Implementation guide for digital medicines

This guidance is under active development by NHS Digital and content may be added or updated on a regular basis.

Prescribing system acts as the FHIR server

(1) The prescribing system sends an event notification to the pharmacy system when a new MedicationRequest is ready for processing. The notification must include the external externally referencable identifer. The prescirbing system assigns the logical id.

(2) The prescribing system GETs the MedicationRequest using the identifer. The GET request may be sent at any time so the pharmacy system may choose to expose MedicationRequest.status values that represent both in-progress and end-states for the prescribing record.

(3) The dispensing system creates the MedicationDispense with a valid externally referencable identifer and POSTs to the prescribing system which adds the logical id on receipt. The MedicationDispense is triggered when the MedicationDispense.status = completed.

(4) On receipt, the prescribing system can set the MedicationRequest.status = completed.

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