | urn:iso:std:iso:3166#US | ||
|  kind | complex-type | ||
|  name | USCoreBirthSexExtension | ||
|  publisher | HL7 International - Cross-Group Projects | HL7 International / Cross-Group Projects | 
 | 
|  purpose | |||
|  status | active | ||
|  title | US Core Birth Sex Extension | ||
|  type | Extension | ||
|  url | http://hl7.org/fhir/us/core/StructureDefinition/us-core-birthsex | ||
|  version | 6.1.0 | 8.0.0-ballot | 
 | 
| Name | L Flags | L Card. | L Type | L Description & Constraints | R Flags | R Card. | R Type | R Description & Constraints | Comments  | 
|---|---|---|---|---|---|---|---|---|---|
|   Extension | 0..1 | Extension | Extension | 0..1 | Extension | Extension | |||
|    id | 0..1 | string | Unique id for inter-element referencing | 0..1 | string | Unique id for inter-element referencing | |||
|    Slices for extension | 0..* | Extension | Additional content defined by implementations Slice: Unordered, Open by value:url | 0..* | Extension | Additional content defined by implementations Slice: Unordered, Open by value:url | |||
|    url | 1..1 | uri | "http://hl7.org/fhir/us/core/StructureDefinition/us-core-birthsex" | 1..1 | uri | "http://hl7.org/fhir/us/core/StructureDefinition/us-core-birthsex" | |||
|    value[x] | 1..1 | code | Value of extension Binding: ?? (required): Code for sex assigned at birth | 1..1 | code | Value of extension Binding: ?? (required): Code for sex assigned at birth | |||
|  Documentation for this format | |||||||||