Result Observation - Definitions - Consolidated CDA Release 2.1 StructureDefinition Publication v2.1

Consolidated CDA Release 2.1 StructureDefinition Publication, published by Health Level Seven. This is not an authorized publication; it is the continuous build for version 2.1). This version is based on the current content of https://github.com/HL7/CDA-ccda-2.1-sd/ and changes regularly. See the Directory of published versions

Logical Model: ResultObservation - Detailed Descriptions

Draft as of 2023-09-29

Definitions for the ResultObservation logical model.

Differential Elements Table
Key Elements Table
Snapshot Elements Table

Guidance on how to interpret the contents of this table can be found here

0. Observation
XML Format	In the XML format, this property has the namespace `urn:hl7-org:v3`.
2. Observation.classCode
Comments	SHALL contain exactly one [1..1] @classCode="OBS" Observation (CodeSystem: HL7ActClass urn:oid:2.16.840.1.113883.5.6 STATIC) (CONF:4537-7130).
Fixed Value	OBS
4. Observation.moodCode
Comments	SHALL contain exactly one [1..1] @moodCode="EVN" Event (CodeSystem: HL7ActMood urn:oid:2.16.840.1.113883.5.1001 STATIC) (CONF:4537-7131).
Fixed Value	EVN
6. Observation.templateId
Comments	SHALL contain exactly one [1..1] templateId (CONF:4537-7136) such that it
Control	1..?
Slicing	This element introduces a set of slices on `Observation.templateId`. The slices are unordered and Open, and can be differentiated using the following discriminators: , and can be differentiated using the following discriminators: value @ root value @ extension
8. Observation.templateId:templateId1
Slice Name	templateId1
Short	templateId
Control	1..1
10. Observation.templateId:templateId1.root
Comments	SHALL contain exactly one [1..1] @root="2.16.840.1.113883.10.20.22.4.2" (CONF:4537-9138).
Control	1..?
Pattern Value	2.16.840.1.113883.10.20.22.4.2
12. Observation.templateId:templateId1.extension
Comments	SHALL contain exactly one [1..1] @extension="2023-05-01" (CONF:4537-32575).
Control	1..?
Pattern Value	2023-05-01
14. Observation.id
Comments	SHALL contain at least one [1..*] id (CONF:4537-7137).
Control	1..?
16. Observation.code
Comments	SHALL contain exactly one [1..1] code, which SHOULD be selected from CodeSystem LOINC (urn:oid:2.16.840.1.113883.6.1) (CONF:4537-7133).
Invariants	4537-19212: This code SHOULD be a code from the LOINC that identifies the result observation. If an appropriate LOINC code does not exist, then the local code for this result SHALL be sent (CONF:4537-19212). ()
18. Observation.statusCode
Comments	SHALL contain exactly one [1..1] statusCode (CONF:4537-7134).
Control	1..?
20. Observation.statusCode.code
Comments	This statusCode SHALL contain exactly one [1..1] @code, which SHALL be selected from ValueSet Result Status urn:oid:2.16.840.1.113883.11.20.9.39 STATIC (CONF:4537-14849).
Control	1..?
Binding	The codes SHALL be taken from Result Status
22. Observation.effectiveTime
Short	Represents the clinically relevant time of the measurement (e.g., the time a blood pressure reading is obtained, the time the blood sample was obtained for a chemistry test).
Comments	SHALL contain exactly one [1..1] effectiveTime (CONF:4537-7140).
Control	1..?
24. Observation.value
Comments	SHALL contain exactly one [1..1] value (CONF:4537-7143).
Control	1..1
Invariants	4537-31484: If Observation/value is a physical quantity (xsi:type="PQ"): This value SHALL contain exactly one [1..1] @unit, which SHOULD be selected from ValueSet UnitsOfMeasureCaseSensitive urn:oid:2.16.840.1.113883.1.11.12839 DYNAMIC. Note: Base CDA requires that all @unit values SHALL be drawn from UCUM. () 4537-31866: A coded or physical quantity value MAY contain zero or more [0..&ast;] translations, which can be used to represent the original results as output by the lab (CONF:4537-31866). () 4537-32610: If Observation/value is a CD (xsi:type="CD") the value SHOULD be SNOMED-CT (CONF:4537-32610). ()
26. Observation.interpretationCode
Comments	SHOULD contain zero or more [0..*] interpretationCode, which SHALL be selected from ValueSet Observation Interpretation (HL7) urn:oid:2.16.840.1.113883.1.11.78 DYNAMIC (CONF:4537-7147).
Binding	The codes SHALL be taken from Observation Interpretation (HL7)
28. Observation.methodCode
Comments	MAY contain zero or one [0..1] methodCode (CONF:4537-7148).
Control	0..1
30. Observation.targetSiteCode
Comments	MAY contain zero or one [0..1] targetSiteCode (CONF:4537-7153).
Control	0..1
32. Observation.specimen
Comments	MAY contain zero or more [0..*] specimen (CONF:4537-32611).
34. Observation.specimen.specimenRole
Comments	The specimen, if present, SHALL contain exactly one [1..1] specimenRole (CONF:4537-32612).
36. Observation.specimen.specimenRole.specimenPlayingEntity
Comments	This specimenRole SHALL contain exactly one [1..1] specimenPlayingEntity (CONF:4537-32613).
Control	1..?
38. Observation.specimen.specimenRole.specimenPlayingEntity.code
Comments	This specimenPlayingEntity SHALL contain exactly one [1..1] code, which SHOULD be selected from ValueSet Specimen type urn:oid:2.16.840.1.113762.1.4.1099.54 DYNAMIC (CONF:4537-32614).
Control	1..?
Binding	The codes SHOULD be taken from VSAC 2.16.840.1.113762.1.4.1099.54
40. Observation.author
Comments	SHOULD contain zero or more [0..*] Author Participation (identifier: urn:oid:2.16.840.1.113883.10.20.22.4.119) (CONF:4537-7149).
Type	http://hl7.org/cda/stds/core/StructureDefinition/Author(Author Participation)
42. Observation.referenceRange
Comments	SHOULD contain zero or more [0..*] referenceRange (CONF:4537-7150).
44. Observation.referenceRange.observationRange
Comments	The referenceRange, if present, SHALL contain exactly one [1..1] observationRange (CONF:4537-7151).
46. Observation.referenceRange.observationRange.code
Comments	This observationRange SHALL NOT contain [0..0] code (CONF:4537-7152).
Control	0..0
48. Observation.referenceRange.observationRange.value
Comments	This observationRange SHALL contain exactly one [1..1] value (CONF:4537-32175).
Control	1..?

Guidance on how to interpret the contents of this table can be found here

0. Observation
Definition	Base definition for all types defined in FHIR type system.
Short	Base for all types and resources
Control	10..1*
Is Modifier	false
XML Format	In the XML format, this property has the namespace `urn:hl7-org:v3`.
Invariants	ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
2. Observation.classCode
Comments	SHALL contain exactly one [1..1] @classCode="OBS" Observation (CodeSystem: HL7ActClass urn:oid:2.16.840.1.113883.5.6 STATIC) (CONF:4537-7130).
Control	1..1
Binding	The codes SHALL be taken from ActClassObservation
Type	code(cs: Coded Simple Value)
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
XML Format	In the XML format, this property is represented as an attribute.
Fixed Value	OBS
4. Observation.moodCode
Comments	SHALL contain exactly one [1..1] @moodCode="EVN" Event (CodeSystem: HL7ActMood urn:oid:2.16.840.1.113883.5.1001 STATIC) (CONF:4537-7131).
Control	1..1
Type	code(cs: Coded Simple Value)
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
XML Format	In the XML format, this property is represented as an attribute.
Fixed Value	EVN
6. Observation.templateId
Definition	When valued in an instance, this attribute signals the imposition of a set of template-defined constraints. The value of this attribute provides a unique identifier for the templates in question
Comments	SHALL contain exactly one [1..1] templateId (CONF:4537-7136) such that it
Control	1..*
Type	http://hl7.org/cda/stds/core/StructureDefinition/II
Slicing	This element introduces a set of slices on `Observation.templateId`. The slices are unordered and Open, and can be differentiated using the following discriminators: , and can be differentiated using the following discriminators: value @ root value @ extension
8. Observation.templateId:templateId1
Slice Name	templateId1
Definition	When valued in an instance, this attribute signals the imposition of a set of template-defined constraints. The value of this attribute provides a unique identifier for the templates in question
Short	templateId
Control	1..1
Type	http://hl7.org/cda/stds/core/StructureDefinition/II
10. Observation.templateId:templateId1.root
Definition	A unique identifier that guarantees the global uniqueness of the instance identifier. The root alone may be the entire instance identifier.
Comments	SHALL contain exactly one [1..1] @root="2.16.840.1.113883.10.20.22.4.2" (CONF:4537-9138).
Control	1..1
Type	string(oid: ISO Object Identifier, uuid: DCE Universal Unique Identifier, ruid: HL7 Reserved Identifier Scheme)
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
XML Format	In the XML format, this property is represented as an attribute.
Label	Root
Pattern Value	2.16.840.1.113883.10.20.22.4.2
12. Observation.templateId:templateId1.extension
Definition	A character string as a unique identifier within the scope of the identifier root.
Comments	SHALL contain exactly one [1..1] @extension="2023-05-01" (CONF:4537-32575).
Control	1..1
Type	string(st: Character String)
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
XML Format	In the XML format, this property is represented as an attribute.
Label	Extension
Pattern Value	2023-05-01
14. Observation.id
Definition	The logical id of the resource, as used in the URL for the resource. Once assigned, this value never changes.
Short	Logical id of this artifact
Comments	SHALL contain at least one [1..*] id (CONF:4537-7137). Within the context of the FHIR RESTful interactions, the resource has an id except for cases like the create and conditional update. Otherwise, the use of the resouce id depends on the given use case.
Control	10..*1
Type	http://hl7.org/cda/stds/core/StructureDefinition/IIid
Is Modifier	false
16. Observation.code
Definition	Describes what was observed. Sometimes this is called the observation "name".
Short	Type of observation (code / type)
Comments	SHALL contain exactly one [1..1] code, which SHOULD be selected from CodeSystem LOINC (urn:oid:2.16.840.1.113883.6.1) (CONF:4537-7133). All code-value and, if present, component.code-component.value pairs need to be taken into account to correctly understand the meaning of the observation.
Control	1..1 This element is affected by the following invariants: obs-7
Binding	Unless not suitable, these codes SHALL be taken from For example codes, see ObservationTypehttp://hl7.org/fhir/ValueSet/observation-codes
Type	http://hl7.org/cda/stds/core/StructureDefinition/CDCodeableConcept
Is Modifier	false
XML Format	The type of this property is determined using the `xsi:type`attribute.
Requirements	Knowing what kind of observation is being made is essential to understanding the observation.
Alternate Names	Name
Invariants	4537-19212: This code SHOULD be a code from the LOINC that identifies the result observation. If an appropriate LOINC code does not exist, then the local code for this result SHALL be sent (CONF:4537-19212). () ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
18. Observation.statusCode
Comments	SHALL contain exactly one [1..1] statusCode (CONF:4537-7134).
Control	1..1
Binding	The codes SHALL be taken from ActStatus
Type	http://hl7.org/cda/stds/core/StructureDefinition/CS
20. Observation.statusCode.code
Definition	The plain code symbol defined by the code system. For example, "784.0" is the code symbol of the ICD-9 code "784.0" for headache.
Comments	This statusCode SHALL contain exactly one [1..1] @code, which SHALL be selected from ValueSet Result Status urn:oid:2.16.840.1.113883.11.20.9.39 STATIC (CONF:4537-14849).
Control	1..1
Binding	The codes SHALL be taken from Result Status
Type	code(cs: Coded Simple Value)
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
XML Format	In the XML format, this property is represented as an attribute.
Label	Code
22. Observation.statusCode.codeSystem
Definition	Specifies the code system that defines the code.
Control	0..0
Type	string(oid: ISO Object Identifier, uuid: DCE Universal Unique Identifier, ruid: HL7 Reserved Identifier Scheme)
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
XML Format	In the XML format, this property is represented as an attribute.
Label	Code System
24. Observation.statusCode.codeSystemName
Definition	The common name of the coding system.
Control	0..0
Type	string(st: Character String)
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
XML Format	In the XML format, this property is represented as an attribute.
Label	Code System Name
26. Observation.statusCode.codeSystemVersion
Definition	If applicable, a version descriptor defined specifically for the given code system.
Control	0..0
Type	string(st: Character String)
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
XML Format	In the XML format, this property is represented as an attribute.
Label	Code System Version
28. Observation.statusCode.displayName
Definition	A name or title for the code, under which the sending system shows the code value to its users.
Control	0..0
Type	string(st: Character String)
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
XML Format	In the XML format, this property is represented as an attribute.
Label	Display Name
30. Observation.statusCode.originalText
Definition	The text or phrase used as the basis for the coding.
Control	0..0
Type	http://hl7.org/cda/stds/core/StructureDefinition/ED
Label	Original Text
32. Observation.statusCode.qualifier
Definition	Specifies additional codes that increase the specificity of the the primary code.
Control	0..0
Type	http://hl7.org/cda/stds/core/StructureDefinition/CR
Label	Qualifier
34. Observation.statusCode.translation
Definition	A set of other concept descriptors that translate this concept descriptor into other code systems.
Control	0..0
Type	http://hl7.org/cda/stds/core/StructureDefinition/CD
XML Format	The type of this property is determined using the `xsi:type`attribute.
Label	Translation
36. Observation.effectiveTime
Short	Represents the clinically relevant time of the measurement (e.g., the time a blood pressure reading is obtained, the time the blood sample was obtained for a chemistry test).
Comments	SHALL contain exactly one [1..1] effectiveTime (CONF:4537-7140).
Control	1..1
Type	http://hl7.org/cda/stds/core/StructureDefinition/IVL-TS
38. Observation.value
Comments	SHALL contain exactly one [1..1] value (CONF:4537-7143).
Control	1..1
Type	Choice of: http://hl7.org/cda/stds/core/StructureDefinition/ANY, http://hl7.org/cda/stds/core/StructureDefinition/BL, http://hl7.org/cda/stds/core/StructureDefinition/ED, http://hl7.org/cda/stds/core/StructureDefinition/ST, http://hl7.org/cda/stds/core/StructureDefinition/CD, http://hl7.org/cda/stds/core/StructureDefinition/CV, http://hl7.org/cda/stds/core/StructureDefinition/CE, http://hl7.org/cda/stds/core/StructureDefinition/SC, http://hl7.org/cda/stds/core/StructureDefinition/II, http://hl7.org/cda/stds/core/StructureDefinition/TEL, http://hl7.org/cda/stds/core/StructureDefinition/AD, http://hl7.org/cda/stds/core/StructureDefinition/EN, http://hl7.org/cda/stds/core/StructureDefinition/INT, http://hl7.org/cda/stds/core/StructureDefinition/REAL, http://hl7.org/cda/stds/core/StructureDefinition/PQ, http://hl7.org/cda/stds/core/StructureDefinition/MO, http://hl7.org/cda/stds/core/StructureDefinition/TS, http://hl7.org/cda/stds/core/StructureDefinition/IVL-PQ, http://hl7.org/cda/stds/core/StructureDefinition/IVL-TS, http://hl7.org/cda/stds/core/StructureDefinition/PIVL-TS, http://hl7.org/cda/stds/core/StructureDefinition/EIVL-TS, http://hl7.org/cda/stds/core/StructureDefinition/SXPR-TS, http://hl7.org/cda/stds/core/StructureDefinition/RTO-PQ-PQ
XML Format	The type of this property is determined using the `xsi:type`attribute.
Invariants	4537-31484: If Observation/value is a physical quantity (xsi:type="PQ"): This value SHALL contain exactly one [1..1] @unit, which SHOULD be selected from ValueSet UnitsOfMeasureCaseSensitive urn:oid:2.16.840.1.113883.1.11.12839 DYNAMIC. Note: Base CDA requires that all @unit values SHALL be drawn from UCUM. () 4537-31866: A coded or physical quantity value MAY contain zero or more [0..&ast;] translations, which can be used to represent the original results as output by the lab (CONF:4537-31866). () 4537-32610: If Observation/value is a CD (xsi:type="CD") the value SHOULD be SNOMED-CT (CONF:4537-32610). ()
40. Observation.interpretationCode
Comments	SHOULD contain zero or more [0..*] interpretationCode, which SHALL be selected from ValueSet Observation Interpretation (HL7) urn:oid:2.16.840.1.113883.1.11.78 DYNAMIC (CONF:4537-7147).
Control	0..*
Binding	The codes SHALL be taken from Observation Interpretation (HL7)
Type	http://hl7.org/cda/stds/core/StructureDefinition/CE
42. Observation.methodCode
Comments	MAY contain zero or one [0..1] methodCode (CONF:4537-7148).
Control	0..1
Binding	Unless not suitable, these codes SHALL be taken from ObservationMethod
Type	http://hl7.org/cda/stds/core/StructureDefinition/CE
44. Observation.targetSiteCode
Definition	Drawn from concept domain ActSite
Comments	MAY contain zero or one [0..1] targetSiteCode (CONF:4537-7153).
Control	0..1
Type	http://hl7.org/cda/stds/core/StructureDefinition/CD
46. Observation.specimen
Definition	The specimen that was used when this observation was made.
Short	Specimen used for this observation
Comments	MAY contain zero or more [0..*] specimen (CONF:4537-32611). Should only be used if not implicit in code found in `Observation.code`. Observations are not made on specimens themselves; they are made on a subject, but in many cases by the means of a specimen. Note that although specimens are often involved, they are not always tracked and reported explicitly. Also note that observation resources may be used in contexts that track the specimen explicitly (e.g. Diagnostic Report).
Control	0..*1
Type	http://hl7.org/cda/stds/core/StructureDefinition/SpecimenReference(Specimen, Group)
Is Modifier	false
Invariants	ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count())) obs-9: If Observation.specimen is a reference to Group, the group can only have specimens ((reference.resolve().exists() and reference.resolve() is Group) implies reference.resolve().member.entity.resolve().all($this is Specimen))
48. Observation.specimen.specimenRole
Comments	The specimen, if present, SHALL contain exactly one [1..1] specimenRole (CONF:4537-32612).
Control	1..1
Type	http://hl7.org/cda/stds/core/StructureDefinition/SpecimenRole
50. Observation.specimen.specimenRole.specimenPlayingEntity
Comments	This specimenRole SHALL contain exactly one [1..1] specimenPlayingEntity (CONF:4537-32613).
Control	1..1
Type	http://hl7.org/cda/stds/core/StructureDefinition/PlayingEntity
52. Observation.specimen.specimenRole.specimenPlayingEntity.classCode
Control	1..1
Binding	The codes SHALL be taken from EntityClassRoot
Type	code(cs: Coded Simple Value)
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
XML Format	In the XML format, this property is represented as an attribute.
Default Value	ENT
54. Observation.specimen.specimenRole.specimenPlayingEntity.code
Comments	This specimenPlayingEntity SHALL contain exactly one [1..1] code, which SHOULD be selected from ValueSet Specimen type urn:oid:2.16.840.1.113762.1.4.1099.54 DYNAMIC (CONF:4537-32614).
Control	1..1
Binding	The codes SHOULD be taken from VSAC 2.16.840.1.113762.1.4.1099.54
Type	http://hl7.org/cda/stds/core/StructureDefinition/CE
56. Observation.author
Definition	Base definition for all types defined in FHIR type system.
Short	Base for all types and resources
Comments	SHOULD contain zero or more [0..*] Author Participation (identifier: urn:oid:2.16.840.1.113883.10.20.22.4.119) (CONF:4537-7149).
Control	0..*
Type	http://hl7.org/cda/stds/core/StructureDefinition/Author(Author Participation)
Is Modifier	false
Invariants	ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`)
58. Observation.referenceRange
Definition	Relates an Observation to the ObservationRange class, where the expected range of values for a particular observation can be specified. Guidance on how to interpret the value by comparison to a normal or recommended range. Multiple reference ranges are interpreted as an "OR". In other words, to represent two distinct target populations, two `referenceRange` elements would be used.
Short	Provides guide for interpretation
Comments	SHOULD contain zero or more [0..*] referenceRange (CONF:4537-7150). Most observations only have one generic reference range. Systems MAY choose to restrict to only supplying the relevant reference range based on knowledge about the patient (e.g., specific to the patient's age, gender, weight and other factors), but this might not be possible or appropriate. Whenever more than one reference range is supplied, the differences between them SHOULD be provided in the reference range and/or age properties.
Control	0..*
Type	http://hl7.org/cda/stds/core/StructureDefinition/InfrastructureRootBackboneElement
Is Modifier	false
Requirements	Knowing what values are considered "normal" can help evaluate the significance of a particular result. Need to be able to provide multiple reference ranges for different contexts.
Invariants	ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count())) obs-3: Must have at least a low or a high or text (low.exists() or high.exists() or text.exists())
60. Observation.referenceRange.observationRange
Comments	The referenceRange, if present, SHALL contain exactly one [1..1] observationRange (CONF:4537-7151).
Control	1..1
Type	http://hl7.org/cda/stds/core/StructureDefinition/ObservationRange
62. Observation.referenceRange.observationRange.classCode
Control	1..1
Binding	The codes SHALL be taken from ActClassObservation
Type	code(cs: Coded Simple Value)
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
XML Format	In the XML format, this property is represented as an attribute.
Default Value	OBS
64. Observation.referenceRange.observationRange.code
Comments	This observationRange SHALL NOT contain [0..0] code (CONF:4537-7152).
Control	0..0
Binding	Unless not suitable, these codes SHALL be taken from v3 Code System ActCode
Type	http://hl7.org/cda/stds/core/StructureDefinition/CD
66. Observation.referenceRange.observationRange.value
Comments	This observationRange SHALL contain exactly one [1..1] value (CONF:4537-32175).
Control	1..1
Type	Choice of: http://hl7.org/cda/stds/core/StructureDefinition/BL, http://hl7.org/cda/stds/core/StructureDefinition/ED, http://hl7.org/cda/stds/core/StructureDefinition/ST, http://hl7.org/cda/stds/core/StructureDefinition/CD, http://hl7.org/cda/stds/core/StructureDefinition/CV, http://hl7.org/cda/stds/core/StructureDefinition/CE, http://hl7.org/cda/stds/core/StructureDefinition/SC, http://hl7.org/cda/stds/core/StructureDefinition/II, http://hl7.org/cda/stds/core/StructureDefinition/TEL, http://hl7.org/cda/stds/core/StructureDefinition/AD, http://hl7.org/cda/stds/core/StructureDefinition/EN, http://hl7.org/cda/stds/core/StructureDefinition/INT, http://hl7.org/cda/stds/core/StructureDefinition/REAL, http://hl7.org/cda/stds/core/StructureDefinition/PQ, http://hl7.org/cda/stds/core/StructureDefinition/MO, http://hl7.org/cda/stds/core/StructureDefinition/TS, http://hl7.org/cda/stds/core/StructureDefinition/IVL-PQ, http://hl7.org/cda/stds/core/StructureDefinition/IVL-TS, http://hl7.org/cda/stds/core/StructureDefinition/PIVL-TS, http://hl7.org/cda/stds/core/StructureDefinition/EIVL-TS, http://hl7.org/cda/stds/core/StructureDefinition/SXPR-TS
XML Format	The type of this property is determined using the `xsi:type`attribute.

Guidance on how to interpret the contents of this table can be found here

0. Observation
Definition	Base definition for all types defined in FHIR type system.
Short	Base for all types and resources
Control	1..1
Is Modifier	false
XML Format	In the XML format, this property has the namespace `urn:hl7-org:v3`.
Invariants	ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`)
2. Observation.classCode
Comments	SHALL contain exactly one [1..1] @classCode="OBS" Observation (CodeSystem: HL7ActClass urn:oid:2.16.840.1.113883.5.6 STATIC) (CONF:4537-7130).
Control	1..1
Binding	The codes SHALL be taken from ActClassObservation
Type	code(cs: Coded Simple Value)
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
XML Format	In the XML format, this property is represented as an attribute.
Fixed Value	OBS
4. Observation.moodCode
Comments	SHALL contain exactly one [1..1] @moodCode="EVN" Event (CodeSystem: HL7ActMood urn:oid:2.16.840.1.113883.5.1001 STATIC) (CONF:4537-7131).
Control	1..1
Type	code(cs: Coded Simple Value)
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
XML Format	In the XML format, this property is represented as an attribute.
Fixed Value	EVN
6. Observation.negationInd
Control	0..1
Type	boolean(bl: Boolean)
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
XML Format	In the XML format, this property is represented as an attribute.
8. Observation.realmCode
Control	0..*
Type	http://hl7.org/cda/stds/core/StructureDefinition/CS
10. Observation.typeId
Control	0..1
Type	http://hl7.org/cda/stds/core/StructureDefinition/II
12. Observation.templateId
Definition	When valued in an instance, this attribute signals the imposition of a set of template-defined constraints. The value of this attribute provides a unique identifier for the templates in question
Comments	SHALL contain exactly one [1..1] templateId (CONF:4537-7136) such that it
Control	1..*
Type	http://hl7.org/cda/stds/core/StructureDefinition/II
Slicing	This element introduces a set of slices on `Observation.templateId`. The slices are unordered and Open, and can be differentiated using the following discriminators: , and can be differentiated using the following discriminators: value @ root value @ extension
14. Observation.templateId:templateId1
Slice Name	templateId1
Definition	When valued in an instance, this attribute signals the imposition of a set of template-defined constraints. The value of this attribute provides a unique identifier for the templates in question
Short	templateId
Control	1..1
Type	http://hl7.org/cda/stds/core/StructureDefinition/II
16. Observation.templateId:templateId1.nullFlavor
Definition	If a value is an exceptional value (NULL-value), this specifies in what way and why proper information is missing.
Control	0..1
Binding	The codes SHALL be taken from NullFlavor
Type	code(cs: Coded Simple Value)
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
XML Format	In the XML format, this property is represented as an attribute.
Label	Exceptional Value Detail
18. Observation.templateId:templateId1.assigningAuthorityName
Definition	A human readable name or mnemonic for the assigning authority. The Assigning Authority Name has no computational value. The purpose of a Assigning Authority Name is to assist an unaided human interpreter of an II value to interpret the authority. Note: no automated processing must depend on the assigning authority name to be present in any form.
Control	0..1
Type	string(st: Character String)
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
XML Format	In the XML format, this property is represented as an attribute.
Label	Assigning Authority Name
20. Observation.templateId:templateId1.displayable
Definition	Specifies if the identifier is intended for human display and data entry (displayable = true) as opposed to pure machine interoperation (displayable = false).
Control	0..1
Type	boolean(bl: Boolean)
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
XML Format	In the XML format, this property is represented as an attribute.
Label	Displayable
22. Observation.templateId:templateId1.root
Definition	A unique identifier that guarantees the global uniqueness of the instance identifier. The root alone may be the entire instance identifier.
Comments	SHALL contain exactly one [1..1] @root="2.16.840.1.113883.10.20.22.4.2" (CONF:4537-9138).
Control	1..1
Type	string(oid: ISO Object Identifier, uuid: DCE Universal Unique Identifier, ruid: HL7 Reserved Identifier Scheme)
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
XML Format	In the XML format, this property is represented as an attribute.
Label	Root
Pattern Value	2.16.840.1.113883.10.20.22.4.2
24. Observation.templateId:templateId1.extension
Definition	A character string as a unique identifier within the scope of the identifier root.
Comments	SHALL contain exactly one [1..1] @extension="2023-05-01" (CONF:4537-32575).
Control	1..1
Type	string(st: Character String)
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
XML Format	In the XML format, this property is represented as an attribute.
Label	Extension
Pattern Value	2023-05-01
26. Observation.id
Comments	SHALL contain at least one [1..*] id (CONF:4537-7137).
Control	1..*
Type	http://hl7.org/cda/stds/core/StructureDefinition/II
28. Observation.code
Comments	SHALL contain exactly one [1..1] code, which SHOULD be selected from CodeSystem LOINC (urn:oid:2.16.840.1.113883.6.1) (CONF:4537-7133).
Control	1..1
Binding	Unless not suitable, these codes SHALL be taken from ObservationType
Type	http://hl7.org/cda/stds/core/StructureDefinition/CD
XML Format	The type of this property is determined using the `xsi:type`attribute.
Invariants	4537-19212: This code SHOULD be a code from the LOINC that identifies the result observation. If an appropriate LOINC code does not exist, then the local code for this result SHALL be sent (CONF:4537-19212). ()
30. Observation.derivationExpr
Control	0..1
Type	http://hl7.org/cda/stds/core/StructureDefinition/ST
32. Observation.text
Control	0..1
Type	http://hl7.org/cda/stds/core/StructureDefinition/ED
XML Format	The type of this property is determined using the `xsi:type`attribute.
34. Observation.statusCode
Comments	SHALL contain exactly one [1..1] statusCode (CONF:4537-7134).
Control	1..1
Binding	The codes SHALL be taken from ActStatus
Type	http://hl7.org/cda/stds/core/StructureDefinition/CS
36. Observation.statusCode.nullFlavor
Definition	If a value is an exceptional value (NULL-value), this specifies in what way and why proper information is missing.
Control	0..1
Binding	The codes SHALL be taken from NullFlavor
Type	code(cs: Coded Simple Value)
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
XML Format	In the XML format, this property is represented as an attribute.
Label	Exceptional Value Detail
38. Observation.statusCode.code
Definition	The plain code symbol defined by the code system. For example, "784.0" is the code symbol of the ICD-9 code "784.0" for headache.
Comments	This statusCode SHALL contain exactly one [1..1] @code, which SHALL be selected from ValueSet Result Status urn:oid:2.16.840.1.113883.11.20.9.39 STATIC (CONF:4537-14849).
Control	1..1
Binding	The codes SHALL be taken from Result Status
Type	code(cs: Coded Simple Value)
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
XML Format	In the XML format, this property is represented as an attribute.
Label	Code
40. Observation.statusCode.codeSystem
Definition	Specifies the code system that defines the code.
Control	0..0
Type	string(oid: ISO Object Identifier, uuid: DCE Universal Unique Identifier, ruid: HL7 Reserved Identifier Scheme)
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
XML Format	In the XML format, this property is represented as an attribute.
Label	Code System
42. Observation.statusCode.codeSystemName
Definition	The common name of the coding system.
Control	0..0
Type	string(st: Character String)
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
XML Format	In the XML format, this property is represented as an attribute.
Label	Code System Name
44. Observation.statusCode.codeSystemVersion
Definition	If applicable, a version descriptor defined specifically for the given code system.
Control	0..0
Type	string(st: Character String)
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
XML Format	In the XML format, this property is represented as an attribute.
Label	Code System Version
46. Observation.statusCode.displayName
Definition	A name or title for the code, under which the sending system shows the code value to its users.
Control	0..0
Type	string(st: Character String)
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
XML Format	In the XML format, this property is represented as an attribute.
Label	Display Name
48. Observation.statusCode.sdtcValueSet
Definition	The valueSet extension adds an attribute for elements with a CD dataType which indicates the particular value set constraining the coded concept.
Control	0..1
Type	string(oid: ISO Object Identifier)
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
XML Format	In the XML format, this property is represented as an attribute.In the XML format, this property has the namespace `urn:hl7-org:sdtc`.In the XML format, this property has the actual name`valueSet`.
50. Observation.statusCode.sdtcValueSetVersion
Definition	The valueSetVersion extension adds an attribute for elements with a CD dataType which indicates the version of the particular value set constraining the coded concept.
Control	0..1
Type	string(st: Character String)
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
XML Format	In the XML format, this property is represented as an attribute.In the XML format, this property has the namespace `urn:hl7-org:sdtc`.In the XML format, this property has the actual name`valueSetVersion`.
52. Observation.statusCode.originalText
Definition	The text or phrase used as the basis for the coding.
Control	0..0
Type	http://hl7.org/cda/stds/core/StructureDefinition/ED
Label	Original Text
54. Observation.statusCode.qualifier
Definition	Specifies additional codes that increase the specificity of the the primary code.
Control	0..0
Type	http://hl7.org/cda/stds/core/StructureDefinition/CR
Label	Qualifier
56. Observation.statusCode.translation
Definition	A set of other concept descriptors that translate this concept descriptor into other code systems.
Control	0..0
Type	http://hl7.org/cda/stds/core/StructureDefinition/CD
XML Format	The type of this property is determined using the `xsi:type`attribute.
Label	Translation
58. Observation.effectiveTime
Short	Represents the clinically relevant time of the measurement (e.g., the time a blood pressure reading is obtained, the time the blood sample was obtained for a chemistry test).
Comments	SHALL contain exactly one [1..1] effectiveTime (CONF:4537-7140).
Control	1..1
Type	http://hl7.org/cda/stds/core/StructureDefinition/IVL-TS
60. Observation.priorityCode
Control	0..1
Binding	Unless not suitable, these codes SHALL be taken from ActPriority
Type	http://hl7.org/cda/stds/core/StructureDefinition/CE
62. Observation.repeatNumber
Control	0..1
Type	http://hl7.org/cda/stds/core/StructureDefinition/IVL-INT
64. Observation.languageCode
Control	0..1
Binding	The codes SHALL be taken from HumanLanguage
Type	http://hl7.org/cda/stds/core/StructureDefinition/CS
66. Observation.value
Comments	SHALL contain exactly one [1..1] value (CONF:4537-7143).
Control	1..1
Type	Choice of: http://hl7.org/cda/stds/core/StructureDefinition/ANY, http://hl7.org/cda/stds/core/StructureDefinition/BL, http://hl7.org/cda/stds/core/StructureDefinition/ED, http://hl7.org/cda/stds/core/StructureDefinition/ST, http://hl7.org/cda/stds/core/StructureDefinition/CD, http://hl7.org/cda/stds/core/StructureDefinition/CV, http://hl7.org/cda/stds/core/StructureDefinition/CE, http://hl7.org/cda/stds/core/StructureDefinition/SC, http://hl7.org/cda/stds/core/StructureDefinition/II, http://hl7.org/cda/stds/core/StructureDefinition/TEL, http://hl7.org/cda/stds/core/StructureDefinition/AD, http://hl7.org/cda/stds/core/StructureDefinition/EN, http://hl7.org/cda/stds/core/StructureDefinition/INT, http://hl7.org/cda/stds/core/StructureDefinition/REAL, http://hl7.org/cda/stds/core/StructureDefinition/PQ, http://hl7.org/cda/stds/core/StructureDefinition/MO, http://hl7.org/cda/stds/core/StructureDefinition/TS, http://hl7.org/cda/stds/core/StructureDefinition/IVL-PQ, http://hl7.org/cda/stds/core/StructureDefinition/IVL-TS, http://hl7.org/cda/stds/core/StructureDefinition/PIVL-TS, http://hl7.org/cda/stds/core/StructureDefinition/EIVL-TS, http://hl7.org/cda/stds/core/StructureDefinition/SXPR-TS, http://hl7.org/cda/stds/core/StructureDefinition/RTO-PQ-PQ
XML Format	The type of this property is determined using the `xsi:type`attribute.
Invariants	4537-31484: If Observation/value is a physical quantity (xsi:type="PQ"): This value SHALL contain exactly one [1..1] @unit, which SHOULD be selected from ValueSet UnitsOfMeasureCaseSensitive urn:oid:2.16.840.1.113883.1.11.12839 DYNAMIC. Note: Base CDA requires that all @unit values SHALL be drawn from UCUM. () 4537-31866: A coded or physical quantity value MAY contain zero or more [0..&ast;] translations, which can be used to represent the original results as output by the lab (CONF:4537-31866). () 4537-32610: If Observation/value is a CD (xsi:type="CD") the value SHOULD be SNOMED-CT (CONF:4537-32610). ()
68. Observation.interpretationCode
Comments	SHOULD contain zero or more [0..*] interpretationCode, which SHALL be selected from ValueSet Observation Interpretation (HL7) urn:oid:2.16.840.1.113883.1.11.78 DYNAMIC (CONF:4537-7147).
Control	0..*
Binding	The codes SHALL be taken from Observation Interpretation (HL7)
Type	http://hl7.org/cda/stds/core/StructureDefinition/CE
70. Observation.methodCode
Comments	MAY contain zero or one [0..1] methodCode (CONF:4537-7148).
Control	0..1
Binding	Unless not suitable, these codes SHALL be taken from ObservationMethod
Type	http://hl7.org/cda/stds/core/StructureDefinition/CE
72. Observation.targetSiteCode
Definition	Drawn from concept domain ActSite
Comments	MAY contain zero or one [0..1] targetSiteCode (CONF:4537-7153).
Control	0..1
Type	http://hl7.org/cda/stds/core/StructureDefinition/CD
74. Observation.subject
Control	0..1
Type	http://hl7.org/cda/stds/core/StructureDefinition/Subject
76. Observation.specimen
Comments	MAY contain zero or more [0..*] specimen (CONF:4537-32611).
Control	0..*
Type	http://hl7.org/cda/stds/core/StructureDefinition/Specimen
78. Observation.specimen.nullFlavor
Definition	If a value is an exceptional value (NULL-value), this specifies in what way and why proper information is missing.
Control	0..1
Binding	The codes SHALL be taken from NullFlavor
Type	code(cs: Coded Simple Value)
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
XML Format	In the XML format, this property is represented as an attribute.
Label	Exceptional Value Detail
80. Observation.specimen.realmCode
Definition	When valued in an instance, this attribute signals the imposition of realm-specific constraints. The value of this attribute identifies the realm in question
Control	0..*
Type	http://hl7.org/cda/stds/core/StructureDefinition/CS
82. Observation.specimen.typeId
Definition	When valued in an instance, this attribute signals the imposition of constraints defined in an HL7-specified message type. This might be a common type (also known as CMET in the messaging communication environment), or content included within a wrapper. The value of this attribute provides a unique identifier for the type in question.
Control	0..1
Type	http://hl7.org/cda/stds/core/StructureDefinition/II
84. Observation.specimen.templateId
Definition	When valued in an instance, this attribute signals the imposition of a set of template-defined constraints. The value of this attribute provides a unique identifier for the templates in question
Control	0..*
Type	http://hl7.org/cda/stds/core/StructureDefinition/II
86. Observation.specimen.typeCode
Control	0..1
Binding	The codes SHALL be taken from ParticipationTargetDirect
Type	code(cs: Coded Simple Value)
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
XML Format	In the XML format, this property is represented as an attribute.
Fixed Value	SPC
88. Observation.specimen.specimenRole
Comments	The specimen, if present, SHALL contain exactly one [1..1] specimenRole (CONF:4537-32612).
Control	1..1
Type	http://hl7.org/cda/stds/core/StructureDefinition/SpecimenRole
90. Observation.specimen.specimenRole.classCode
Control	0..1
Binding	The codes SHALL be taken from RoleClassSpecimen
Type	code(cs: Coded Simple Value)
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
XML Format	In the XML format, this property is represented as an attribute.
Fixed Value	SPEC
92. Observation.specimen.specimenRole.templateId
Definition	When valued in an instance, this attribute signals the imposition of a set of template-defined constraints. The value of this attribute provides a unique identifier for the templates in question
Control	0..*
Type	http://hl7.org/cda/stds/core/StructureDefinition/II
94. Observation.specimen.specimenRole.id
Control	0..*
Type	http://hl7.org/cda/stds/core/StructureDefinition/II
96. Observation.specimen.specimenRole.sdtcIdentifiedBy
Control	0..*
Type	http://hl7.org/cda/stds/core/StructureDefinition/IdentifiedBy
XML Format	In the XML format, this property has the namespace `urn:hl7-org:sdtc`.In the XML format, this property has the actual name`identifiedBy`.
98. Observation.specimen.specimenRole.specimenPlayingEntity
Comments	This specimenRole SHALL contain exactly one [1..1] specimenPlayingEntity (CONF:4537-32613).
Control	1..1
Type	http://hl7.org/cda/stds/core/StructureDefinition/PlayingEntity
100. Observation.specimen.specimenRole.specimenPlayingEntity.classCode
Control	1..1
Binding	The codes SHALL be taken from EntityClassRoot
Type	code(cs: Coded Simple Value)
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
XML Format	In the XML format, this property is represented as an attribute.
Default Value	ENT
102. Observation.specimen.specimenRole.specimenPlayingEntity.determinerCode
Control	0..1
Binding	The codes SHALL be taken from EntityDeterminer
Type	code(cs: Coded Simple Value)
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
XML Format	In the XML format, this property is represented as an attribute.
Fixed Value	INSTANCE
104. Observation.specimen.specimenRole.specimenPlayingEntity.templateId
Definition	When valued in an instance, this attribute signals the imposition of a set of template-defined constraints. The value of this attribute provides a unique identifier for the templates in question
Control	0..*
Type	http://hl7.org/cda/stds/core/StructureDefinition/II
106. Observation.specimen.specimenRole.specimenPlayingEntity.code
Comments	This specimenPlayingEntity SHALL contain exactly one [1..1] code, which SHOULD be selected from ValueSet Specimen type urn:oid:2.16.840.1.113762.1.4.1099.54 DYNAMIC (CONF:4537-32614).
Control	1..1
Binding	The codes SHOULD be taken from VSAC 2.16.840.1.113762.1.4.1099.54
Type	http://hl7.org/cda/stds/core/StructureDefinition/CE
108. Observation.specimen.specimenRole.specimenPlayingEntity.quantity
Control	0..*
Type	http://hl7.org/cda/stds/core/StructureDefinition/PQ
110. Observation.specimen.specimenRole.specimenPlayingEntity.name
Control	0..*
Type	http://hl7.org/cda/stds/core/StructureDefinition/PN
112. Observation.specimen.specimenRole.specimenPlayingEntity.sdtcBirthTime
Control	0..1
Type	http://hl7.org/cda/stds/core/StructureDefinition/TS
XML Format	In the XML format, this property has the namespace `urn:hl7-org:sdtc`.In the XML format, this property has the actual name`birthTime`.
114. Observation.specimen.specimenRole.specimenPlayingEntity.desc
Control	0..1
Type	http://hl7.org/cda/stds/core/StructureDefinition/ED
116. Observation.performer
Control	0..*
Type	http://hl7.org/cda/stds/core/StructureDefinition/Performer2
118. Observation.author
Definition	Base definition for all types defined in FHIR type system.
Short	Base for all types and resources
Comments	SHOULD contain zero or more [0..*] Author Participation (identifier: urn:oid:2.16.840.1.113883.10.20.22.4.119) (CONF:4537-7149).
Control	0..*
Type	http://hl7.org/cda/stds/core/StructureDefinition/Author(Author Participation)
Is Modifier	false
Invariants	ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`)
120. Observation.informant
Control	0..*
Type	http://hl7.org/cda/stds/core/StructureDefinition/Informant
122. Observation.participant
Control	0..*
Type	http://hl7.org/cda/stds/core/StructureDefinition/Participant2
124. Observation.entryRelationship
Control	0..*
Type	http://hl7.org/cda/stds/core/StructureDefinition/EntryRelationship
126. Observation.reference
Control	0..*
Type	http://hl7.org/cda/stds/core/StructureDefinition/Reference
128. Observation.precondition
Control	0..*
Type	http://hl7.org/cda/stds/core/StructureDefinition/Precondition
130. Observation.referenceRange
Definition	Relates an Observation to the ObservationRange class, where the expected range of values for a particular observation can be specified.
Comments	SHOULD contain zero or more [0..*] referenceRange (CONF:4537-7150).
Control	0..*
Type	http://hl7.org/cda/stds/core/StructureDefinition/InfrastructureRoot
Invariants	ele-1: All FHIR elements must have a @value or children (`hasValue() or (children().count() > id.count())`)
132. Observation.referenceRange.nullFlavor
Definition	If a value is an exceptional value (NULL-value), this specifies in what way and why proper information is missing.
Control	0..1
Binding	The codes SHALL be taken from NullFlavor
Type	code(cs: Coded Simple Value)
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
XML Format	In the XML format, this property is represented as an attribute.
Label	Exceptional Value Detail
134. Observation.referenceRange.realmCode
Definition	When valued in an instance, this attribute signals the imposition of realm-specific constraints. The value of this attribute identifies the realm in question
Control	0..*
Type	http://hl7.org/cda/stds/core/StructureDefinition/CS
136. Observation.referenceRange.typeId
Definition	When valued in an instance, this attribute signals the imposition of constraints defined in an HL7-specified message type. This might be a common type (also known as CMET in the messaging communication environment), or content included within a wrapper. The value of this attribute provides a unique identifier for the type in question.
Control	0..1
Type	http://hl7.org/cda/stds/core/StructureDefinition/II
138. Observation.referenceRange.templateId
Definition	When valued in an instance, this attribute signals the imposition of a set of template-defined constraints. The value of this attribute provides a unique identifier for the templates in question
Control	0..*
Type	http://hl7.org/cda/stds/core/StructureDefinition/II
140. Observation.referenceRange.typeCode
Control	0..1
Binding	The codes SHALL be taken from ActRelationshipPertains
Type	code(cs: Coded Simple Value)
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
XML Format	In the XML format, this property is represented as an attribute.
Fixed Value	REFV
142. Observation.referenceRange.observationRange
Comments	The referenceRange, if present, SHALL contain exactly one [1..1] observationRange (CONF:4537-7151).
Control	1..1
Type	http://hl7.org/cda/stds/core/StructureDefinition/ObservationRange
144. Observation.referenceRange.observationRange.classCode
Control	1..1
Binding	The codes SHALL be taken from ActClassObservation
Type	code(cs: Coded Simple Value)
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
XML Format	In the XML format, this property is represented as an attribute.
Default Value	OBS
146. Observation.referenceRange.observationRange.moodCode
Control	0..1
Binding	The codes SHALL be taken from ActMoodPredicate
Type	code(cs: Coded Simple Value)
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
XML Format	In the XML format, this property is represented as an attribute.
Fixed Value	EVN.CRT
148. Observation.referenceRange.observationRange.templateId
Definition	When valued in an instance, this attribute signals the imposition of a set of template-defined constraints. The value of this attribute provides a unique identifier for the templates in question
Control	0..*
Type	http://hl7.org/cda/stds/core/StructureDefinition/II
150. Observation.referenceRange.observationRange.code
Comments	This observationRange SHALL NOT contain [0..0] code (CONF:4537-7152).
Control	0..0
Binding	Unless not suitable, these codes SHALL be taken from v3 Code System ActCode
Type	http://hl7.org/cda/stds/core/StructureDefinition/CD
152. Observation.referenceRange.observationRange.text
Control	0..1
Type	http://hl7.org/cda/stds/core/StructureDefinition/ED
154. Observation.referenceRange.observationRange.value
Comments	This observationRange SHALL contain exactly one [1..1] value (CONF:4537-32175).
Control	1..1
Type	Choice of: http://hl7.org/cda/stds/core/StructureDefinition/BL, http://hl7.org/cda/stds/core/StructureDefinition/ED, http://hl7.org/cda/stds/core/StructureDefinition/ST, http://hl7.org/cda/stds/core/StructureDefinition/CD, http://hl7.org/cda/stds/core/StructureDefinition/CV, http://hl7.org/cda/stds/core/StructureDefinition/CE, http://hl7.org/cda/stds/core/StructureDefinition/SC, http://hl7.org/cda/stds/core/StructureDefinition/II, http://hl7.org/cda/stds/core/StructureDefinition/TEL, http://hl7.org/cda/stds/core/StructureDefinition/AD, http://hl7.org/cda/stds/core/StructureDefinition/EN, http://hl7.org/cda/stds/core/StructureDefinition/INT, http://hl7.org/cda/stds/core/StructureDefinition/REAL, http://hl7.org/cda/stds/core/StructureDefinition/PQ, http://hl7.org/cda/stds/core/StructureDefinition/MO, http://hl7.org/cda/stds/core/StructureDefinition/TS, http://hl7.org/cda/stds/core/StructureDefinition/IVL-PQ, http://hl7.org/cda/stds/core/StructureDefinition/IVL-TS, http://hl7.org/cda/stds/core/StructureDefinition/PIVL-TS, http://hl7.org/cda/stds/core/StructureDefinition/EIVL-TS, http://hl7.org/cda/stds/core/StructureDefinition/SXPR-TS
XML Format	The type of this property is determined using the `xsi:type`attribute.
156. Observation.referenceRange.observationRange.interpretationCode
Control	0..1
Binding	The codes SHALL be taken from ObservationInterpretation
Type	http://hl7.org/cda/stds/core/StructureDefinition/CE