HL7 Europe Base and Core FHIR IG
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HL7 Europe Base and Core FHIR IG, published by HL7 Europe. This guide is not an authorized publication; it is the continuous build for version 0.2.0-ci-build built by the FHIR (HL7® FHIR® Standard) CI Build. This version is based on the current content of https://github.com/hl7-eu/base/ and changes regularly. See the Directory of published versions

EHDSMedicationprescription to FHIR MedicationRequest Mapping

EHDSMedicationPrescription → MedicationRequest

EHDSMedicationPrescription → MedicationRequest

​ This page describes the element-by-element mapping from the EHDSMedicationPrescription logical model to the FHIR MedicationRequest profile in this Implementation Guide.

Context Xt-EHR currently has no dedicated common model for MedicationRequest. For that reason, this mapping is based on the prescription model realised by the HL7 Europe Medication Prescription and Dispense (MPD) FHIR Implementation Guide (https://hl7.eu/fhir/mpd).
EHDSMedicationPrescription → MedicationRequest
EHDSMedicationPrescription (Logical Model) Relationship MedicationRequest
Element Description Relation Resource Element Description Notes
header Common header for the prescription dataset. relatedto MedicationRequest . General metadata. Dataset-level information; not directly represented on the MedicationRequest instance.
header.subject Patient for whom the medication is prescribed. equivalent MedicationRequest subject Identifies the patient. Reference to Patient.
header.identifier Business identifier(s) for the prescription. source-narrow-than-target MedicationRequest identifier External identifiers for this request.
header.identifier Identifier for a single item on the prescription. source-narrow-than-target MedicationRequest groupIdentifier Identifiers for a group of prescribed items.
header.authorship Details about the prescriber (author). relatedto MedicationRequest requester Who is requesting/prescribing the medication. FHIR separates requester, recorder, and authoredOn; see child elements for specifics.
header.authorship.author[x] The prescriber who made the prescription. equivalent MedicationRequest requester The authorizing practitioner or organization. Reference to Practitioner / PractitionerRole / Organization depending on profile rules.
header.authorship.datetime Time of issuing/signing the prescription. equivalent MedicationRequest authoredOn When the request was authored.
header.lastUpdate Last technical correction/update timestamp. equivalent MedicationRequest meta.lastUpdated System-level modification time. Populate only if this represents the technical update instant.
header.status Status of authorization to dispense. equivalent MedicationRequest status Active/on-hold/cancelled/etc. Use statusReason when additional context is required.
header.statusReason[x] Reason for the current prescription status. source-wider-than-target MedicationRequest statusReason Explains the status. The model allows for CodeableConcept and string. The target only CodeableConcept.
header.language Language in which the resource is written. equivalent MedicationRequest language Language of the narrative.
header.recorder Recorder of the prescription/draft. equivalent MedicationRequest recorder Who recorded the request in the system.
header.recordingDate Time of authoring the prescription/draft in the system. relatedto MedicationRequest eventhistory.recorded Date recorded in the system. what is the difference with authorship.datetime? autoredOn ?
header.validFrom Effective date of the prescription. equivalent MedicationRequest dispenseRequest.validityPeriod.start Start of dispensing validity.
header.validUntil Validity period end date. equivalent MedicationRequest dispenseRequest.validityPeriod.end End of dispensing validity.
presentedForm Entire prescription as issued (PDF, etc.). no-map MedicationRequest Reference a DocumentReference containing the rendered prescription.
comment Additional information or comments. equivalent MedicationRequest note Textual comments.
prescriptionItem Prescription line for a medication. equivalent MedicationRequest . MedicationRequest instances represent single items. Create one MedicationRequest per prescription item.
prescriptionItem.identifier Identifier for a single item on the prescription. equivalent MedicationRequest identifier Identifiers for that single prescribed item.
prescriptionItem.category Category or categories of the prescription. equivalent MedicationRequest category Type of prescription. Use appropriate value set (reimbursement type, etc.).
prescriptionItem.medication Prescribed product (branded, generic, etc.). equivalent MedicationRequest medication[x]〔R4〕 Medication as CodeableConcept or Reference. EHDS model constrains to a reference to EHDSMedication.
prescriptionItem.medication Prescribed product (branded, generic, etc.). equivalent MedicationRequest medication〔R5〕 Medication as CodeableConcept or Reference. EHDS model constrains to a reference to EHDSMedication.
prescriptionItem.indicationCodeableConcept Coded reason for the prescription. equivalent MedicationRequest reasonCode〔R4〕 Why the medication is prescribed.
prescriptionItem.indicationCodeableConcept Coded reason for the prescription. equivalent MedicationRequest reason.concept〔R5〕 Why the medication is prescribed.
prescriptionItem.indicationEHDSCondition Diagnosis/reason referenced as a Condition. equivalent MedicationRequest reasonReference〔R4〕 Reference to the clinical reason. Reference to Condition or other resource.
prescriptionItem.indicationEHDSCondition Diagnosis/reason referenced as a Condition. equivalent MedicationRequest reason.reference〔R5〕 Reference to the clinical reason. Reference to Condition or other resource.
prescriptionItem.indicationText Free-text reason for the prescription. relatedto MedicationRequest reasonCode.text Textual reason. Alternatively capture as note if preferred.
prescriptionItem.intendedUseType Intent of the prescription (prophylaxis, treatment, etc.). source-is-narrower-than-target MedicationRequest category Classification of the request. Use dedicated category code or custom extension if additional granularity is required.
prescriptionItem.periodOfUse Overall period over which the medication is to be taken. relatedto MedicationRequest extension:effectiveDosePeriod〔R4〕 Period over which the medication should be taken.
prescriptionItem.periodOfUse Overall period over which the medication is to be taken. relatedto MedicationRequest effectiveDosePeriod〔R5〕 Period over which the medication should be taken.
prescriptionItem.quantityPrescribed Overall quantity of product prescribed. equivalent MedicationRequest dispenseRequest.extension:prescribedQuantity Overall amount of product prescribed, independent from the number of repeats.
prescriptionItem.dosageInstructions Dosage and administration instructions. equivalent MedicationRequest dosageInstruction Dosage instructions for administration. Map each EHDSDosaging entry to a dosageInstruction.
prescriptionItem.preparationInstructions Additional instructions about preparation or dispense. relatedto MedicationRequest dispenseRequest.extension:dispenserInstruction〔R4〕 Additional information for the dispenser FHIR R4 has no dedicated field; preadopt the R5 element or capture as note
prescriptionItem.preparationInstructions Additional instructions about preparation or dispense. relatedto MedicationRequest dispenseRequest.dispenserInstruction〔R5〕 Additional information for the dispenser
prescriptionItem.substitution.allowedBoolean Whether substitution is allowed. equivalent MedicationRequest substitution.allowedBoolean Indicates if substitution is permitted.
prescriptionItem.substitution.allowedCodeableConcept How/what substitution is allowed. source-is-broader-than-target MedicationRequest substitution.allowedCodeableConcept 〔R5〕 CodeableConcept describing substitution allowance. In R4 only boolean exists; use pre-adopted R5 element/extension if needed.
prescriptionItem.substitution.reason[x] Reason for substitution requirements. equivalent MedicationRequest substitution.reason Why substitution is (not) allowed. FHIR accepts CodeableConcept; textual reasons may need an additional note.
prescriptionItem.status Status of a single item of the prescription. equivalent MedicationRequest status Status at the line level. For single-item prescriptions, same meaning as header.status.
prescriptionItem.statusReason[x] Reason for the line-item status. equivalent MedicationRequest statusReason Status explanation. As above, textual-only reasons may require notes.
prescriptionItem.repeatsAllowed Number of refills authorized. equivalent MedicationRequest dispenseRequest.numberOfRepeatsAllowed Repeat count.
prescriptionItem.minimumDispenseInterval Minimum interval between dispenses. equivalent MedicationRequest dispenseRequest.dispenseInterval Minimum dispense interval.
prescriptionItem.offLabel.isOffLabelUse Indicates off-label use. relatedto MedicationRequest extension:offLabelUse Flag for off-label prescription. Implementer-specific extension required.
prescriptionItem.offLabel.reason[x] Reason for off-label use. relatedto MedicationRequest extension:offLabelUse.reason Explanation of off-label decision. Same extension as above; allow CodeableConcept or string.
prescriptionItem.comment Additional information or comments (line-level). equivalent MedicationRequest note.text Line-level comments. Use note.author / note.time if available.

Return to overview: EHDS Logical Models → FHIR Profiles