FHIR Extensions Pack, published by HL7 International / FHIR Infrastructure. This guide is not an authorized publication; it is the continuous build for version 5.3.0-ballot-tc1 built by the FHIR (HL7® FHIR® Standard) CI Build. This version is based on the current content of https://github.com/HL7/fhir-extensions/ and changes regularly. See the Directory of published versions
| Page standards status: Trial-use | Maturity Level: 3 | 
Definitions for the patient-animal extension.
Guidance on how to interpret the contents of this table can be foundhere
| 0. Extension | |
| Definition | This patient is known to be an animal. Optional Extension Element - found in all resources. | 
| Short | This patient is known to be an animal (non-human)Optional Extensions Element | 
| Comments | The absence of the animal extension does not imply that the patient is a human. If a system requires such a positive assertion that the patient is human, an extension will be required. (Do not use a species of homo-sapiens in animal species, as this would incorrectly infer that the patient is an animal). | 
| Control | 0..1* | 
| Is Modifier | false | 
| Invariants | ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count())) ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists()) | 
| 2. Extension.extension | |
| Definition | May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and managable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. | 
| Short | Additional content defined by implementations | 
| Comments | There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone. | 
| Control | 10..* | 
| Type | Extension | 
| Is Modifier | false | 
| Summary | false | 
| Alternate Names | extensions, user content | 
| Invariants | ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count())) ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists()) | 
| Slicing | This element introduces a set of slices on Extension.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators: | 
| 4. Extension.extension:species | |
| Slice Name | species | 
| Definition | Identifies the high level taxonomic categorization of the kind of animal. | 
| Short | The animal species. E.g. Dog, Cow.Additional content defined by implementations | 
| Comments | If the patient is non-human, at least a species SHALL be specified. Species SHALL be a widely recognized taxonomic classification. It might or might not be Linnaean taxonomy and might or might not be at the level of species. If the level is finer than species--such as a breed code--the code system used SHALL allow inference of the species. (The common example is that the word "Hereford" does not allow inference of the species Bos taurus, because there is a Hereford pig breed, but the SNOMED CT code for "Hereford Cattle Breed" does.). | 
| Control | 10..1* | 
| Type | Extension | 
| Is Modifier | false | 
| Summary | false | 
| Invariants | ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count())) ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists()) | 
| 6. Extension.extension:species.extension | |
| Definition | An Extension May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and managable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. | 
| Short | ExtensionAdditional content defined by implementations | 
| Comments | There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone. | 
| Control | 0..0* | 
| Type | Extension | 
| Is Modifier | false | 
| Summary | false | 
| Alternate Names | extensions, user content | 
| Invariants | ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count())) ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists()) | 
| Slicing | This element introduces a set of slices on Extension.extension.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators: | 
| 8. Extension.extension:species.url | |
| Definition | Source of the definition for the extension code - a logical name or a URL. | 
| Short | identifies the meaning of the extension | 
| Comments | The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension. | 
| Control | 1..1 | 
| Type | uri | 
| Is Modifier | false | 
| 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. | 
| Summary | false | 
| Fixed Value | species | 
| 10. Extension.extension:species.value[x] | |
| Definition | Value of extension - must be one of a constrained set of the data types (see Extensibility for a list). | 
| Short | Value of extension | 
| Control | 10..1 This element is affected by the following invariants: ext-1 | 
| Binding | For example codes, see For codes, see  AnimalSpecies (example to http://hl7.org/fhir/ValueSet/animal-species)The species of an animal. | 
| Type | CodeableConcept, date, Meta, Address, Attachment, integer, Count, DataRequirement, Dosage, uuid, Identifier, RatioRange, Coding, SampledData, id, positiveInt, Distance, Availability, integer64, Period, Duration, canonical, Range, RelatedArtifact, base64Binary, UsageContext, Timing, decimal, ExtendedContactDetail, ParameterDefinition, dateTime, code, string, oid, instant, ContactPoint, HumanName, Money, markdown, Ratio, Age, Reference, TriggerDefinition, Quantity, uri, url, Annotation, ContactDetail, boolean, Expression, CodeableReference, Signature, unsignedInt, time | 
| [x] Note | SeeChoice of Data Typesfor further information about how to use [x] | 
| Is Modifier | false | 
| Summary | false | 
| Invariants | ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count())) | 
| 12. Extension.extension:breed | |
| Slice Name | breed | 
| Definition | Identifies the detailed categorization of the kind of animal. | 
| Short | The animal breed. E.g. Poodle, Angus.Additional content defined by implementations | 
| Comments | Breed MAY be used to provide further taxonomic or non-taxonomic classification. It may involve local or proprietary designation--such as commercial strain--and/or additional information such as production type. | 
| Control | 0..1* | 
| Type | Extension | 
| Is Modifier | false | 
| Summary | false | 
| Invariants | ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count())) ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists()) | 
| 14. Extension.extension:breed.extension | |
| Definition | An Extension May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and managable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. | 
| Short | ExtensionAdditional content defined by implementations | 
| Comments | There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone. | 
| Control | 0..0* | 
| Type | Extension | 
| Is Modifier | false | 
| Summary | false | 
| Alternate Names | extensions, user content | 
| Invariants | ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count())) ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists()) | 
| Slicing | This element introduces a set of slices on Extension.extension.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators: | 
| 16. Extension.extension:breed.url | |
| Definition | Source of the definition for the extension code - a logical name or a URL. | 
| Short | identifies the meaning of the extension | 
| Comments | The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension. | 
| Control | 1..1 | 
| Type | uri | 
| Is Modifier | false | 
| 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. | 
| Summary | false | 
| Fixed Value | breed | 
| 18. Extension.extension:breed.value[x] | |
| Definition | Value of extension - must be one of a constrained set of the data types (see Extensibility for a list). | 
| Short | Value of extension | 
| Control | 10..1 This element is affected by the following invariants: ext-1 | 
| Binding | For example codes, see For codes, see  AnimalBreeds (example to http://hl7.org/fhir/ValueSet/animal-breeds)The breed of an animal. | 
| Type | CodeableConcept, date, Meta, Address, Attachment, integer, Count, DataRequirement, Dosage, uuid, Identifier, RatioRange, Coding, SampledData, id, positiveInt, Distance, Availability, integer64, Period, Duration, canonical, Range, RelatedArtifact, base64Binary, UsageContext, Timing, decimal, ExtendedContactDetail, ParameterDefinition, dateTime, code, string, oid, instant, ContactPoint, HumanName, Money, markdown, Ratio, Age, Reference, TriggerDefinition, Quantity, uri, url, Annotation, ContactDetail, boolean, Expression, CodeableReference, Signature, unsignedInt, time | 
| [x] Note | SeeChoice of Data Typesfor further information about how to use [x] | 
| Is Modifier | false | 
| Summary | false | 
| Invariants | ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count())) | 
| 20. Extension.extension:genderStatus | |
| Slice Name | genderStatus | 
| Definition | Indicates the current state of the animal's reproductive organs. | 
| Short | The status of the animal's reproductive parts. E.g. Neutered, Intact.Additional content defined by implementations | 
| Control | 0..1* | 
| Type | Extension | 
| Is Modifier | false | 
| Summary | false | 
| Invariants | ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count())) ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists()) | 
| 22. Extension.extension:genderStatus.extension | |
| Definition | An Extension May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and managable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. | 
| Short | ExtensionAdditional content defined by implementations | 
| Comments | There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone. | 
| Control | 0..0* | 
| Type | Extension | 
| Is Modifier | false | 
| Summary | false | 
| Alternate Names | extensions, user content | 
| Invariants | ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count())) ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists()) | 
| Slicing | This element introduces a set of slices on Extension.extension.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators: | 
| 24. Extension.extension:genderStatus.url | |
| Definition | Source of the definition for the extension code - a logical name or a URL. | 
| Short | identifies the meaning of the extension | 
| Comments | The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension. | 
| Control | 1..1 | 
| Type | uri | 
| Is Modifier | false | 
| 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. | 
| Summary | false | 
| Fixed Value | genderStatus | 
| 26. Extension.extension:genderStatus.value[x] | |
| Definition | Value of extension - must be one of a constrained set of the data types (see Extensibility for a list). | 
| Short | Value of extension | 
| Control | 10..1 This element is affected by the following invariants: ext-1 | 
| Binding | For example codes, see For codes, see  GenderStatus (example to http://hl7.org/fhir/ValueSet/animal-genderstatus)The state of the animal's reproductive organs. | 
| Type | CodeableConcept, date, Meta, Address, Attachment, integer, Count, DataRequirement, Dosage, uuid, Identifier, RatioRange, Coding, SampledData, id, positiveInt, Distance, Availability, integer64, Period, Duration, canonical, Range, RelatedArtifact, base64Binary, UsageContext, Timing, decimal, ExtendedContactDetail, ParameterDefinition, dateTime, code, string, oid, instant, ContactPoint, HumanName, Money, markdown, Ratio, Age, Reference, TriggerDefinition, Quantity, uri, url, Annotation, ContactDetail, boolean, Expression, CodeableReference, Signature, unsignedInt, time | 
| [x] Note | SeeChoice of Data Typesfor further information about how to use [x] | 
| Is Modifier | false | 
| Summary | false | 
| Invariants | ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count())) | 
| 28. Extension.url | |
| Definition | Source of the definition for the extension code - a logical name or a URL. | 
| Short | identifies the meaning of the extension | 
| Comments | The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension. | 
| Control | 1..1 | 
| Type | uri | 
| Is Modifier | false | 
| XML Format | In the XML format, this property is represented as an attribute. | 
| Summary | false | 
| Fixed Value | http://hl7.org/fhir/StructureDefinition/patient-animal | 
| 30. Extension.value[x] | |
| Definition | Value of extension - must be one of a constrained set of the data types (see Extensibility for a list). | 
| Short | Value of extension | 
| Control | 0..01 This element is affected by the following invariants: ext-1 | 
| Type | Choice of: base64Binary, boolean, canonical, code, date, dateTime, decimal, id, instant, integer, integer64, markdown, oid, positiveInt, string, time, unsignedInt, uri, url, uuid, Address, Age, Annotation, Attachment, CodeableConcept, CodeableReference, Coding, ContactPoint, Count, Distance, Duration, HumanName, Identifier, Money, Period, Quantity, Range, Ratio, RatioRange, Reference, SampledData, Signature, Timing, ContactDetail, DataRequirement, Expression, ParameterDefinition, RelatedArtifact, TriggerDefinition, UsageContext, Availability, ExtendedContactDetail, Dosage, Meta | 
| Is Modifier | false | 
| Primitive Value | This primitive element may be present, or absent, or replaced by an extension | 
| Summary | false | 
| Invariants | ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count())) | 
Guidance on how to interpret the contents of this table can be foundhere
| 0. Extension | |
| Definition | This patient is known to be an animal. | 
| Short | This patient is known to be an animal (non-human) | 
| Comments | The absence of the animal extension does not imply that the patient is a human. If a system requires such a positive assertion that the patient is human, an extension will be required. (Do not use a species of homo-sapiens in animal species, as this would incorrectly infer that the patient is an animal). | 
| Control | 0..1 | 
| 2. Extension.extension:species | |
| Slice Name | species | 
| Definition | Identifies the high level taxonomic categorization of the kind of animal. | 
| Short | The animal species. E.g. Dog, Cow. | 
| Comments | If the patient is non-human, at least a species SHALL be specified. Species SHALL be a widely recognized taxonomic classification. It might or might not be Linnaean taxonomy and might or might not be at the level of species. If the level is finer than species--such as a breed code--the code system used SHALL allow inference of the species. (The common example is that the word "Hereford" does not allow inference of the species Bos taurus, because there is a Hereford pig breed, but the SNOMED CT code for "Hereford Cattle Breed" does.). | 
| Control | 1..1 | 
| Type | Extension | 
| 4. Extension.extension:species.extension | |
| Control | 0..0 | 
| 6. Extension.extension:species.url | |
| Type | uri | 
| Primitive Value | This primitive element may be present, or absent, or replaced by an extension | 
| Fixed Value | species | 
| 8. Extension.extension:species.value[x] | |
| Control | 1..? | 
| Binding | For example codes, see  AnimalSpecies (example to http://hl7.org/fhir/ValueSet/animal-species)The species of an animal. | 
| Type | CodeableConcept | 
| [x] Note | SeeChoice of Data Typesfor further information about how to use [x] | 
| 10. Extension.extension:breed | |
| Slice Name | breed | 
| Definition | Identifies the detailed categorization of the kind of animal. | 
| Short | The animal breed. E.g. Poodle, Angus. | 
| Comments | Breed MAY be used to provide further taxonomic or non-taxonomic classification. It may involve local or proprietary designation--such as commercial strain--and/or additional information such as production type. | 
| Control | 0..1 | 
| Type | Extension | 
| 12. Extension.extension:breed.extension | |
| Control | 0..0 | 
| 14. Extension.extension:breed.url | |
| Type | uri | 
| Primitive Value | This primitive element may be present, or absent, or replaced by an extension | 
| Fixed Value | breed | 
| 16. Extension.extension:breed.value[x] | |
| Control | 1..? | 
| Binding | For example codes, see  AnimalBreeds (example to http://hl7.org/fhir/ValueSet/animal-breeds)The breed of an animal. | 
| Type | CodeableConcept | 
| [x] Note | SeeChoice of Data Typesfor further information about how to use [x] | 
| 18. Extension.extension:genderStatus | |
| Slice Name | genderStatus | 
| Definition | Indicates the current state of the animal's reproductive organs. | 
| Short | The status of the animal's reproductive parts. E.g. Neutered, Intact. | 
| Control | 0..1 | 
| Type | Extension | 
| 20. Extension.extension:genderStatus.extension | |
| Control | 0..0 | 
| 22. Extension.extension:genderStatus.url | |
| Type | uri | 
| Primitive Value | This primitive element may be present, or absent, or replaced by an extension | 
| Fixed Value | genderStatus | 
| 24. Extension.extension:genderStatus.value[x] | |
| Control | 1..? | 
| Binding | For example codes, see  GenderStatus (example to http://hl7.org/fhir/ValueSet/animal-genderstatus)The state of the animal's reproductive organs. | 
| Type | CodeableConcept | 
| [x] Note | SeeChoice of Data Typesfor further information about how to use [x] | 
| 26. Extension.url | |
| Fixed Value | http://hl7.org/fhir/StructureDefinition/patient-animal | 
| 28. Extension.value[x] | |
| Control | 0..0 | 
Guidance on how to interpret the contents of this table can be foundhere
| 0. Extension | |
| Definition | This patient is known to be an animal. | 
| Short | This patient is known to be an animal (non-human) | 
| Comments | The absence of the animal extension does not imply that the patient is a human. If a system requires such a positive assertion that the patient is human, an extension will be required. (Do not use a species of homo-sapiens in animal species, as this would incorrectly infer that the patient is an animal). | 
| Control | 0..1 | 
| Is Modifier | false | 
| Invariants | ele-1: All FHIR elements must have a @value or children ( hasValue() or (children().count() > id.count()))ext-1: Must have either extensions or value[x], not both ( extension.exists() != value.exists()) | 
| 2. Extension.id | |
| Definition | Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces. | 
| Short | Unique id for inter-element referencing | 
| Control | 0..1 This element is affected by the following invariants: ele-1 | 
| Type | id | 
| Is Modifier | false | 
| XML Format | In the XML format, this property is represented as an attribute. | 
| Summary | false | 
| 4. Extension.extension | |
| Definition | May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and managable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. | 
| Short | Additional content defined by implementations | 
| Comments | There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone. | 
| Control | 1..* | 
| Type | Extension | 
| Is Modifier | false | 
| Summary | false | 
| Alternate Names | extensions, user content | 
| Invariants | ele-1: All FHIR elements must have a @value or children ( hasValue() or (children().count() > id.count()))ext-1: Must have either extensions or value[x], not both ( extension.exists() != value.exists()) | 
| Slicing | This element introduces a set of slices on Extension.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators: | 
| 6. Extension.extension:species | |
| Slice Name | species | 
| Definition | Identifies the high level taxonomic categorization of the kind of animal. | 
| Short | The animal species. E.g. Dog, Cow. | 
| Comments | If the patient is non-human, at least a species SHALL be specified. Species SHALL be a widely recognized taxonomic classification. It might or might not be Linnaean taxonomy and might or might not be at the level of species. If the level is finer than species--such as a breed code--the code system used SHALL allow inference of the species. (The common example is that the word "Hereford" does not allow inference of the species Bos taurus, because there is a Hereford pig breed, but the SNOMED CT code for "Hereford Cattle Breed" does.). | 
| Control | 1..1 | 
| Type | Extension | 
| Is Modifier | false | 
| Summary | false | 
| Invariants | ele-1: All FHIR elements must have a @value or children ( hasValue() or (children().count() > id.count()))ext-1: Must have either extensions or value[x], not both ( extension.exists() != value.exists()) | 
| 8. Extension.extension:species.id | |
| Definition | Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces. | 
| Short | Unique id for inter-element referencing | 
| Control | 0..1 This element is affected by the following invariants: ele-1 | 
| Type | id | 
| Is Modifier | false | 
| XML Format | In the XML format, this property is represented as an attribute. | 
| Summary | false | 
| 10. Extension.extension:species.extension | |
| Definition | An Extension | 
| Short | Extension | 
| Control | 0..0 | 
| Type | Extension | 
| Is Modifier | false | 
| Summary | false | 
| Invariants | ele-1: All FHIR elements must have a @value or children ( hasValue() or (children().count() > id.count()))ext-1: Must have either extensions or value[x], not both ( extension.exists() != value.exists()) | 
| Slicing | This element introduces a set of slices on Extension.extension.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators: | 
| 12. Extension.extension:species.url | |
| Definition | Source of the definition for the extension code - a logical name or a URL. | 
| Short | identifies the meaning of the extension | 
| Comments | The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension. | 
| Control | 1..1 | 
| Type | uri | 
| Is Modifier | false | 
| 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. | 
| Summary | false | 
| Fixed Value | species | 
| 14. Extension.extension:species.value[x] | |
| Definition | Value of extension - must be one of a constrained set of the data types (see Extensibility for a list). | 
| Short | Value of extension | 
| Control | 1..1 This element is affected by the following invariants: ext-1 | 
| Binding | For example codes, see  AnimalSpecies (example to http://hl7.org/fhir/ValueSet/animal-species)The species of an animal. | 
| Type | CodeableConcept | 
| [x] Note | SeeChoice of Data Typesfor further information about how to use [x] | 
| Is Modifier | false | 
| Summary | false | 
| Invariants | ele-1: All FHIR elements must have a @value or children ( hasValue() or (children().count() > id.count())) | 
| 16. Extension.extension:breed | |
| Slice Name | breed | 
| Definition | Identifies the detailed categorization of the kind of animal. | 
| Short | The animal breed. E.g. Poodle, Angus. | 
| Comments | Breed MAY be used to provide further taxonomic or non-taxonomic classification. It may involve local or proprietary designation--such as commercial strain--and/or additional information such as production type. | 
| Control | 0..1 | 
| Type | Extension | 
| Is Modifier | false | 
| Summary | false | 
| Invariants | ele-1: All FHIR elements must have a @value or children ( hasValue() or (children().count() > id.count()))ext-1: Must have either extensions or value[x], not both ( extension.exists() != value.exists()) | 
| 18. Extension.extension:breed.id | |
| Definition | Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces. | 
| Short | Unique id for inter-element referencing | 
| Control | 0..1 This element is affected by the following invariants: ele-1 | 
| Type | id | 
| Is Modifier | false | 
| XML Format | In the XML format, this property is represented as an attribute. | 
| Summary | false | 
| 20. Extension.extension:breed.extension | |
| Definition | An Extension | 
| Short | Extension | 
| Control | 0..0 | 
| Type | Extension | 
| Is Modifier | false | 
| Summary | false | 
| Invariants | ele-1: All FHIR elements must have a @value or children ( hasValue() or (children().count() > id.count()))ext-1: Must have either extensions or value[x], not both ( extension.exists() != value.exists()) | 
| Slicing | This element introduces a set of slices on Extension.extension.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators: | 
| 22. Extension.extension:breed.url | |
| Definition | Source of the definition for the extension code - a logical name or a URL. | 
| Short | identifies the meaning of the extension | 
| Comments | The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension. | 
| Control | 1..1 | 
| Type | uri | 
| Is Modifier | false | 
| 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. | 
| Summary | false | 
| Fixed Value | breed | 
| 24. Extension.extension:breed.value[x] | |
| Definition | Value of extension - must be one of a constrained set of the data types (see Extensibility for a list). | 
| Short | Value of extension | 
| Control | 1..1 This element is affected by the following invariants: ext-1 | 
| Binding | For example codes, see  AnimalBreeds (example to http://hl7.org/fhir/ValueSet/animal-breeds)The breed of an animal. | 
| Type | CodeableConcept | 
| [x] Note | SeeChoice of Data Typesfor further information about how to use [x] | 
| Is Modifier | false | 
| Summary | false | 
| Invariants | ele-1: All FHIR elements must have a @value or children ( hasValue() or (children().count() > id.count())) | 
| 26. Extension.extension:genderStatus | |
| Slice Name | genderStatus | 
| Definition | Indicates the current state of the animal's reproductive organs. | 
| Short | The status of the animal's reproductive parts. E.g. Neutered, Intact. | 
| Control | 0..1 | 
| Type | Extension | 
| Is Modifier | false | 
| Summary | false | 
| Invariants | ele-1: All FHIR elements must have a @value or children ( hasValue() or (children().count() > id.count()))ext-1: Must have either extensions or value[x], not both ( extension.exists() != value.exists()) | 
| 28. Extension.extension:genderStatus.id | |
| Definition | Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces. | 
| Short | Unique id for inter-element referencing | 
| Control | 0..1 This element is affected by the following invariants: ele-1 | 
| Type | id | 
| Is Modifier | false | 
| XML Format | In the XML format, this property is represented as an attribute. | 
| Summary | false | 
| 30. Extension.extension:genderStatus.extension | |
| Definition | An Extension | 
| Short | Extension | 
| Control | 0..0 | 
| Type | Extension | 
| Is Modifier | false | 
| Summary | false | 
| Invariants | ele-1: All FHIR elements must have a @value or children ( hasValue() or (children().count() > id.count()))ext-1: Must have either extensions or value[x], not both ( extension.exists() != value.exists()) | 
| Slicing | This element introduces a set of slices on Extension.extension.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators: | 
| 32. Extension.extension:genderStatus.url | |
| Definition | Source of the definition for the extension code - a logical name or a URL. | 
| Short | identifies the meaning of the extension | 
| Comments | The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension. | 
| Control | 1..1 | 
| Type | uri | 
| Is Modifier | false | 
| 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. | 
| Summary | false | 
| Fixed Value | genderStatus | 
| 34. Extension.extension:genderStatus.value[x] | |
| Definition | Value of extension - must be one of a constrained set of the data types (see Extensibility for a list). | 
| Short | Value of extension | 
| Control | 1..1 This element is affected by the following invariants: ext-1 | 
| Binding | For example codes, see  GenderStatus (example to http://hl7.org/fhir/ValueSet/animal-genderstatus)The state of the animal's reproductive organs. | 
| Type | CodeableConcept | 
| [x] Note | SeeChoice of Data Typesfor further information about how to use [x] | 
| Is Modifier | false | 
| Summary | false | 
| Invariants | ele-1: All FHIR elements must have a @value or children ( hasValue() or (children().count() > id.count())) | 
| 36. Extension.url | |
| Definition | Source of the definition for the extension code - a logical name or a URL. | 
| Short | identifies the meaning of the extension | 
| Comments | The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension. | 
| Control | 1..1 | 
| Type | uri | 
| Is Modifier | false | 
| XML Format | In the XML format, this property is represented as an attribute. | 
| Summary | false | 
| Fixed Value | http://hl7.org/fhir/StructureDefinition/patient-animal | 
| 38. Extension.value[x] | |
| Definition | Value of extension - must be one of a constrained set of the data types (see Extensibility for a list). | 
| Short | Value of extension | 
| Control | 0..0 This element is affected by the following invariants: ext-1 | 
| Type | Choice of: base64Binary, boolean, canonical, code, date, dateTime, decimal, id, instant, integer, integer64, markdown, oid, positiveInt, string, time, unsignedInt, uri, url, uuid, Address, Age, Annotation, Attachment, CodeableConcept, CodeableReference, Coding, ContactPoint, Count, Distance, Duration, HumanName, Identifier, Money, Period, Quantity, Range, Ratio, RatioRange, Reference, SampledData, Signature, Timing, ContactDetail, DataRequirement, Expression, ParameterDefinition, RelatedArtifact, TriggerDefinition, UsageContext, Availability, ExtendedContactDetail, Dosage, Meta | 
| Is Modifier | false | 
| Primitive Value | This primitive element may be present, or absent, or replaced by an extension | 
| Summary | false | 
| Invariants | ele-1: All FHIR elements must have a @value or children ( hasValue() or (children().count() > id.count())) |