身體質量指數-Observation BMI PAD - 身體活動與飲食實作指引 v0.1.0

身體活動與飲食實作指引
0.1.0 - ci-build

身體活動與飲食實作指引, published by 衛生福利部國民健康署. This guide is not an authorized publication; it is the continuous build for version 0.1.0 built by the FHIR (HL7® FHIR® Standard) CI Build. This version is based on the current content of https://github.com/hpapa2025/pad/ and changes regularly. See the Directory of published versions

Resource Profile: 身體質量指數-Observation BMI PAD

Official URL: https://www.hpa.gov.tw/pad/StructureDefinition/Observation-bmi-pad				Version: 0.1.0
Active as of 2025-09-10				Computable Name: ObservationBMIPAD

此身體質量指數-Observation BMI PAD Profile說明PAD IG如何進一步定義臺灣核心-身體質量指數（TW Core Observation Body BMI） Profile以呈現與身體數值之身體質量指數的詳細記錄。

Usages:

Use this Profile: 身體數值-Bundle Body Metrics PAD and 自填調查表-Bundle Health Self Assessment PAD
Examples for this Profile: Observation/obs-bmi
CapabilityStatements using this Profile: 身體活動與飲食-用戶端(PAD Client) and 身體活動與飲食-伺服端(PAD Server)

You can also check for usages in the FHIR IG Statistics

Formal Views of Profile Content

Description of Profiles, Differentials, Snapshots and how the different presentations work.

Key Elements Table
Differential Table
Snapshot Table
Statistics/References
All

Name	Flags	Card.	Type	Description & Constraints Filter: Bindings Constraints Obligations
Observation	C	0..*	TWCoreObservationBMI	FHIR Body Mass Index (BMI) Profile Constraints: obs-6, obs-7, vs-2
implicitRules	?!Σ	0..1	uri	A set of rules under which this content was created
modifierExtension	?!	0..*	Extension	Extensions that cannot be ignored
status	?!SΣ	1..1	code	registered \| preliminary \| final \| amended + Binding: ObservationStatus (required) Required Pattern: final
Slices for category	S	1..1	CodeableConcept	Classification of type of observation Slice: Unordered, Open by value:coding.code, value:coding.system Binding: ObservationCategoryCodes (preferred): Codes for high level observation categories.
category:VSCat	S	1..1	CodeableConcept	Classification of type of observation Binding: ObservationCategoryCodes (preferred): Codes for high level observation categories. Required Pattern: At least the following
id		0..1	string	Unique id for inter-element referencing
extension		0..*	Extension	Additional content defined by implementations
coding		1..*	Coding	Code defined by a terminology system Fixed Value: (Complex)
id		0..1	string	Unique id for inter-element referencing
extension		0..*	Extension	Additional content defined by implementations
system		1..1	uri	Identity of the terminology system Fixed Value: http://terminology.hl7.org/CodeSystem/observation-category
version		0..1	string	Version of the system - if relevant
code		1..1	code	Symbol in syntax defined by the system Fixed Value: vital-signs
display		0..1	string	Representation defined by the system
userSelected		0..1	boolean	If this coding was chosen directly by the user
text		0..1	string	Plain text representation of the concept
coding	SΣ	1..*	Coding	Code defined by a terminology system
system	SΣ	1..1	uri	Identity of the terminology system Fixed Value: http://terminology.hl7.org/CodeSystem/observation-category
code	SΣ	1..1	code	Symbol in syntax defined by the system Fixed Value: vital-signs
code	S	1..1	CodeableConceptTW	身體質量指數(BMI) Binding: VitalSigns (extensible): This identifies the vital sign result type.
Slices for coding	Σ	1..1	Coding	Code defined by a terminology system Slice: Unordered, Closed by value:code, value:system
coding:BMICode	Σ	1..1	Coding	Code defined by a terminology system Required Pattern: At least the following
id		0..1	string	Unique id for inter-element referencing
extension		0..*	Extension	Additional content defined by implementations
system		1..1	uri	Identity of the terminology system Fixed Value: http://loinc.org
version		0..1	string	Version of the system - if relevant
code		1..1	code	Symbol in syntax defined by the system Fixed Value: 39156-5
display		0..1	string	Representation defined by the system
userSelected		0..1	boolean	If this coding was chosen directly by the user
system	Σ	1..1	uri	Identity of the terminology system Fixed Value: http://loinc.org
code	Σ	1..1	code	Symbol in syntax defined by the system Fixed Value: 39156-5
subject	SΣ	1..1	Reference(使用者資訊-Patient PAD)	Who and/or what the observation is about
effective[x]	SΣC	1..1	dateTime	Often just a dateTime for Vital Signs Constraints: vs-1
performer	Σ	0..*	Reference(使用者資訊-Patient PAD)	Who is responsible for the observation
Slices for value[x]	SΣC	1..1	Quantity	Vital Signs value are recorded using the Quantity data type. For supporting observations such as Cuff size could use other datatypes such as CodeableConcept. Slice: Unordered, Closed by type:$this
value[x]:valueQuantity	SΣC	1..1	Quantity	紀錄使用者BMI及使用者BMI單位
value	SΣ	1..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	SΣ	1..1	string	Unit representation Required Pattern: kg/m2
system	SΣC	1..1	uri	System that defines coded unit form Fixed Value: http://unitsofmeasure.org
code	SΣ	1..1	code	Coded responses from the common UCUM units for vital signs value set. Fixed Value: kg/m2
dataAbsentReason	SC	0..1	CodeableConcept	Why the result is missing Binding: DataAbsentReason (extensible): Codes specifying why the result (Observation.value[x]) is missing.
component	SΣC	0..*	BackboneElement	Used when reporting systolic and diastolic blood pressure. Constraints: vs-3
modifierExtension	?!Σ	0..*	Extension	Extensions that cannot be ignored even if unrecognized
code	SΣ	1..1	CodeableConcept	Type of component observation (code / type) Binding: VitalSigns (extensible): This identifies the vital sign result type.
value[x]	SΣC	0..1		Vital Sign Value recorded with UCUM Binding: VitalSignsUnits (extensible): Common UCUM units for recording Vital Signs.
valueQuantity			Quantity
valueCodeableConcept			CodeableConcept
valueString			string
valueBoolean			boolean
valueInteger			integer
valueRange			Range
valueRatio			Ratio
valueSampledData			SampledData
valueTime			time
valueDateTime			dateTime
valuePeriod			Period
dataAbsentReason	SC	0..1	CodeableConcept	Why the component result is missing Binding: DataAbsentReason (extensible): Codes specifying why the result (Observation.value[x]) is missing.
Documentation for this format

Terminology Bindings

Path	Conformance	ValueSet / Code	URI
Observation.status	required	Pattern Value: final `http://hl7.org/fhir/ValueSet/observation-status\|4.0.1` From the FHIR Standard
Observation.category	preferred	ObservationCategoryCodes `http://hl7.org/fhir/ValueSet/observation-category` From the FHIR Standard
Observation.category:VSCat	preferred	Pattern Value: vital-signs `http://hl7.org/fhir/ValueSet/observation-category` From the FHIR Standard
Observation.code	extensible	VitalSigns `http://hl7.org/fhir/ValueSet/observation-vitalsignresult` From the FHIR Standard
Observation.value[x]:valueQuantity.comparator	required	QuantityComparator `http://hl7.org/fhir/ValueSet/quantity-comparator\|4.0.1` From the FHIR Standard
Observation.dataAbsentReason	extensible	DataAbsentReason `http://hl7.org/fhir/ValueSet/data-absent-reason` From the FHIR Standard
Observation.component.code	extensible	VitalSigns `http://hl7.org/fhir/ValueSet/observation-vitalsignresult` From the FHIR Standard
Observation.component.value[x]	extensible	VitalSignsUnits `http://hl7.org/fhir/ValueSet/ucum-vitals-common\|4.0.1` From the FHIR Standard
Observation.component.dataAbsentReason	extensible	DataAbsentReason `http://hl7.org/fhir/ValueSet/data-absent-reason` From the FHIR Standard

Constraints

Id	Grade	Path(s)	Details	Requirements
dom-2	error	Observation	If the resource is contained in another resource, it SHALL NOT contain nested Resources : contained.contained.empty()
dom-3	error	Observation	If the resource is contained in another resource, it SHALL be referred to from elsewhere in the resource or SHALL refer to the containing resource : contained.where((('#'+id in (%resource.descendants().reference \| %resource.descendants().as(canonical) \| %resource.descendants().as(uri) \| %resource.descendants().as(url))) or descendants().where(reference = '#').exists() or descendants().where(as(canonical) = '#').exists() or descendants().where(as(canonical) = '#').exists()).not()).trace('unmatched', id).empty()
dom-4	error	Observation	If a resource is contained in another resource, it SHALL NOT have a meta.versionId or a meta.lastUpdated : contained.meta.versionId.empty() and contained.meta.lastUpdated.empty()
dom-5	error	Observation	If a resource is contained in another resource, it SHALL NOT have a security label : contained.meta.security.empty()
dom-6	best practice	Observation	A resource should have narrative for robust management : text.`div`.exists()
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()
obs-6	error	Observation	dataAbsentReason SHALL only be present if Observation.value[x] is not present : dataAbsentReason.empty() or value.empty()
obs-7	error	Observation	If Observation.code is the same as an Observation.component.code then the value element associated with the code SHALL NOT be present : value.empty() or component.code.where(coding.intersect(%resource.code.coding).exists()).empty()
vs-1	error	Observation.effective[x]	if Observation.effective[x] is dateTime and has a value then that value shall be precise to the day : $this is dateTime implies $this.toString().length() >= 10
vs-2	error	Observation	If there is no component or hasMember element then either a value[x] or a data absent reason must be present. : (component.empty() and hasMember.empty()) implies (dataAbsentReason.exists() or value.exists())
vs-3	error	Observation.component	If there is no a value a data absent reason must be present : value.exists() or dataAbsentReason.exists()

This structure is derived from TWCoreObservationBMI

Name	Card.	Type	Description & Constraints Filter: Bindings Constraints Obligations
Observation		TWCoreObservationBMI
status	1..1	code	registered \| preliminary \| final \| amended + Required Pattern: final
category	1..1	CodeableConcept	Classification of type of observation
Slices for category			Content/Rules for all slices
category:VSCat	1..1	CodeableConcept	Classification of type of observation Required Pattern: At least the following
coding	1..*	Coding	Code defined by a terminology system Fixed Value: (Complex)
system	1..1	uri	Identity of the terminology system Fixed Value: http://terminology.hl7.org/CodeSystem/observation-category
code	1..1	code	Symbol in syntax defined by the system Fixed Value: vital-signs
code
Slices for coding	1..1	Coding	Code defined by a terminology system Slice: Unordered, Closed by value:code, value:system
coding:BMICode	1..1	Coding	Code defined by a terminology system Required Pattern: At least the following
system	1..1	uri	Identity of the terminology system Fixed Value: http://loinc.org
code	1..1	code	Symbol in syntax defined by the system Fixed Value: 39156-5
subject	1..1	Reference(使用者資訊-Patient PAD)	Who and/or what the observation is about
effective[x]	1..1	dateTime	Often just a dateTime for Vital Signs
performer	0..*	Reference(使用者資訊-Patient PAD)	Who is responsible for the observation
value[x]	1..1	Quantity	Vital Signs value are recorded using the Quantity data type. For supporting observations such as Cuff size could use other datatypes such as CodeableConcept.
Slices for value[x]			Content/Rules for all slices
value[x]:valueQuantity	1..1	Quantity	紀錄使用者BMI及使用者BMI單位
unit	1..1	string	Unit representation Required Pattern: kg/m2
Documentation for this format