Personal Health Device Implementation Guide
2.0.0-draft3 - International flag

Personal Health Device Implementation Guide, published by HL7 International / Health Care Devices. This guide is not an authorized publication; it is the continuous build for version 2.0.0-draft3 built by the FHIR (HL7® FHIR® Standard) CI Build. This version is based on the current content of https://github.com/HL7/phd/ and changes regularly. See the Directory of published versions

Extension: Numeric Accuracy

Official URL: http://hl7.org/fhir/uv/phd/StructureDefinition/Accuracy Version: 2.0.0-draft3
Standards status: Draft Draft as of 2025-10-23 Maturity Level: 1 Computable Name: Accuracy

The accuracy of a measurable quantity.

Context of Use

Usage info

Usages:

You can also check for usages in the FHIR IG Statistics

Formal Views of Extension Content

Description Differentials, Snapshots, and other representations.

NameFlagsCard.TypeDescription & Constraints    Filter: Filtersdoco
.. Extension 0..1 Extension Numeric Accuracy
... extension 0..0
... url 1..1 uri "http://hl7.org/fhir/uv/phd/StructureDefinition/Accuracy"
... value[x] 1..1 Quantity Value of extension
.... value 0..1 decimal Numerical value (with implicit precision)
.... unit 0..1 string Unit representation

doco Documentation for this format
NameFlagsCard.TypeDescription & Constraints    Filter: Filtersdoco
.. Extension 0..1 Extension Numeric Accuracy
... id 0..1 string Unique id for inter-element referencing
... extension 0..0
... url 1..1 uri "http://hl7.org/fhir/uv/phd/StructureDefinition/Accuracy"
.... id 0..1 string Unique id for inter-element referencing
.... extension 0..* Extension Additional content defined by implementations
Slice: Unordered, Open by value:url
.... value Σ 0..1 decimal Numerical value (with implicit precision)
.... comparator ?!Σ 0..1 code < | <= | >= | > - how to understand the value
Binding: QuantityComparator (required): How the Quantity should be understood and represented.
.... unit Σ 0..1 string Unit representation
.... system ΣC 0..1 uri System that defines coded unit form
.... code Σ 0..1 code Coded form of the unit

doco Documentation for this format

Terminology Bindings

Path Status Usage ValueSet Version Source
Extension.value[x].comparator Base required QuantityComparator 📍4.0.1 FHIR Std.

Constraints

Id Grade Path(s) Description Expression
ele-1 error **ALL** elements All FHIR elements must have a @value or children hasValue() or (children().count() > id.count())
ext-1 error **ALL** extensions Must have either extensions or value[x], not both extension.exists() != value.exists()

Summary

Simple Extension with the type Quantity: The accuracy of a measurable quantity.

Maturity: 1

Differential ViewDifferential View

NameFlagsCard.TypeDescription & Constraints    Filter: Filtersdoco
.. Extension 0..1 Extension Numeric Accuracy
... extension 0..0
... url 1..1 uri "http://hl7.org/fhir/uv/phd/StructureDefinition/Accuracy"
... value[x] 1..1 Quantity Value of extension
.... value 0..1 decimal Numerical value (with implicit precision)
.... unit 0..1 string Unit representation

doco Documentation for this format

Snapshot View

NameFlagsCard.TypeDescription & Constraints    Filter: Filtersdoco
.. Extension 0..1 Extension Numeric Accuracy
... id 0..1 string Unique id for inter-element referencing
... extension 0..0
... url 1..1 uri "http://hl7.org/fhir/uv/phd/StructureDefinition/Accuracy"
.... id 0..1 string Unique id for inter-element referencing
.... extension 0..* Extension Additional content defined by implementations
Slice: Unordered, Open by value:url
.... value Σ 0..1 decimal Numerical value (with implicit precision)
.... comparator ?!Σ 0..1 code < | <= | >= | > - how to understand the value
Binding: QuantityComparator (required): How the Quantity should be understood and represented.
.... unit Σ 0..1 string Unit representation
.... system ΣC 0..1 uri System that defines coded unit form
.... code Σ 0..1 code Coded form of the unit

doco Documentation for this format

Terminology Bindings

Path Status Usage ValueSet Version Source
Extension.value[x].comparator Base required QuantityComparator 📍4.0.1 FHIR Std.

Constraints

Id Grade Path(s) Description Expression
ele-1 error **ALL** elements All FHIR elements must have a @value or children hasValue() or (children().count() > id.count())
ext-1 error **ALL** extensions Must have either extensions or value[x], not both extension.exists() != value.exists()

Summary

Simple Extension with the type Quantity: The accuracy of a measurable quantity.

Maturity: 1

 

Other representations of profile: CSV, Excel, Schematron