This structure is derived from Observation.

Summary

Mandatory: 5 elements
Must-Support: 12 elements
Prohibited: 4 elements

This indicates the differences between this profile and the base Observation structure.

Name	Flags	Card.	Type	Description & Constraints
Observation		0..*	Observation	Measurements and simple assertions
identifier	S	0..*	Identifier	Business Identifier for observation
status	S	1..1	code	registered | preliminary | final | amended +
code	S	1..1	CodeableConcept	Type of observation (code / type)
subject	S	1..1	Reference(Patient | Device)	Who and/or what the observation is about
encounter		0..0
effectiveDateTime	S	1..1	dateTime	Clinically relevant time/time-period for observation
issued		0..0
value[x]	S	0..1		Actual result
valueQuantity			Quantity
valueCodeableConcept			CodeableConcept
valueString			string
valueRange			Range
valueRatio			Ratio
valueSampledData			SampledData
valueTime			time
valueDateTime			dateTime
valuePeriod			Period
dataAbsentReason		0..0
interpretation		0..1	CodeableConcept	High, low, normal, etc.
note		0..*	Annotation	Comments about the observation
bodySite	S	0..1	CodeableConcept	Observed body part
method	S	0..1	CodeableConcept	How it was done
specimen		0..0
device	S	1..1	Reference(DeviceMetric)	(Measurement) Device
referenceRange	S	0..1	BackboneElement	Provides guide for interpretation
hasMember	S	0..*	Reference(Observation)	Related resource that belongs to the Observation group
derivedFrom	S	0..*	Reference(Observation)	Related resource from which the observation is made
Documentation for this format

This provides the consolidated view (aka snapshot) of the profile after applying the changes in this profile to the base Observation structure.

Name	Flags	Card.	Type	Description & Constraints
Observation	C	0..*	Observation	Measurements and simple assertions
id	Σ	0..1	id	Logical id of this artifact
meta	Σ	0..1	Meta	Metadata about the resource
implicitRules	?!Σ	0..1	uri	A set of rules under which this content was created
language		0..1	code	Language of the resource content Binding: Common Languages (preferred): IETF language tag Additional Bindings Purpose All Languages Max Binding
text		0..1	Narrative	Text summary of the resource, for human interpretation
contained		0..*	Resource	Contained, inline Resources
extension		0..*	Extension	Additional content defined by implementations
modifierExtension	?!Σ	0..*	Extension	Extensions that cannot be ignored
identifier	SΣ	0..*	Identifier	Business Identifier for observation
instantiates[x]	Σ	0..1	canonical(ObservationDefinition), Reference(ObservationDefinition)	Instantiates FHIR ObservationDefinition
basedOn	Σ	0..*	Reference(CarePlan | DeviceRequest | ImmunizationRecommendation | MedicationRequest | NutritionOrder | ServiceRequest)	Fulfills plan, proposal or order
triggeredBy		0..*	BackboneElement	Triggering observation(s)
id		0..1	string	Unique id for inter-element referencing
extension		0..*	Extension	Additional content defined by implementations
modifierExtension	?!Σ	0..*	Extension	Extensions that cannot be ignored even if unrecognized
observation	Σ	1..1	Reference(Observation)	Triggering observation
type	Σ	1..1	code	reflex | repeat | re-run Binding: triggeredBytype (required): The type of TriggeredBy Observation.
reason		0..1	string	Reason that the observation was triggered
partOf	Σ	0..*	Reference(MedicationAdministration | MedicationDispense | MedicationUsage | Procedure | Immunization | ImagingStudy | GenomicStudy)	Part of referenced event
status	?!SΣ	1..1	code	registered | preliminary | final | amended + Binding: ObservationStatus (required): Codes providing the status of an observation.
category		0..*	CodeableConcept	Classification of type of observation Binding: Observation Category Codes (preferred): Codes for high level observation categories.
code	SΣ	1..1	CodeableConcept	Type of observation (code / type) Binding: LOINC Codes (example): Codes identifying names of simple observations.
subject	SΣ	1..1	Reference(Patient | Device)	Who and/or what the observation is about
focus	Σ	0..*	Reference(Resource)	What the observation is about, when it is not about the subject of record
Slices for effective[x]	Σ	1..1	dateTime	Clinically relevant time/time-period for observation Slice: Unordered, Closed by type:$this
effective[x]:effectiveDateTime	SΣ	1..1	dateTime	Clinically relevant time/time-period for observation
performer	Σ	0..*	Reference(Practitioner | PractitionerRole | Organization | CareTeam | Patient | RelatedPerson)	Who is responsible for the observation
value[x]	SΣC	0..1		Actual result
valueQuantity			Quantity
valueCodeableConcept			CodeableConcept
valueString			string
valueRange			Range
valueRatio			Ratio
valueSampledData			SampledData
valueTime			time
valueDateTime			dateTime
valuePeriod			Period
interpretation		0..1	CodeableConcept	High, low, normal, etc. Binding: Observation Interpretation Codes (extensible): Codes identifying interpretations of observations.
note		0..*	Annotation	Comments about the observation
bodySite	S	0..1	CodeableConcept	Observed body part Binding: SNOMED CT Body Structures (example): SNOMED CT Body site concepts
bodyStructure	C	0..1	Reference(BodyStructure)	Observed body structure
method	S	0..1	CodeableConcept	How it was done Binding: Observation Methods (example): Methods for simple observations.
device	S	1..1	Reference(DeviceMetric)	(Measurement) Device
referenceRange	SC	0..1	BackboneElement	Provides guide for interpretation
id		0..1	string	Unique id for inter-element referencing
extension		0..*	Extension	Additional content defined by implementations
modifierExtension	?!Σ	0..*	Extension	Extensions that cannot be ignored even if unrecognized
low	C	0..1	SimpleQuantity	Low Range, if relevant
high	C	0..1	SimpleQuantity	High Range, if relevant
normalValue	C	0..1	CodeableConcept	Normal value, if relevant Binding: Observation Reference Range Normal Value Codes (extensible): Codes identifying the normal value of the observation.
type		0..1	CodeableConcept	Reference range qualifier Binding: Observation Reference Range Meaning Codes (preferred): Code for the meaning of a reference range.
appliesTo		0..*	CodeableConcept	Reference range population Binding: Observation Reference Range Applies To Codes (example): Codes identifying the population the reference range applies to.
age		0..1	Range	Applicable age range, if relevant
text		0..1	string	Text based reference range in an observation
hasMember	SΣ	0..*	Reference(Observation)	Related resource that belongs to the Observation group
derivedFrom	SΣ	0..*	Reference(Observation)	Related resource from which the observation is made
component	Σ	0..*	BackboneElement	Component results
id		0..1	string	Unique id for inter-element referencing
extension		0..*	Extension	Additional content defined by implementations
modifierExtension	?!Σ	0..*	Extension	Extensions that cannot be ignored even if unrecognized
code	Σ	1..1	CodeableConcept	Type of component observation (code / type) Binding: LOINC Codes (example): Codes identifying names of simple observations.
value[x]	Σ	0..1		Actual component result
valueQuantity			Quantity
valueCodeableConcept			CodeableConcept
valueString			string
valueBoolean			boolean
valueInteger			integer
valueRange			Range
valueRatio			Ratio
valueSampledData			SampledData
valueTime			time
valueDateTime			dateTime
valuePeriod			Period
valueAttachment			Attachment
dataAbsentReason	C	0..1	CodeableConcept	Why the component result is missing Binding: DataAbsentReason (extensible): Codes specifying why the result (Observation.value[x]) is missing.
interpretation		0..*	CodeableConcept	High, low, normal, etc. Binding: Observation Interpretation Codes (extensible): Codes identifying interpretations of observations.
referenceRange		0..*	See referenceRange (Observation)	Provides guide for interpretation of component result
Documentation for this format

<!-- Device Metric Observation Profile -->

<Observation xmlns="http://hl7.org/fhir"
>
  <!-- from Element: extension -->
 <id value="[id]"/><!-- 0..1 Logical id of this artifact -->
 <meta><!-- I 0..1 Meta Metadata about the resource --></meta>
 <implicitRules value="[uri]"/><!-- I 0..1 A set of rules under which this content was created -->
 <language value="[code]"/><!-- I 0..1 Language of the resource content   -->
 <text><!-- I 0..1 Narrative 
     Text summary of the resource, for human interpretation --></text>
 <contained><!-- 0..* Resource Contained, inline Resources --></contained>
 <modifierExtension><!-- I 0..* Extension  Extensions that cannot be ignored  --></modifierExtension>
 <identifier><!-- I 0..* Identifier 
     Business Identifier for observation --></identifier>
 <instantiates[x]><!-- I 0..1 canonical|Reference(ObservationDefinition) 
     Instantiates FHIR ObservationDefinition --></instantiates[x]>
 <basedOn><!-- I 0..* Reference(CarePlan) Fulfills plan, proposal or order --></basedOn>
 <triggeredBy> I 0..* BackboneElement  <!-- I 0..* Triggering observation(s) -->
  <modifierExtension><!-- I 0..* Extension  Extensions that cannot be ignored even if unrecognized  --></modifierExtension>
  <observation><!-- I 1..1 Reference(Observation) 
      Triggering observation --></observation>
  <type value="[code]"/><!-- I 1..1 reflex | repeat | re-run   -->
  <reason value="[string]"/><!-- I 0..1 Reason that the observation was triggered -->
 </triggeredBy>
 <partOf><!-- I 0..* Reference(MedicationAdministration) Part of referenced event --></partOf>
 <status value="[code]"/><!-- I 1..1 registered | preliminary | final | amended +   -->
 <category><!-- I 0..* CodeableConcept Classification of  type of observation   --></category>
 <code><!-- I 1..1 CodeableConcept Type of observation (code / type)   --></code>
 <subject><!-- I 1..1 Reference(Patient) 
     Who and/or what the observation is about --></subject>
 <focus><!-- I 0..* Reference(Resource) 
     What the observation is about, when it is not about the subject of record --></focus>
 <encounter><!-- I 0..0 Reference(Encounter) 
     Healthcare event during which this observation is made --></encounter>
 <-- effectiveDateTime sliced by type:$this  in the specified orderClosed-->
 <effectiveDateTime value="[dateTime]"/><!-- I 1..1 Clinically relevant time/time-period for observation -->
 <issued value="[instant]"/><!-- I 0..0 Date/Time this version was made available -->
 <performer><!-- I 0..* Reference(Practitioner) 
     Who is responsible for the observation --></performer>
 <value[x]><!-- I 0..1 Quantity|CodeableConcept|string|Range|Ratio|
   SampledData|time|dateTime|Period Actual result --></value[x]>
 <dataAbsentReason><!-- I 0..0 CodeableConcept Why the result is missing   --></dataAbsentReason>
 <interpretation><!-- I 0..1 CodeableConcept High, low, normal, etc.   --></interpretation>
 <note><!-- I 0..* Annotation Comments about the observation --></note>
 <bodySite><!-- I 0..1 CodeableConcept Observed body part   --></bodySite>
 <bodyStructure><!-- I 0..1 Reference(BodyStructure) Observed body structure --></bodyStructure>
 <method><!-- I 0..1 CodeableConcept How it was done   --></method>
 <specimen><!-- I 0..0 Reference(Specimen) Specimen used for this observation --></specimen>
 <device><!-- I 1..1 Reference(DeviceMetric) (Measurement) Device --></device>
 <referenceRange> I 0..1 BackboneElement  <!-- I 0..1 Provides guide for interpretation -->
  <modifierExtension><!-- I 0..* Extension  Extensions that cannot be ignored even if unrecognized  --></modifierExtension>
  <low><!-- I 0..1 Quantity 
      Low Range, if relevant --></low>
  <high><!-- I 0..1 Quantity 
      High Range, if relevant --></high>
  <normalValue><!-- I 0..1 CodeableConcept Normal value, if relevant   --></normalValue>
  <type><!-- I 0..1 CodeableConcept Reference range qualifier   --></type>
  <appliesTo><!-- I 0..* CodeableConcept Reference range population   --></appliesTo>
  <age><!-- I 0..1 Range 
      Applicable age range, if relevant --></age>
  <text value="[string]"/><!-- I 0..1 Text based reference range in an observation -->
 </referenceRange>
 <hasMember><!-- I 0..* Reference(Observation) 
     Related resource that belongs to the Observation group --></hasMember>
 <derivedFrom><!-- I 0..* Reference(Observation) 
     Related resource from which the observation is made --></derivedFrom>
 <component> I 0..* BackboneElement  <!-- I 0..* Component results -->
  <modifierExtension><!-- I 0..* Extension  Extensions that cannot be ignored even if unrecognized  --></modifierExtension>
  <code><!-- I 1..1 CodeableConcept Type of component observation (code / type)   --></code>
  <value[x]><!-- I 0..1 Quantity|CodeableConcept|string|
    boolean|integer|Range|Ratio|SampledData|time|dateTime|Period|Attachment 
      Actual component result --></value[x]>
  <dataAbsentReason><!-- I 0..1 CodeableConcept Why the component result is missing   --></dataAbsentReason>
  <interpretation><!-- I 0..* CodeableConcept High, low, normal, etc.   --></interpretation>
  <referenceRange><!-- See http://hl7.org/fhir/StructureDefinition/Observation#Observation.referenceRange  Provides guide for interpretation of component result --></referenceRange>
 </component>
</Observation>

{ // Device Metric Observation Profile
  // from Element: extension
    "meta" : { Meta }, // IMetadata about the resource
    "implicitRules" : "<uri>", // IA set of rules under which this content was created
    "language" : "<code>", // ILanguage of the resource content
    "text" : { Narrative }, // IText summary of the resource, for human interpretation
    "contained" : [{ Resource }], //Contained, inline Resources
    "modifierExtension" : [{ Extension }], // IExtensions that cannot be ignored
    "identifier" : [{ Identifier }], // IBusiness Identifier for observation
  // value[x]: Instantiates FHIR ObservationDefinition. One of these 2:
    "instantiatesCanonical" : "<canonical>", // IInstantiates FHIR ObservationDefinition
    "instantiatesReference" : { Reference(ObservationDefinition) }, // IInstantiates FHIR ObservationDefinition
    "basedOn" : [{ Reference(CarePlan) }], // IFulfills plan, proposal or order
    "triggeredBy" : [{ BackboneElement }], // ITriggering observation(s)
    "partOf" : [{ Reference(MedicationAdministration) }], // IPart of referenced event
    "status" : "<code>", // I R! registered | preliminary | final | amended +
    "category" : [{ CodeableConcept }], // IClassification of  type of observation
    "code" : { CodeableConcept }, // I R! Type of observation (code / type)
    "subject" : { Reference(Patient) }, // I R! Who and/or what the observation is about
    "focus" : [{ Reference(Resource) }], // IWhat the observation is about, when it is not about the subject of record
    "effectiveDateTime" : [ //  sliced by type:$this  in the specified order, Closed 
      { // Clinically relevant time/time-period for observation // I R! 
        // from Element: extension
      }
    ],
    "performer" : [{ Reference(Practitioner) }], // IWho is responsible for the observation
  // value[x]: Actual result. One of these 9:
    "valueQuantity" : { Quantity }, // IActual result
    "valueCodeableConcept" : { CodeableConcept }, // IActual result
    "valueString" : "<string>", // IActual result
    "valueRange" : { Range }, // IActual result
    "valueRatio" : { Ratio }, // IActual result
    "valueSampledData" : { SampledData }, // IActual result
    "valueTime" : "<time>", // IActual result
    "valueDateTime" : "<dateTime>", // IActual result
    "valuePeriod" : { Period }, // IActual result
    "interpretation" : { CodeableConcept }, // IHigh, low, normal, etc.
    "note" : [{ Annotation }], // IComments about the observation
    "bodySite" : { CodeableConcept }, // IObserved body part
    "bodyStructure" : { Reference(BodyStructure) }, // IObserved body structure
    "method" : { CodeableConcept }, // IHow it was done
    "device" : { Reference(DeviceMetric) }, // I R! (Measurement) Device
    "referenceRange" : { BackboneElement }, // IProvides guide for interpretation
    "hasMember" : [{ Reference(Observation) }], // IRelated resource that belongs to the Observation group
    "derivedFrom" : [{ Reference(Observation) }], // IRelated resource from which the observation is made
    "component" : [{ BackboneElement }], // IComponent results
  }

Summary

Mandatory: 5 elements
Must-Support: 12 elements
Prohibited: 4 elements

This provides the consolidated view (aka snapshot) of the profile after applying the changes in this profile to the base Observation structure.

Name	Flags	Card.	Type	Description & Constraints
Observation	C	0..*	Observation	Measurements and simple assertions
id	Σ	0..1	id	Logical id of this artifact
meta	Σ	0..1	Meta	Metadata about the resource
implicitRules	?!Σ	0..1	uri	A set of rules under which this content was created
language		0..1	code	Language of the resource content Binding: Common Languages (preferred): IETF language tag Additional Bindings Purpose All Languages Max Binding
text		0..1	Narrative	Text summary of the resource, for human interpretation
contained		0..*	Resource	Contained, inline Resources
extension		0..*	Extension	Additional content defined by implementations
modifierExtension	?!Σ	0..*	Extension	Extensions that cannot be ignored
identifier	SΣ	0..*	Identifier	Business Identifier for observation
instantiates[x]	Σ	0..1	canonical(ObservationDefinition), Reference(ObservationDefinition)	Instantiates FHIR ObservationDefinition
basedOn	Σ	0..*	Reference(CarePlan | DeviceRequest | ImmunizationRecommendation | MedicationRequest | NutritionOrder | ServiceRequest)	Fulfills plan, proposal or order
triggeredBy		0..*	BackboneElement	Triggering observation(s)
id		0..1	string	Unique id for inter-element referencing
extension		0..*	Extension	Additional content defined by implementations
modifierExtension	?!Σ	0..*	Extension	Extensions that cannot be ignored even if unrecognized
observation	Σ	1..1	Reference(Observation)	Triggering observation
type	Σ	1..1	code	reflex | repeat | re-run Binding: triggeredBytype (required): The type of TriggeredBy Observation.
reason		0..1	string	Reason that the observation was triggered
partOf	Σ	0..*	Reference(MedicationAdministration | MedicationDispense | MedicationUsage | Procedure | Immunization | ImagingStudy | GenomicStudy)	Part of referenced event
status	?!SΣ	1..1	code	registered | preliminary | final | amended + Binding: ObservationStatus (required): Codes providing the status of an observation.
category		0..*	CodeableConcept	Classification of type of observation Binding: Observation Category Codes (preferred): Codes for high level observation categories.
code	SΣ	1..1	CodeableConcept	Type of observation (code / type) Binding: LOINC Codes (example): Codes identifying names of simple observations.
subject	SΣ	1..1	Reference(Patient | Device)	Who and/or what the observation is about
focus	Σ	0..*	Reference(Resource)	What the observation is about, when it is not about the subject of record
Slices for effective[x]	Σ	1..1	dateTime	Clinically relevant time/time-period for observation Slice: Unordered, Closed by type:$this
effective[x]:effectiveDateTime	SΣ	1..1	dateTime	Clinically relevant time/time-period for observation
performer	Σ	0..*	Reference(Practitioner | PractitionerRole | Organization | CareTeam | Patient | RelatedPerson)	Who is responsible for the observation
value[x]	SΣC	0..1		Actual result
valueQuantity			Quantity
valueCodeableConcept			CodeableConcept
valueString			string
valueRange			Range
valueRatio			Ratio
valueSampledData			SampledData
valueTime			time
valueDateTime			dateTime
valuePeriod			Period
interpretation		0..1	CodeableConcept	High, low, normal, etc. Binding: Observation Interpretation Codes (extensible): Codes identifying interpretations of observations.
note		0..*	Annotation	Comments about the observation
bodySite	S	0..1	CodeableConcept	Observed body part Binding: SNOMED CT Body Structures (example): SNOMED CT Body site concepts
bodyStructure	C	0..1	Reference(BodyStructure)	Observed body structure
method	S	0..1	CodeableConcept	How it was done Binding: Observation Methods (example): Methods for simple observations.
device	S	1..1	Reference(DeviceMetric)	(Measurement) Device
referenceRange	SC	0..1	BackboneElement	Provides guide for interpretation
id		0..1	string	Unique id for inter-element referencing
extension		0..*	Extension	Additional content defined by implementations
modifierExtension	?!Σ	0..*	Extension	Extensions that cannot be ignored even if unrecognized
low	C	0..1	SimpleQuantity	Low Range, if relevant
high	C	0..1	SimpleQuantity	High Range, if relevant
normalValue	C	0..1	CodeableConcept	Normal value, if relevant Binding: Observation Reference Range Normal Value Codes (extensible): Codes identifying the normal value of the observation.
type		0..1	CodeableConcept	Reference range qualifier Binding: Observation Reference Range Meaning Codes (preferred): Code for the meaning of a reference range.
appliesTo		0..*	CodeableConcept	Reference range population Binding: Observation Reference Range Applies To Codes (example): Codes identifying the population the reference range applies to.
age		0..1	Range	Applicable age range, if relevant
text		0..1	string	Text based reference range in an observation
hasMember	SΣ	0..*	Reference(Observation)	Related resource that belongs to the Observation group
derivedFrom	SΣ	0..*	Reference(Observation)	Related resource from which the observation is made
component	Σ	0..*	BackboneElement	Component results
id		0..1	string	Unique id for inter-element referencing
extension		0..*	Extension	Additional content defined by implementations
modifierExtension	?!Σ	0..*	Extension	Extensions that cannot be ignored even if unrecognized
code	Σ	1..1	CodeableConcept	Type of component observation (code / type) Binding: LOINC Codes (example): Codes identifying names of simple observations.
value[x]	Σ	0..1		Actual component result
valueQuantity			Quantity
valueCodeableConcept			CodeableConcept
valueString			string
valueBoolean			boolean
valueInteger			integer
valueRange			Range
valueRatio			Ratio
valueSampledData			SampledData
valueTime			time
valueDateTime			dateTime
valuePeriod			Period
valueAttachment			Attachment
dataAbsentReason	C	0..1	CodeableConcept	Why the component result is missing Binding: DataAbsentReason (extensible): Codes specifying why the result (Observation.value[x]) is missing.
interpretation		0..*	CodeableConcept	High, low, normal, etc. Binding: Observation Interpretation Codes (extensible): Codes identifying interpretations of observations.
referenceRange		0..*	See referenceRange (Observation)	Provides guide for interpretation of component result
Documentation for this format

<!-- Device Metric Observation Profile -->

<Observation xmlns="http://hl7.org/fhir"
>
  <!-- from Element: extension -->
 <id value="[id]"/><!-- 0..1 Logical id of this artifact -->
 <meta><!-- I 0..1 Meta Metadata about the resource --></meta>
 <implicitRules value="[uri]"/><!-- I 0..1 A set of rules under which this content was created -->
 <language value="[code]"/><!-- I 0..1 Language of the resource content   -->
 <text><!-- I 0..1 Narrative 
     Text summary of the resource, for human interpretation --></text>
 <contained><!-- 0..* Resource Contained, inline Resources --></contained>
 <modifierExtension><!-- I 0..* Extension  Extensions that cannot be ignored  --></modifierExtension>
 <identifier><!-- I 0..* Identifier 
     Business Identifier for observation --></identifier>
 <instantiates[x]><!-- I 0..1 canonical|Reference(ObservationDefinition) 
     Instantiates FHIR ObservationDefinition --></instantiates[x]>
 <basedOn><!-- I 0..* Reference(CarePlan) Fulfills plan, proposal or order --></basedOn>
 <triggeredBy> I 0..* BackboneElement  <!-- I 0..* Triggering observation(s) -->
  <modifierExtension><!-- I 0..* Extension  Extensions that cannot be ignored even if unrecognized  --></modifierExtension>
  <observation><!-- I 1..1 Reference(Observation) 
      Triggering observation --></observation>
  <type value="[code]"/><!-- I 1..1 reflex | repeat | re-run   -->
  <reason value="[string]"/><!-- I 0..1 Reason that the observation was triggered -->
 </triggeredBy>
 <partOf><!-- I 0..* Reference(MedicationAdministration) Part of referenced event --></partOf>
 <status value="[code]"/><!-- I 1..1 registered | preliminary | final | amended +   -->
 <category><!-- I 0..* CodeableConcept Classification of  type of observation   --></category>
 <code><!-- I 1..1 CodeableConcept Type of observation (code / type)   --></code>
 <subject><!-- I 1..1 Reference(Patient) 
     Who and/or what the observation is about --></subject>
 <focus><!-- I 0..* Reference(Resource) 
     What the observation is about, when it is not about the subject of record --></focus>
 <encounter><!-- I 0..0 Reference(Encounter) 
     Healthcare event during which this observation is made --></encounter>
 <-- effectiveDateTime sliced by type:$this  in the specified orderClosed-->
 <effectiveDateTime value="[dateTime]"/><!-- I 1..1 Clinically relevant time/time-period for observation -->
 <issued value="[instant]"/><!-- I 0..0 Date/Time this version was made available -->
 <performer><!-- I 0..* Reference(Practitioner) 
     Who is responsible for the observation --></performer>
 <value[x]><!-- I 0..1 Quantity|CodeableConcept|string|Range|Ratio|
   SampledData|time|dateTime|Period Actual result --></value[x]>
 <dataAbsentReason><!-- I 0..0 CodeableConcept Why the result is missing   --></dataAbsentReason>
 <interpretation><!-- I 0..1 CodeableConcept High, low, normal, etc.   --></interpretation>
 <note><!-- I 0..* Annotation Comments about the observation --></note>
 <bodySite><!-- I 0..1 CodeableConcept Observed body part   --></bodySite>
 <bodyStructure><!-- I 0..1 Reference(BodyStructure) Observed body structure --></bodyStructure>
 <method><!-- I 0..1 CodeableConcept How it was done   --></method>
 <specimen><!-- I 0..0 Reference(Specimen) Specimen used for this observation --></specimen>
 <device><!-- I 1..1 Reference(DeviceMetric) (Measurement) Device --></device>
 <referenceRange> I 0..1 BackboneElement  <!-- I 0..1 Provides guide for interpretation -->
  <modifierExtension><!-- I 0..* Extension  Extensions that cannot be ignored even if unrecognized  --></modifierExtension>
  <low><!-- I 0..1 Quantity 
      Low Range, if relevant --></low>
  <high><!-- I 0..1 Quantity 
      High Range, if relevant --></high>
  <normalValue><!-- I 0..1 CodeableConcept Normal value, if relevant   --></normalValue>
  <type><!-- I 0..1 CodeableConcept Reference range qualifier   --></type>
  <appliesTo><!-- I 0..* CodeableConcept Reference range population   --></appliesTo>
  <age><!-- I 0..1 Range 
      Applicable age range, if relevant --></age>
  <text value="[string]"/><!-- I 0..1 Text based reference range in an observation -->
 </referenceRange>
 <hasMember><!-- I 0..* Reference(Observation) 
     Related resource that belongs to the Observation group --></hasMember>
 <derivedFrom><!-- I 0..* Reference(Observation) 
     Related resource from which the observation is made --></derivedFrom>
 <component> I 0..* BackboneElement  <!-- I 0..* Component results -->
  <modifierExtension><!-- I 0..* Extension  Extensions that cannot be ignored even if unrecognized  --></modifierExtension>
  <code><!-- I 1..1 CodeableConcept Type of component observation (code / type)   --></code>
  <value[x]><!-- I 0..1 Quantity|CodeableConcept|string|
    boolean|integer|Range|Ratio|SampledData|time|dateTime|Period|Attachment 
      Actual component result --></value[x]>
  <dataAbsentReason><!-- I 0..1 CodeableConcept Why the component result is missing   --></dataAbsentReason>
  <interpretation><!-- I 0..* CodeableConcept High, low, normal, etc.   --></interpretation>
  <referenceRange><!-- See http://hl7.org/fhir/StructureDefinition/Observation#Observation.referenceRange  Provides guide for interpretation of component result --></referenceRange>
 </component>
</Observation>

{ // Device Metric Observation Profile
  // from Element: extension
    "meta" : { Meta }, // IMetadata about the resource
    "implicitRules" : "<uri>", // IA set of rules under which this content was created
    "language" : "<code>", // ILanguage of the resource content
    "text" : { Narrative }, // IText summary of the resource, for human interpretation
    "contained" : [{ Resource }], //Contained, inline Resources
    "modifierExtension" : [{ Extension }], // IExtensions that cannot be ignored
    "identifier" : [{ Identifier }], // IBusiness Identifier for observation
  // value[x]: Instantiates FHIR ObservationDefinition. One of these 2:
    "instantiatesCanonical" : "<canonical>", // IInstantiates FHIR ObservationDefinition
    "instantiatesReference" : { Reference(ObservationDefinition) }, // IInstantiates FHIR ObservationDefinition
    "basedOn" : [{ Reference(CarePlan) }], // IFulfills plan, proposal or order
    "triggeredBy" : [{ BackboneElement }], // ITriggering observation(s)
    "partOf" : [{ Reference(MedicationAdministration) }], // IPart of referenced event
    "status" : "<code>", // I R! registered | preliminary | final | amended +
    "category" : [{ CodeableConcept }], // IClassification of  type of observation
    "code" : { CodeableConcept }, // I R! Type of observation (code / type)
    "subject" : { Reference(Patient) }, // I R! Who and/or what the observation is about
    "focus" : [{ Reference(Resource) }], // IWhat the observation is about, when it is not about the subject of record
    "effectiveDateTime" : [ //  sliced by type:$this  in the specified order, Closed 
      { // Clinically relevant time/time-period for observation // I R! 
        // from Element: extension
      }
    ],
    "performer" : [{ Reference(Practitioner) }], // IWho is responsible for the observation
  // value[x]: Actual result. One of these 9:
    "valueQuantity" : { Quantity }, // IActual result
    "valueCodeableConcept" : { CodeableConcept }, // IActual result
    "valueString" : "<string>", // IActual result
    "valueRange" : { Range }, // IActual result
    "valueRatio" : { Ratio }, // IActual result
    "valueSampledData" : { SampledData }, // IActual result
    "valueTime" : "<time>", // IActual result
    "valueDateTime" : "<dateTime>", // IActual result
    "valuePeriod" : { Period }, // IActual result
    "interpretation" : { CodeableConcept }, // IHigh, low, normal, etc.
    "note" : [{ Annotation }], // IComments about the observation
    "bodySite" : { CodeableConcept }, // IObserved body part
    "bodyStructure" : { Reference(BodyStructure) }, // IObserved body structure
    "method" : { CodeableConcept }, // IHow it was done
    "device" : { Reference(DeviceMetric) }, // I R! (Measurement) Device
    "referenceRange" : { BackboneElement }, // IProvides guide for interpretation
    "hasMember" : [{ Reference(Observation) }], // IRelated resource that belongs to the Observation group
    "derivedFrom" : [{ Reference(Observation) }], // IRelated resource from which the observation is made
    "component" : [{ BackboneElement }], // IComponent results
  }