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Terminology API

A FHIR terminology service, hosted.

BASEapi.haau3.com/v1/fhir/r4
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api.haau3.com

Request

GET /v1/fhir/r4/CodeSystem/$lookup
  ?system=http://www.nlm.nih.gov/research/umls/rxnorm
  &code=861007
  &property=TTY

Response

{
  "resourceType": "Parameters",
  "parameter": [
    { "name": "name", "valueString": "RxNorm" },
    { "name": "display", "valueString":
      "metformin hydrochloride 500 MG Oral Tablet" },
    { "name": "property", "part": [
      { "name": "code", "valueCode": "TTY" },
      { "name": "value", "valueCode": "SCD" }
    ] }
  ]
}

What it does

  • Look up codes, expand value sets, validate codes
  • LOINC and RxNorm
  • Standard FHIR responses
  • FHIR $lookup, $expand, and $validate-code
  • Free in production during the community preview

Built on

FHIR R4FHIR Terminology ServiceLOINCRxNorm

Look up codes, validate codes, and expand value sets through a standards-based FHIR terminology service, so you don't have to host one yourself. LOINC and RxNorm are supported today, with RxNorm scoped to the Current Prescribable Content set. More code systems and operations are coming.

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Detailed developer docs live at docs.haau3.com.

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