http://hl7.org/fhir/us/core/ValueSet/omb-ethnicity-category|8.0.0-ballot

OMB Ethnicity Categories

The codes for the concepts 'Unknown', 'Asked but no answer', and the ethnicity categories - 'Hispanic or Latino' and 'Not Hispanic or Latino' - as defined by the [OMB Standards for Maintaining, Collecting, and Presenting Federal Data on Race and Ethnicity, Statistical Policy Directive No. 15, as revised, October 30, 1997](https://www.govinfo.gov/content/pkg/FR-1997-10-30/pdf/97-28653.pdf).