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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Laterality
Body side of the body location, if needed to distinguish from a similar location on the other side of the body.
The laterality element is part of BodyLocation, a flexible structure that allows the location to be determined by a single code, or a code plus laterality and/or orientation. The body location can also be specified in relation to one or more body landmarks. SNOMED CT is used in all cases.
- Code only: The code should include (precoordinate) laterality and/orientation to the degree necessary to completely specify the body location.
- Code plus laterality and/or orientation: The basic code augmented by codes specifying the body side and/or anatomical orientation.
- Relation to landmark: The location relative to a landmark is specified by:
- Establishing the location and type of landmark using a body site code and optional laterality/orientation, and
- Specifying the direction and distance from the landmark to the body location.
Note that BodyLocation is a data type (a reusable structure), not a stand-alone entity. The concept is similar to how a postal address can apply to a person, location, or organization. This contrasts with FHIR's stand-alone BodySite (aka BodyStructure in r4) which 'is not ... intended for describing the type of anatomical location but rather a specific body site on a specific patient' (FHIR 3.5).
- type Extension
- FHIR R4
- status Draft
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version0.1.0
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