FQL is a query language that allows you to retrieve, filter and project data from any data source containing FHIR Resources. It brings the power of three existing languages together: SQL, JSON and FhirPath. It allows you to create tables and is useful for gaining insight and perform quality control.
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PeriodOfUse
Search based on the PeriodOfUse concept captured in the ext-TimeInterval.Period extension in the MedicationRequest and MedicationDispense resources, and in the .effectivePeriod element in the MedicationStatement resource.
This SearchParameter searches the FHIR data type Period in the TimeInterval.Period extension, which is added to profiles on MedicationRequest and MedicationDispense resources, and in the .effectivePeriod element in the MedicationStatement resource. This SearchParameter defines a special parameter search as described by the FHIR specification: https://hl7.org/fhir/r4/search.html#special. Servers are expected to take the ext-TimeInterval.Duration modifierExtension into account when processing a client's search. This means that either Period.start AND Period.end or Period.start AND Duration or Period.end AND Duration are used to determine the search results. After TimeInterval.Duration has been taken into account, the search parameter functions as a date parameter search: https://hl7.org/fhir/r4/search.html#date. To illustrate the expected behavior: if a Period.start and a Duration are known, but not the Period.end, the Duration should be added to the Period.start date to calculate the Period.end. The calculated Period.end date is then used to determine the search results.
Resources shown in this project should be considered unstable and not suited for immediate implementation. Stable versions can be found in the released packages. Implementation guides (IGs) that build on the packages in this project, may be found at informatiestandaarden.nictiz.nl. Each IG explicitly calls out which package version to use. Always consult the implementation guide for the correct package.
- type SearchParameter
- FHIR R4
- status prerelease
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version2.0.0-rc.3
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Documentation:
https://simplifier.net/medicationprocess/period-of-use
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