> ## Documentation Index > Fetch the complete documentation index at: https://docs.metriport.com/llms.txt > Use this file to discover all available pages before exploring further. # Specimen > A sample to be used for analysis. ## Properties | Name | Required | Type | Description | | ------------------- | -------- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------ | | identifier | No | [Identifier](/medical-api/fhir/data-types/identifier)\[] | External Identifier | | accessionIdentifier | No | [Identifier](/medical-api/fhir/data-types/identifier) | Identifier assigned by the lab | | status | No | code | available / unavailable / unsatisfactory / entered-in-error | | type | No | [CodeableConcept](/medical-api/fhir/data-types/codeableconcept) | Kind of material that forms the specimen | | subject | No | Reference\<[Patient](/medical-api/fhir/resources/patient) / [Group](/medical-api/fhir/resources/group) / [Device](/medical-api/fhir/resources/device) / [Substance](/medical-api/fhir/resources/substance) / [Location](/medical-api/fhir/resources/location)> | Where the specimen came from. This may be from patient(s), from a location (e.g., the source of an environmental sample), or a sampling of a substance or a device | | receivedTime | No | dateTime | The time when specimen was received for processing | | parent | No | Reference\<[Specimen](/medical-api/fhir/resources/specimen)>\[] | Specimen from which this specimen originated | | request | No | Reference\<[ServiceRequest](/medical-api/fhir/resources/servicerequest)>\[] | Why the specimen was collected | | collection | No | SpecimenCollection | Collection details | | - id | No | string | Unique id for inter-element referencing | | - extension | No | [Extension](/medical-api/fhir/data-types/extension)\[] | Additional content defined by implementations | | - modifierExtension | No | [Extension](/medical-api/fhir/data-types/extension)\[] | Extensions that cannot be ignored even if unrecognized | | - collector | No | Reference\<[Practitioner](/medical-api/fhir/resources/practitioner) / [PractitionerRole](/medical-api/fhir/resources/practitionerrole)> | Who collected the specimen | | - collected\[x] | No | dateTime, [Period](/medical-api/fhir/data-types/period) | Collection time | | - duration | No | [Duration](/medical-api/fhir/data-types/duration) | How long it took to collect specimen | | - quantity | No | [Quantity](/medical-api/fhir/data-types/quantity) | The quantity of specimen collected | | - method | No | [CodeableConcept](/medical-api/fhir/data-types/codeableconcept) | Technique used to perform collection | | - bodySite | No | [CodeableConcept](/medical-api/fhir/data-types/codeableconcept) | Anatomical collection site | | - fastingStatus\[x] | No | [CodeableConcept](/medical-api/fhir/data-types/codeableconcept), [Duration](/medical-api/fhir/data-types/duration) | Whether or how long patient abstained from food and/or drink | | processing | No | SpecimenProcessing | Processing and processing step details | | - id | No | string | Unique id for inter-element referencing | | - extension | No | [Extension](/medical-api/fhir/data-types/extension)\[] | Additional content defined by implementations | | - modifierExtension | No | [Extension](/medical-api/fhir/data-types/extension)\[] | Extensions that cannot be ignored even if unrecognized | | - description | No | string | Textual description of procedure | | - procedure | No | [CodeableConcept](/medical-api/fhir/data-types/codeableconcept) | Indicates the treatment step applied to the specimen | | - additive | No | Reference\<[Substance](/medical-api/fhir/resources/substance)>\[] | Material used in the processing step | | - time\[x] | No | dateTime, [Period](/medical-api/fhir/data-types/period) | Date and time of specimen processing | | container | No | SpecimenContainer | Direct container of specimen (tube/slide, etc.) | | - id | No | string | Unique id for inter-element referencing | | - extension | No | [Extension](/medical-api/fhir/data-types/extension)\[] | Additional content defined by implementations | | - modifierExtension | No | [Extension](/medical-api/fhir/data-types/extension)\[] | Extensions that cannot be ignored even if unrecognized | | - identifier | No | [Identifier](/medical-api/fhir/data-types/identifier)\[] | Id for the container | | - description | No | string | Textual description of the container | | - type | No | [CodeableConcept](/medical-api/fhir/data-types/codeableconcept) | Kind of container directly associated with specimen | | - capacity | No | [Quantity](/medical-api/fhir/data-types/quantity) | Container volume or size | | - specimenQuantity | No | [Quantity](/medical-api/fhir/data-types/quantity) | Quantity of specimen within container | | - additive\[x] | No | [CodeableConcept](/medical-api/fhir/data-types/codeableconcept), Reference\<[Substance](/medical-api/fhir/resources/substance)> | Additive associated with container | | condition | No | [CodeableConcept](/medical-api/fhir/data-types/codeableconcept)\[] | State of the specimen | | note | No | [Annotation](/medical-api/fhir/data-types/annotation)\[] | Comments | ## Search Parameters | Name | Type | Description | Expression | | ------------ | --------- | ------------------------------------------------------------- | ----------------------------- | | accession | token | The accession number associated with the specimen | Specimen.accessionIdentifier | | bodysite | token | The code for the body site from where the specimen originated | Specimen.collection.bodySite | | collected | date | The date the specimen was collected | Specimen.collection.collected | | collector | reference | Who collected the specimen | Specimen.collection.collector | | container | token | The kind of specimen container | Specimen.container.type | | container-id | token | The unique identifier associated with the specimen container | Specimen.container.identifier | | identifier | token | The unique identifier associated with the specimen | Specimen.identifier | | parent | reference | The parent of the specimen | Specimen.parent | | patient | reference | The patient the specimen comes from | Specimen.subject | | status | token | available / unavailable / unsatisfactory / entered-in-error | Specimen.status | | subject | reference | The subject of the specimen | Specimen.subject | | type | token | The specimen type | Specimen.type | ## Inherited Properties | Name | Required | Type | Description | | ----------------- | -------- | ------------------------------------------------------ | ------------------------------------------------------ | | id | No | string | Logical id of this artifact | | meta | No | [Meta](/medical-api/fhir/data-types/meta) | Metadata about the resource | | implicitRules | No | uri | A set of rules under which this content was created | | language | No | code | Language of the resource content | | text | No | [Narrative](/medical-api/fhir/data-types/narrative) | Text summary of the resource, for human interpretation | | contained | No | Resource\[] | Contained, inline Resources | | extension | No | [Extension](/medical-api/fhir/data-types/extension)\[] | Additional content defined by implementations | | modifierExtension | No | [Extension](/medical-api/fhir/data-types/extension)\[] | Extensions that cannot be ignored | To view the FHIR specification for this resource, see [Specimen](https://www.hl7.org/fhir/StructureDefinition/Specimen).