---
type: "search-params"
title: "Device Search Parameters"
resource: "Device"
---
# Device Search Parameters
## code
**Description:** The definition / type of the device (code)
**Type:** token
**Expression:** Device.type | Device.definition.resolve().classification.type
**Path:** Device.definition.concept
**Standards Status:** normative
**URL:** http://hl7.org/fhir/build/SearchParameter/Device-definition
## definition
**Description:** The definition / type of the device
**Type:** reference
**Expression:** Device.definition
**Path:** Device.definition
**Standards Status:** normative
**URL:** http://hl7.org/fhir/build/SearchParameter/Device-definition
## device-name
**Description:** A server defined search that may match any of the string fields in Device.name or Device.type.
**Type:** string
**Expression:** Device.name.value | Device.type.coding.display | Device.type.text
**Path:** Device.name
**Standards Status:** normative
**URL:** http://hl7.org/fhir/build/SearchParameter/Device-device-name
## expiration-date
**Description:** The expiration date of the device
**Type:** date
**Expression:** Device.expirationDate
**Path:** Device.expirationDate
**Standards Status:** normative
**URL:** http://hl7.org/fhir/build/SearchParameter/Device-expiration-date
## identifier
**Description:** Instance id from manufacturer, owner, and others
**Type:** token
**Expression:** Device.identifier
**Path:** Device.identifier
**Standards Status:** normative
**URL:** http://hl7.org/fhir/build/SearchParameter/Device-identifier
## location
**Description:** A location, where the resource is found
**Type:** reference
**Expression:** Device.location
**Path:** Device.location
**Standards Status:** normative
**URL:** http://hl7.org/fhir/build/SearchParameter/Device-location
## lot-number
**Description:** The lot number of the device
**Type:** string
**Expression:** Device.lotNumber
**Path:** Device.lotNumber
**Standards Status:** normative
**URL:** http://hl7.org/fhir/build/SearchParameter/Device-lot-number
## manufacture-date
**Description:** The manufacture date of the device
**Type:** date
**Expression:** Device.manufactureDate
**Path:** Device.manufactureDate
**Standards Status:** normative
**URL:** http://hl7.org/fhir/build/SearchParameter/Device-manufacture-date
## manufacturer
**Description:** The manufacturer of the device
**Type:** string
**Expression:** Device.manufacturer
**Path:** Device.manufacturer
**Standards Status:** normative
**URL:** http://hl7.org/fhir/build/SearchParameter/Device-manufacturer
## model
**Description:** The model of the device
**Type:** string
**Expression:** Device.modelNumber
**Path:** Device.modelNumber
**Standards Status:** normative
**URL:** http://hl7.org/fhir/build/SearchParameter/Device-model
## parent
**Description:** The parent device
**Type:** reference
**Expression:** Device.parent
**Path:** Device.parent
**Standards Status:** normative
**URL:** http://hl7.org/fhir/build/SearchParameter/Device-parent
## serial-number
**Description:** The serial number of the device
**Type:** string
**Expression:** Device.serialNumber | Device.identifier.where(type='SNO')
**Path:** Device.serialNumber
**Standards Status:** normative
**URL:** http://hl7.org/fhir/build/SearchParameter/Device-serial-number
## specification
**Description:** The standards, specifications, or formal guidances.
**Type:** token
**Expression:** Device.conformsTo.specification
**Path:** Device.conformsTo.specification
**Standards Status:** normative
**URL:** http://hl7.org/fhir/build/SearchParameter/Device-specification
## code-value-concept
**Description:** Code and value parameter pair
**Type:** composite
**Expression:** Device
**Standards Status:** normative
**URL:** http://hl7.org/fhir/build/SearchParameter/Device-specification-version
## status
**Description:** active | inactive | entered-in-error | unknown
**Type:** token
**Expression:** Device.status
**Path:** Device.status
**Standards Status:** normative
**URL:** http://hl7.org/fhir/build/SearchParameter/Device-status
## type
**Description:** The type of the device
**Type:** token
**Expression:** Device.type
**Path:** Device.type
**Standards Status:** normative
**URL:** http://hl7.org/fhir/build/SearchParameter/Device-type
## udi-carrier-hrf
**Description:** UDI Barcode (RFID or other technology) string in *HRF* format.
**Type:** string
**Expression:** Device.udiCarrier.carrierHRF
**Path:** Device.udiCarrier.carrierHRF
**Standards Status:** normative
**URL:** http://hl7.org/fhir/build/SearchParameter/Device-udi-carrier-hrf
## udi-di
**Description:** The udi Device Identifier (DI)
**Type:** string
**Expression:** Device.udiCarrier.deviceIdentifier
**Path:** Device.udiCarrier
**Standards Status:** normative
**URL:** http://hl7.org/fhir/build/SearchParameter/Device-udi-di
## version
**Description:** The specific version of the device
**Type:** string
**Expression:** Device.deviceVersion.value
**Path:** Device.deviceVersion.value
**Standards Status:** normative
**URL:** http://hl7.org/fhir/build/SearchParameter/Device-version
## biological-source-event
**Description:** The biological source for the device
**Type:** token
**Expression:** Device.biologicalSourceEvent
**Path:** Device.biologicalSourceEvent
**Standards Status:** normative
**URL:** http://hl7.org/fhir/build/SearchParameter/Device-biological-source-event
## specification-version
**Description:** A composite of both specification and version
**Type:** composite
**Expression:** Device.conformsTo
**Standards Status:** normative
**URL:** http://hl7.org/fhir/build/SearchParameter/Device-specification-version
## version-type
**Description:** Value and type of version
**Type:** composite
**Expression:** Device.deviceVersion
**Standards Status:** normative
**URL:** http://hl7.org/fhir/build/SearchParameter/Device-type-version