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An absolute measurement range is set up by adding an ehealth-referenceRange structure to ServiceRequest.ehealth-referenceRange where:

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For component-based measurements (e.g. systolic/diastolic blood pressure) it is necessary to specify which component a reference range belongs to. This is done by adding an additional Coding to ehealth-referenceRange.type from https://docs.ehealth.sundhed.dk/latest/igfhir/ValueSet-ehealth-observation-codes.html

Setting up Relative Measurement Ranges and a Reference Base

A relative measurement range is set up by adding an ehealth-referenceRange structure to ServiceRequest.ehealth-referenceRange where:

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To add a designated reference base, create a FHIR Goal resource with:

• status: accepted

• description: A Coding with:

  • code: reference-value

  • system: http://ehealth.sundhed.dk/cs/goal-description

• subject: Reference to Patient

• startDate: A datetime representing the starting point at which this reference base is applicable.

• target.measure: Coding (the same as code in the ServiceRequest as the relative measurement range is defined in)

• target.detailQuantity: A Quantity containing the reference base value

• addresses: Reference to ServiceRequest (the same ServiceRequest as the relative measurement range is defined in)

• addresses: Reference to the Observation from which the value in target.detailQuantity has been copied (if that is the case)

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