This structure is derived from Observation.

Summary

Mandatory: 3 elements (+3 nested mandatory elements)
Must-Support: 9 elements
Fixed Value: 5 elements
Prohibited: 7 elements

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

Name	Flags	Card.	Type	Description & Constraints
Observation		1..1	Observation	Measurements and simple assertions
code	S	1..1	CodeableConcept	Cholesterol Fixed Value: As shown
coding		1..1	Coding	Code defined by a terminology system Fixed Value: (complex)
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: 35200-5
display		1..1	string	Representation defined by the system Fixed Value: Cholesterol [Mass or Moles/volume] in Serum or Plasma
valueQuantity	S	0..1	Quantity	Cholesterol value
value	S	0..1	decimal	Actual numerical value
comparator		0..0
unit	S	1..1	string	Unit representation Fixed Value: mmol/L
system	S	1..1	uri	System that defines coded unit form Fixed Value: http://unitsofmeasure.org
code	S	1..1	code	Coded form of the unit Fixed Value: mmol/L
interpretation	S	0..1	CodeableConcept	+ | ++ | +++ | - | -- | ---
note	S	0..*	Annotation	Comments about result
referenceRange	S	1..1	BackboneElement	Provides guide for interpretation
low		0..0
high		1..1	SimpleQuantity	High Range, if relevant Fixed Value: As shown
value		1..1	decimal	Numerical value (with implicit precision) Fixed Value: 4.5
type		0..0
appliesTo		0..0
age		0..0
hasMember		0..0
derivedFrom		0..0
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	1..1	Observation	Measurements and simple assertions obs-6: dataAbsentReason SHALL only be present if Observation.value[x] is not present obs-7: If Observation.component.code is the same as Observation.code, then Observation.value SHALL NOT be present (the Observation.component.value[x] holds the value). obs-8: bodyStructure SHALL only be present if Observation.bodySite is not present
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: All Languages (required): IETF language tag for a human language Additional Bindings Purpose Common Languages Starter Set
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	Σ	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: triggered Bytype (required): The type of TriggeredBy Observation.
reason		0..1	string	Reason that the observation was triggered
partOf	Σ	0..*	Reference(MedicationAdministration | MedicationDispense | MedicationStatement | Procedure | Immunization | ImagingStudy | GenomicStudy)	Part of referenced event
status	?!Σ	1..1	code	registered | preliminary | final | amended | corrected | appended | cancelled | entered-in-error | unknown Binding: Observation Status (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	SΣC	1..1	CodeableConcept	Cholesterol Binding: LOINC Codes (example): Codes identifying names of simple observations. Fixed Value: As shown
id		0..0	string	Unique id for inter-element referencing
extension		0..0	Extension	Additional content defined by implementations
coding		1..1	Coding	Code defined by a terminology system Fixed Value: (complex)
id		0..0	string	Unique id for inter-element referencing
extension		0..0	Extension	Additional content defined by implementations
system		1..1	uri	Identity of the terminology system Fixed Value: http://loinc.org
version		0..0	string	Version of the system - if relevant
code		1..1	code	Symbol in syntax defined by the system Fixed Value: 35200-5
display		1..1	string	Representation defined by the system Fixed Value: Cholesterol [Mass or Moles/volume] in Serum or Plasma
userSelected		0..0	boolean	If this coding was chosen directly by the user
text		0..0	string	Plain text representation of the concept
subject	Σ	0..1	Reference(Patient | Group | Device | Location | Organization | Procedure | Practitioner | Medication | Substance | BiologicallyDerivedProduct | NutritionProduct)	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
encounter	Σ	0..1	Reference(Encounter)	Healthcare event during which this observation is made
effective[x]	Σ	0..1		Clinically relevant time/time-period for observation
effectiveDateTime			dateTime
effectivePeriod			Period
effectiveTiming			Timing
effectiveInstant			instant
issued	Σ	0..1	instant	Date/Time this version was made available
performer	Σ	0..*	Reference(Practitioner | PractitionerRole | Organization | CareTeam | Patient | RelatedPerson)	Who is responsible for the observation
Slices for value[x]	ΣC	0..1	Quantity	Actual result Slice: Unordered, Closed by type:$this
value[x]:valueQuantity	SΣC	0..1	Quantity	Cholesterol value
id		0..1	id	Unique id for inter-element referencing
extension		0..*	Extension	Additional content defined by implementations Slice: Unordered, Open by value:url
value	S	0..1	decimal	Actual numerical value
unit	S	1..1	string	Unit representation Fixed Value: mmol/L
system	SC	1..1	uri	System that defines coded unit form Fixed Value: http://unitsofmeasure.org
code	SC	1..1	code	Coded form of the unit Fixed Value: mmol/L
dataAbsentReason	C	0..1	CodeableConcept	Why the result value is missing Binding: Data Absent Reason (extensible): Codes specifying why the result (Observation.value[x]) is missing.
interpretation	S	0..1	CodeableConcept	+ | ++ | +++ | - | -- | --- Binding: Observation Interpretation Codes (extensible): Codes identifying interpretations of observations.
note	S	0..*	Annotation	Comments about result
bodySite	C	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		0..1	CodeableConcept	How it was done Binding: Observation Methods (example): Methods for simple observations.
specimen	C	0..1	Reference(Specimen | Group)	Specimen used for this observation obs-9: If Observation.specimen is a reference to Group, the group can only have specimens
device		0..1	Reference(Device | DeviceMetric)	A reference to the device that generates the measurements or the device settings for the device
referenceRange	SC	1..1	BackboneElement	Provides guide for interpretation obs-3: Must have at least a low or a high or text
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
high	C	1..1	SimpleQuantity	High Range, if relevant Fixed Value: As shown
id		0..0	string	Unique id for inter-element referencing
extension		0..0	Extension	Additional content defined by implementations
value		1..1	decimal	Numerical value (with implicit precision) Fixed Value: 4.5
comparator		0..0	code	< | <= | >= | > | ad - how to understand the value
unit		0..0	string	Unit representation
system		0..0	uri	System that defines coded unit form
code		0..0	code	Coded form of the unit
normalValue		0..1	CodeableConcept	Normal value, if relevant Binding: Observation Reference Range Normal Value Codes (extensible): Codes identifying the normal value of the observation.
text	C	0..1	markdown	Text based reference range in an observation
component	ΣC	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	ΣC	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
valueReference			Reference(MolecularSequence)
dataAbsentReason		0..1	CodeableConcept	Why the component result value is missing Binding: Data Absent Reason (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 value
Documentation for this format

<!-- ExampleLipidProfile -->

<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 | corrected | appended | cancelled | entered-in-error | unknown   -->
 <category><!-- I 0..* CodeableConcept Classification of  type of observation   --></category>
 <code><!-- I 1..1 CodeableConcept Cholesterol   --></code>
 <subject><!-- I 0..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..1 Reference(Encounter) 
     Healthcare event during which this observation is made --></encounter>
 <effective[x]><!-- I 0..1 dateTime|Period|Timing|instant 
     Clinically relevant time/time-period for observation --></effective[x]>
 <issued value="[instant]"/><!-- I 0..1 Date/Time this version was made available -->
 <performer><!-- I 0..* Reference(Practitioner) 
     Who is responsible for the observation --></performer>
 <-- valueQuantity sliced by type:$this  in the specified orderClosed-->
 <valueQuantity> I 0..1 Quantity  <!-- I 0..1 Cholesterol value -->
  <value value="[decimal]"/><!-- I 0..1 Actual numerical value -->
  <comparator value="[code]"/><!-- I 0..0 < | <= | >= | > | ad - how to understand the value   -->
  <unit value="[string]"/><!-- I 1..1 Unit representation -->
  <system value="[uri]"/><!-- I 1..1 System that defines coded unit form -->
  <code value="[code]"/><!-- I 1..1 Coded form of the unit -->
 </valueQuantity>
 <dataAbsentReason><!-- I 0..1 CodeableConcept Why the result value is missing   --></dataAbsentReason>
 <interpretation><!-- I 0..1 CodeableConcept + | ++ | +++ | - | -- | ---   --></interpretation>
 <note><!-- I 0..* Annotation Comments about result --></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..1 Reference(Specimen) Specimen used for this observation --></specimen>
 <device><!-- I 0..1 Reference(Device) 
     A reference to the device that generates the measurements or the device settings for the device --></device>
 <referenceRange> I 1..1 BackboneElement  <!-- I 1..1 Provides guide for interpretation -->
  <modifierExtension><!-- I 0..* Extension  Extensions that cannot be ignored even if unrecognized  --></modifierExtension>
  <low><!-- I 0..0 Quantity 
      Low Range, if relevant --></low>
  <high><!-- I 1..1 Quantity 
      High Range, if relevant --></high>
  <normalValue><!-- I 0..1 CodeableConcept Normal value, if relevant   --></normalValue>
  <type><!-- I 0..0 CodeableConcept Reference range qualifier   --></type>
  <appliesTo><!-- I 0..0 CodeableConcept Reference range population   --></appliesTo>
  <age><!-- I 0..0 Range 
      Applicable age range, if relevant --></age>
  <text value="[markdown]"/><!-- I 0..1 Text based reference range in an observation -->
 </referenceRange>
 <hasMember><!-- I 0..0 Reference(Observation) 
     Related resource that belongs to the Observation group --></hasMember>
 <derivedFrom><!-- I 0..0 Reference(DocumentReference) 
     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|
    Reference(MolecularSequence) Actual component result --></value[x]>
  <dataAbsentReason><!-- I 0..1 CodeableConcept Why the component result value 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 value --></referenceRange>
 </component>
</Observation>

{ // ExampleLipidProfile
  // 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 | corrected | appended | cancelled | entered-in-error | unknown
    "category" : [{ CodeableConcept }], // IClassification of  type of observation
    "code" : { CodeableConcept }, // I R! 
    "subject" : { Reference(Patient) }, // IWho and/or what the observation is about
    "focus" : [{ Reference(Resource) }], // IWhat the observation is about, when it is not about the subject of record
    "encounter" : { Reference(Encounter) }, // IHealthcare event during which this observation is made
  // value[x]: Clinically relevant time/time-period for observation. One of these 4:
    "effectiveDateTime" : "<dateTime>", // IClinically relevant time/time-period for observation
    "effectivePeriod" : { Period }, // IClinically relevant time/time-period for observation
    "effectiveTiming" : { Timing }, // IClinically relevant time/time-period for observation
    "effectiveInstant" : "<instant>", // IClinically relevant time/time-period for observation
    "issued" : "<instant>", // IDate/Time this version was made available
    "performer" : [{ Reference(Practitioner) }], // IWho is responsible for the observation
    "valueQuantity" : [ //  sliced by type:$this  in the specified order, Closed 
      { // Cholesterol value // I
        // from Element: extension
        "extension" : [ //  sliced by value:url  in the specified order, Open ]
        "value" : <decimal>, // IActual numerical value
        "unit" : "mmol/L", // I R! 
        "system" : "http://unitsofmeasure.org", // I R! 
        "code" : "mmol/L" // I R! 
      }
    ],
    "dataAbsentReason" : { CodeableConcept }, // IWhy the result value is missing
    "interpretation" : { CodeableConcept }, // I+ | ++ | +++ | - | -- | ---
    "note" : [{ Annotation }], // IComments about result
    "bodySite" : { CodeableConcept }, // IObserved body part
    "bodyStructure" : { Reference(BodyStructure) }, // IObserved body structure
    "method" : { CodeableConcept }, // IHow it was done
    "specimen" : { Reference(Specimen) }, // ISpecimen used for this observation
    "device" : { Reference(Device) }, // IA reference to the device that generates the measurements or the device settings for the device
    "referenceRange" : { BackboneElement }, // I R! Provides guide for interpretation
    "component" : [{ BackboneElement }], // IComponent results
  }

Summary

Mandatory: 3 elements (+3 nested mandatory elements)
Must-Support: 9 elements
Fixed Value: 5 elements
Prohibited: 7 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	1..1	Observation	Measurements and simple assertions obs-6: dataAbsentReason SHALL only be present if Observation.value[x] is not present obs-7: If Observation.component.code is the same as Observation.code, then Observation.value SHALL NOT be present (the Observation.component.value[x] holds the value). obs-8: bodyStructure SHALL only be present if Observation.bodySite is not present
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: All Languages (required): IETF language tag for a human language Additional Bindings Purpose Common Languages Starter Set
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	Σ	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: triggered Bytype (required): The type of TriggeredBy Observation.
reason		0..1	string	Reason that the observation was triggered
partOf	Σ	0..*	Reference(MedicationAdministration | MedicationDispense | MedicationStatement | Procedure | Immunization | ImagingStudy | GenomicStudy)	Part of referenced event
status	?!Σ	1..1	code	registered | preliminary | final | amended | corrected | appended | cancelled | entered-in-error | unknown Binding: Observation Status (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	SΣC	1..1	CodeableConcept	Cholesterol Binding: LOINC Codes (example): Codes identifying names of simple observations. Fixed Value: As shown
id		0..0	string	Unique id for inter-element referencing
extension		0..0	Extension	Additional content defined by implementations
coding		1..1	Coding	Code defined by a terminology system Fixed Value: (complex)
id		0..0	string	Unique id for inter-element referencing
extension		0..0	Extension	Additional content defined by implementations
system		1..1	uri	Identity of the terminology system Fixed Value: http://loinc.org
version		0..0	string	Version of the system - if relevant
code		1..1	code	Symbol in syntax defined by the system Fixed Value: 35200-5
display		1..1	string	Representation defined by the system Fixed Value: Cholesterol [Mass or Moles/volume] in Serum or Plasma
userSelected		0..0	boolean	If this coding was chosen directly by the user
text		0..0	string	Plain text representation of the concept
subject	Σ	0..1	Reference(Patient | Group | Device | Location | Organization | Procedure | Practitioner | Medication | Substance | BiologicallyDerivedProduct | NutritionProduct)	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
encounter	Σ	0..1	Reference(Encounter)	Healthcare event during which this observation is made
effective[x]	Σ	0..1		Clinically relevant time/time-period for observation
effectiveDateTime			dateTime
effectivePeriod			Period
effectiveTiming			Timing
effectiveInstant			instant
issued	Σ	0..1	instant	Date/Time this version was made available
performer	Σ	0..*	Reference(Practitioner | PractitionerRole | Organization | CareTeam | Patient | RelatedPerson)	Who is responsible for the observation
Slices for value[x]	ΣC	0..1	Quantity	Actual result Slice: Unordered, Closed by type:$this
value[x]:valueQuantity	SΣC	0..1	Quantity	Cholesterol value
id		0..1	id	Unique id for inter-element referencing
extension		0..*	Extension	Additional content defined by implementations Slice: Unordered, Open by value:url
value	S	0..1	decimal	Actual numerical value
unit	S	1..1	string	Unit representation Fixed Value: mmol/L
system	SC	1..1	uri	System that defines coded unit form Fixed Value: http://unitsofmeasure.org
code	SC	1..1	code	Coded form of the unit Fixed Value: mmol/L
dataAbsentReason	C	0..1	CodeableConcept	Why the result value is missing Binding: Data Absent Reason (extensible): Codes specifying why the result (Observation.value[x]) is missing.
interpretation	S	0..1	CodeableConcept	+ | ++ | +++ | - | -- | --- Binding: Observation Interpretation Codes (extensible): Codes identifying interpretations of observations.
note	S	0..*	Annotation	Comments about result
bodySite	C	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		0..1	CodeableConcept	How it was done Binding: Observation Methods (example): Methods for simple observations.
specimen	C	0..1	Reference(Specimen | Group)	Specimen used for this observation obs-9: If Observation.specimen is a reference to Group, the group can only have specimens
device		0..1	Reference(Device | DeviceMetric)	A reference to the device that generates the measurements or the device settings for the device
referenceRange	SC	1..1	BackboneElement	Provides guide for interpretation obs-3: Must have at least a low or a high or text
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
high	C	1..1	SimpleQuantity	High Range, if relevant Fixed Value: As shown
id		0..0	string	Unique id for inter-element referencing
extension		0..0	Extension	Additional content defined by implementations
value		1..1	decimal	Numerical value (with implicit precision) Fixed Value: 4.5
comparator		0..0	code	< | <= | >= | > | ad - how to understand the value
unit		0..0	string	Unit representation
system		0..0	uri	System that defines coded unit form
code		0..0	code	Coded form of the unit
normalValue		0..1	CodeableConcept	Normal value, if relevant Binding: Observation Reference Range Normal Value Codes (extensible): Codes identifying the normal value of the observation.
text	C	0..1	markdown	Text based reference range in an observation
component	ΣC	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	ΣC	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
valueReference			Reference(MolecularSequence)
dataAbsentReason		0..1	CodeableConcept	Why the component result value is missing Binding: Data Absent Reason (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 value
Documentation for this format

<!-- ExampleLipidProfile -->

<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 | corrected | appended | cancelled | entered-in-error | unknown   -->
 <category><!-- I 0..* CodeableConcept Classification of  type of observation   --></category>
 <code><!-- I 1..1 CodeableConcept Cholesterol   --></code>
 <subject><!-- I 0..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..1 Reference(Encounter) 
     Healthcare event during which this observation is made --></encounter>
 <effective[x]><!-- I 0..1 dateTime|Period|Timing|instant 
     Clinically relevant time/time-period for observation --></effective[x]>
 <issued value="[instant]"/><!-- I 0..1 Date/Time this version was made available -->
 <performer><!-- I 0..* Reference(Practitioner) 
     Who is responsible for the observation --></performer>
 <-- valueQuantity sliced by type:$this  in the specified orderClosed-->
 <valueQuantity> I 0..1 Quantity  <!-- I 0..1 Cholesterol value -->
  <value value="[decimal]"/><!-- I 0..1 Actual numerical value -->
  <comparator value="[code]"/><!-- I 0..0 < | <= | >= | > | ad - how to understand the value   -->
  <unit value="[string]"/><!-- I 1..1 Unit representation -->
  <system value="[uri]"/><!-- I 1..1 System that defines coded unit form -->
  <code value="[code]"/><!-- I 1..1 Coded form of the unit -->
 </valueQuantity>
 <dataAbsentReason><!-- I 0..1 CodeableConcept Why the result value is missing   --></dataAbsentReason>
 <interpretation><!-- I 0..1 CodeableConcept + | ++ | +++ | - | -- | ---   --></interpretation>
 <note><!-- I 0..* Annotation Comments about result --></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..1 Reference(Specimen) Specimen used for this observation --></specimen>
 <device><!-- I 0..1 Reference(Device) 
     A reference to the device that generates the measurements or the device settings for the device --></device>
 <referenceRange> I 1..1 BackboneElement  <!-- I 1..1 Provides guide for interpretation -->
  <modifierExtension><!-- I 0..* Extension  Extensions that cannot be ignored even if unrecognized  --></modifierExtension>
  <low><!-- I 0..0 Quantity 
      Low Range, if relevant --></low>
  <high><!-- I 1..1 Quantity 
      High Range, if relevant --></high>
  <normalValue><!-- I 0..1 CodeableConcept Normal value, if relevant   --></normalValue>
  <type><!-- I 0..0 CodeableConcept Reference range qualifier   --></type>
  <appliesTo><!-- I 0..0 CodeableConcept Reference range population   --></appliesTo>
  <age><!-- I 0..0 Range 
      Applicable age range, if relevant --></age>
  <text value="[markdown]"/><!-- I 0..1 Text based reference range in an observation -->
 </referenceRange>
 <hasMember><!-- I 0..0 Reference(Observation) 
     Related resource that belongs to the Observation group --></hasMember>
 <derivedFrom><!-- I 0..0 Reference(DocumentReference) 
     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|
    Reference(MolecularSequence) Actual component result --></value[x]>
  <dataAbsentReason><!-- I 0..1 CodeableConcept Why the component result value 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 value --></referenceRange>
 </component>
</Observation>

{ // ExampleLipidProfile
  // 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 | corrected | appended | cancelled | entered-in-error | unknown
    "category" : [{ CodeableConcept }], // IClassification of  type of observation
    "code" : { CodeableConcept }, // I R! 
    "subject" : { Reference(Patient) }, // IWho and/or what the observation is about
    "focus" : [{ Reference(Resource) }], // IWhat the observation is about, when it is not about the subject of record
    "encounter" : { Reference(Encounter) }, // IHealthcare event during which this observation is made
  // value[x]: Clinically relevant time/time-period for observation. One of these 4:
    "effectiveDateTime" : "<dateTime>", // IClinically relevant time/time-period for observation
    "effectivePeriod" : { Period }, // IClinically relevant time/time-period for observation
    "effectiveTiming" : { Timing }, // IClinically relevant time/time-period for observation
    "effectiveInstant" : "<instant>", // IClinically relevant time/time-period for observation
    "issued" : "<instant>", // IDate/Time this version was made available
    "performer" : [{ Reference(Practitioner) }], // IWho is responsible for the observation
    "valueQuantity" : [ //  sliced by type:$this  in the specified order, Closed 
      { // Cholesterol value // I
        // from Element: extension
        "extension" : [ //  sliced by value:url  in the specified order, Open ]
        "value" : <decimal>, // IActual numerical value
        "unit" : "mmol/L", // I R! 
        "system" : "http://unitsofmeasure.org", // I R! 
        "code" : "mmol/L" // I R! 
      }
    ],
    "dataAbsentReason" : { CodeableConcept }, // IWhy the result value is missing
    "interpretation" : { CodeableConcept }, // I+ | ++ | +++ | - | -- | ---
    "note" : [{ Annotation }], // IComments about result
    "bodySite" : { CodeableConcept }, // IObserved body part
    "bodyStructure" : { Reference(BodyStructure) }, // IObserved body structure
    "method" : { CodeableConcept }, // IHow it was done
    "specimen" : { Reference(Specimen) }, // ISpecimen used for this observation
    "device" : { Reference(Device) }, // IA reference to the device that generates the measurements or the device settings for the device
    "referenceRange" : { BackboneElement }, // I R! Provides guide for interpretation
    "component" : [{ BackboneElement }], // IComponent results
  }