Medication Prescription and Dispense (MPD)
1.0.0-comment-3 - ballot

Medication Prescription and Dispense (MPD), published by Integrating the Healthcare Enterprise (IHE). This guide is not an authorized publication; it is the continuous build for version 1.0.0-comment-3 built by the FHIR (HL7® FHIR® Standard) CI Build. This version is based on the current content of https://github.com/IHE/pharm-mpd/tree/98-pc-clarify-the-transaction-pharm-5 and changes regularly. See the Directory of published versions

## PHARM-5: Submit Medication Order

This section corresponds to transaction [PHARM-5] of the IHE Technical Framework. Transaction [PHARM-5] is used by the Medication Order Placer and the Medication Order Receiver actors. The Submit Medication Order [PHARM-5] transaction is used to transmit a `MedicationRequest` - typically a prescription.

### X:Y.Z.1 Scope

The Submit Medication Order [PHARM-5] transaction passes a `MedicationRequest` from a Medication Order Placer to a Medication Order Receiver. The `MedicationRequest` can be:

- a single-line Prescription
- a prescription as part of a group of prescriptions
- a proposal, or a draft
- a not-yet-validated prescription or order
- a medication instance order
- …

### X:Y.Z.2 Actors Roles

Table X:Y.Z.2-1: Actor Roles

Actor | Role
--- | ---
Medication Order Placer | Submits Medication Orders to the Medication Order Consumer
Medication Order Receiver | Accepts Medication Orders from the Medication Order Placer

### X:Y.Z.3 Referenced Standards

FHIR-R5 HL7 FHIR Release 5.0

### X:Y.Z.4 Messages

Figure X:Y.Z.4-1: Submit Medication Order Interactions

#### X:Y.Z.4.1 Submit Medication Order Request Message

The Medication Order Placer submits a `MedicationRequest` resource using the HTTP `POST` or `PUT` method to the /MedicationRequest endpoint.

##### X:Y.Z.4.1.1 Trigger Events

This method is invoked When submitting a prescription or draft.

##### X:Y.Z.4.1.2 Message Semantics

The content type of the HTTP body shall be either `application/fhir+json` or `application/fhir+xml`.

The Medication Order Placer shall assure the request is consistent and actionable before sending.

###### X:Y.Z.4.1.2.1 Resource content

The Submit Medication Order is a `MedicationRequest` resource.
The semantics of the request and data elements are captured in the MedicationOrderModel and the technical specification in the MedicationOrder profile.

##### X:Y.Z.4.1.3 Expected Actions

Upon receiving the `MedicationRequest`, the Medication Order Receiver is expected to store and/or forward the order.

#### X:Y.Z.4.2 Submit Medication Order Response

The Medication Order Receiver SHALL return an HTTP Status code appropriate to the processing outcome.

##### X:Y.Z.4.2.1 Trigger Events

This response is always expected and provides the Medication Order Placer with acknowledgement of the request including any technical issues.

##### X:Y.Z.4.2.2 Message Semantics

- On success: `201 (Created)`
- On error: `Appropriate error code`

###### X:Y.Z.4.2.2.1 Resource content

The response shall contain the resource created from the request, including the `id`, `version`, etc. assigned by the server.

In case of error, the response SHALL contain an `OperationOutcome`.

##### X:Y.Z.4.2.3 Expected Actions

Upon receiving the response, the Medication Order Placer can persist the `id`, `status`, or trigger any issue resolution if needed.