| Name | Flags | Card. | Type | Description & Constraints |
|---|---|---|---|---|
  DeviceAssociation | D | DomainResource | A record of association or dissociation of a device with a patient Elements defined in Ancestors: id, meta, implicitRules, language, text, contained, extension, modifierExtension | |
  identifier | 0..* | Identifier | Instance identifier | |
 device | 1..1 | Reference(Device) | Reference to the devices associated with the patient or group | |
| category | 0..* | CodeableConcept | Describes the relationship between the device and subject | |
| status | 1..1 | CodeableConcept | implanted | explanted | attached | entered-in-error | unknown Binding: DeviceAssociation Status Codes (Required) | |
| statusReason | 0..* | CodeableConcept | The reasons given for the current association status Binding: DeviceAssociation Status Reason Codes (Required) | |
| subject | 0..1 | Reference(Patient | Group | Practitioner | RelatedPerson | Device) | The individual, group of individuals or device that the device is on or associated with | |
| bodyStructure | 0..1 | Reference(BodyStructure) | Current anatomical location of the device in/on subject | |
| period | 0..1 | Period | Begin and end dates and times for the device association | |
  operation | 0..* | BackboneElement | The details about the device when it is in use to describe its operation | |
 status | 1..1 | CodeableConcept | Device operational condition Binding: FHIR Device Association Operation Status (Example) | |
| operator | 0..* | Reference(Patient | Practitioner | RelatedPerson) | The individual performing the action enabled by the device | |
| period | 0..1 | Period | Begin and end dates and times for the device's operation | |
| Documentation for this format | ||||