# Mapping GP Medications to a FHIR resource profile

**Category:** [FHIR](https://openhealthhub.org/c/fhir/31)
**Created:** 2019-01-23 14:51 UTC
**Views:** 1493
**Replies:** 6
**URL:** https://openhealthhub.org/t/mapping-gp-medications-to-a-fhir-resource-profile/1976

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## Post #1 by @Nano

Hi All,

We are a system that currently stores GP data from different GP source systems. We want to be able map this data to a FHIR Medications resource profile.
We are unsure which profile we should be using. Could you please advice.
We believe it is MedicationStatement but we are not sure

Thanks

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## Post #2 by @mayfield.g.kev

This is a link to a similar discussion https://www.openhealthhub.org/t/medicationadministration-the-administrated-drugs-vs-full-list/1971/19

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## Post #3 by @Nano

Hi Kev,

Thanks for that link. Just to confirm what its indicating:

As our system is downstream of the GP systems and acting as a kind-of "warehouse", we should use the Medication Statement profile over the Dispense/Order/Request?

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## Post #4 by @ian

That would be what was intended by the Care Connect profiling work. You should only use MedicatoinRequest if you are building an actual prescribing system.

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## Post #5 by @mayfield.g.kev

What do you mean by kind of warehouse?
If it’s a near real time/Caché then I may steer towards MedxoationRequest especially on a rest interface or messaging.
As the underlying system (Gp), probably Via mig, is a prescribing system.

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## Post #6 by @Nano

Thank you for the responses, it seems MedicationStatement is the most suitable for GP data we currently hold. 

Having looked at the MedicationStatement profile, I have come across some issues while trying to do the mapping, there is no obvious field to store a patient's prescription quantity and units for example "100 tablets". Under the **Dosage** field, there is **maxDosePerPeriod, maxDosePerAdministration and maxDosePerLifetime**. These fields do not seem suitable to store the total quantity/units prescribed for a patient, they are too specific whereas I'm looking to a generic field to be able to store a patient's prescription quantity/units. Where could the quantity and units be placed and perhaps clarification of what the above fields mean, would be appreciated.

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## Post #7 by @riksmithies

hi as well as those you mention there is the DoseAndRate part. Bear in mind that saying "100 tablets" isn't really a dose, because you are not saying what amount in each tablet.

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**Canonical:** https://openhealthhub.org/t/mapping-gp-medications-to-a-fhir-resource-profile/1976
**Original content:** https://openhealthhub.org/t/mapping-gp-medications-to-a-fhir-resource-profile/1976