Implementation guidance for use of the medication resources themselves will be contained in forthcoming use-case specific Implementation Guides.
The CareConnect-MedicationRequest-1 structure definition contains a number of elements that are out of scope for this implementation guidance. Only those elements relevant to convey a medication request with a structured dosage instruction are in scope of this guidance.
A complete and fit-for-purpose CareConnect-MedicationRequest-1 example would need additional elements populated, for example a reference to the patient within subject and a reference to the prescriber within requester.
For prescribing or dispensing uses cases where a Virtual Medicinal Product (VMP) or Actual Medicinal Product (AMP) is defined, the implementation will often require the requested or dispensed quantity of medication using the dispenseRequest structure. This will always be the case for data sharing within Primary Care.
The dispenseRequest structure contains a simple quantity and coded unit of measure.
By preference, use UCUM units of measure (system URL: “http://unitsofmeasure.org”).
Examples of when a UCUM unit of measure would be used are “gram” or “milliliter” or “percent”.
Where a UCUM unit of measure is not defined, use a SNOMED-CT unit of measure (system URL: “http://snomed.info/sct”).
Examples of when a SNOMED-CT unit of measure would typically be used are “tablet”, “capsule” or “ampule”.
Units of presentation relevant to medication dosage instructions are contained within the hierarchy as descendants of 732935002 | Unit of presentation.
Units of measure, where UCUM is not available, are contained within the hierarchy as descendants of 767524001 | Unit of measure.
See Dosage Structure.