This value set includes codes based on the following rules:

• Include these codes as defined in http://hl7.org/fhir/us/davinci-crd/CodeSystem/temp

  Code	Display	Definition
  performer	Performer Needed	Information about who (specifically, or at least performer type and affiliation) is necessary to make a determination of coverage and/or prior auth expectations
  location	Location Needed	Information about where (specific clinic/site or organization) is necessary to make a determination of coverage and/or prior auth expectations
  timeframe	Timeframe Needed	Information about when the service will be performed that is more granular than the order effective period is necessary to make a determination of coverage and/or prior auth expectations

• Include these codes as defined in http://terminology.hl7.org/CodeSystem/v3-NullFlavor

  Code	Display
  OTH