Classify a FHIR R4 Bundle into an MS-DRG ($classify)
FHIR front door for the deterministic DRG classifier. Send a Bundle containing
the encounter’s Condition resources (ICD-10-CM codings; principal marked via
Encounter.diagnosis rank 1, else first-listed), optional Procedure
resources (ICD-10-PCS codings), a minimal Patient (only gender is read),
and optionally an Encounter (hospitalization.dischargeDisposition maps to
discharge status).
Patient identifiers are dropped at the boundary — names, identifiers,
addresses and telecom are never read and never stored; the response attests
this with fhir_identifiers_dropped. The submitted Bundle is not persisted.
Returns a FHIR Parameters resource carrying the DRG code, description and
grouper version. Malformed or unclassifiable input returns an
OperationOutcome — never a partial result.
Authorizations
API key for organization authentication. Obtain from the organization settings or API key management endpoint.
Response
FHIR Parameters with the DRG result

