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This is a frozen snapshot of the FHIR specification created for the purpose of balloting the GAO implementation Guide. It includes draft changes that may be part of the future DSTU 2.1 release but further change is expected. Readers should focus solely on the GAO implementation content, and FHIR DSTU 2 for other purposes.

4.29.12 Observation HL7 Extensions

Defines common extensions used with or related to the Observation resource

4.29.12.1 Content

Extensions:
observation-bodyPosition	The body position during the observation : The position of the body when the observation was done, e.g. standing, sitting. To be used only when the body position in not precoordinated in the observation code.
observation-delta	Qualitative change or trend in the measurement : The qualitative change in the value relative to the previous measurement. Usually only recorded if the change is clinically significant.
observation-focal-subject	Focal Subject : The focus of an observation when not the patient of record (i.e different from Observation.subject). For example, the focal subject may be a fetus, or a donor.