This value set includes codes based on the following rules:

• Include these codes as defined in http://hl7.org/fhir/v3/NullFlavor version 📍1.0.2

  Code	Display	Definition
  ASKU	Asked but no answer	Information was sought but not found (e.g. patient was asked but didn't know)
  UNK	Unknown	Description:A proper value is applicable, but not known. Usage Notes: This means the actual value is not known. If the only thing that is unknown is how to properly express the value in the necessary constraints (value set, datatype, etc.), then the OTH or UNC flavor should be used. No properties should be included for a datatype with this property unless: Those properties themselves directly translate to a semantic of "unknown". (E.g. a local code sent as a translation that conveys 'unknown') Those properties further qualify the nature of what is unknown. (E.g. specifying a use code of "H" and a URL prefix of "tel:" to convey that it is the home phone number that is unknown.)

• Include these codes as defined in http://hl7.org/fhir/v3/Race version 📍1.0.2

  Code	Display	Definition
  1002-5	American Indian or Alaska Native	American Indian or Alaska Native
  2028-9	Asian	Asian
  2054-5	Black or African American	Black or African American
  2076-8	Native Hawaiian or Other Pacific Islander	Native Hawaiian or Other Pacific Islander
  2106-3	White	White

This value set expansion contains 7 concepts.