Care Coordination and 360 Referrals (Proof of Concept) - Local Development build (v0.1.0) built by the FHIR (HL7® FHIR® Standard) Build Tools. See the Directory of published versions

Patient Demographics Query [ITI-78] and Match [ITI-119]

Mobile Patient Demographics Query [ITI-78] and Patient Demographics Match [ITI-119] (IHE PDQm) - a Patient Demographics Consumer finds a patient in a Patient Demographics Supplier by identifier or demographics. See Patient Identity (PDQm) for the actors and the NHS England services (PDS).

References

• IHE ITI PDQm 3.2.0 - ITI-78, ITI-119
• Profile: Patient
• PDS FHIR API

Interaction

sequenceDiagram
    participant C as Patient Demographics Consumer
    participant S as Patient Demographics Supplier
    C ->> S: [ITI-78] GET [base]/Patient?{parameters}<br/>or GET [base]/Patient/{id}
    S -->> C: Bundle (searchset) or Patient
    C ->> S: [ITI-119] POST [base]/Patient/$match<br/>(Parameters: Patient)
    S -->> C: Bundle (searchset, scored)

Mobile Patient Demographics Query [ITI-78]

The example patient is Hodor TAMESIDE, an NW GMSA test patient.

Patient Demographics Match [ITI-119]

The Consumer posts what it knows; the Supplier returns candidates with a score:

{
  "resourceType": "Parameters",
  "parameter": [
    { "name": "resource",
      "resource": {
        "resourceType": "Patient",
        "name": [ { "family": "TAMESIDE", "given": [ "Hodor" ] } ],
        "gender": "male",
        "birthDate": "1960-07-27",
        "address": [ { "postalCode": "OL7 0NS" } ]
      } },
    { "name": "onlyCertainMatches", "valueBoolean": true }
  ]
}

PDS has no $match. Its search returns Bundle.entry.search.score (1.0 = exact) and supports _fuzzy-match and _exact-match; a PDQm Match facade over PDS would map onlyCertainMatches to _exact-match - To confirm.

Expected Actions

• The Consumer SHALL confirm the patient (name, date of birth, NHS Number) before using the result to send, accept or file a referral or report.
• If PDS returns a different (superseding) NHS Number, the Referral Recipient SHOULD use it and tell the Referral Initiator (e.g. in the accept [PCC-55]).
• More than one candidate is not an error, but SHALL NOT be resolved automatically in system-to-system processing; the referral is held for manual matching.
• Restricted (sensitive) patients' location data SHALL NOT be copied into referrals, letters or directories.

HL7 v2

Patient Demographics Query [ITI-21] (indicative):