This page is part of the FHIR Specification (v1.6.0: STU 3 Ballot 4). The current version which supercedes this version is 5.0.0. For a full list of available versions, see the Directory of published versions
. Page versions: R5 R4B R4 R3

Detailed Descriptions for the elements in the definition resource.
| Definition | |
| Definition | A pattern to be followed by resources that represent a specific proposal, plan and/or order for some sort of action or service. |
| Control | 1..1 |
| Definition.identifier | |
| Definition | Identifiers assigned to this request by the requester, performer and other systems. |
| Note | This is a business identifer, not a resource identifier (see discussion) |
| Control | 0..1 |
| Type | Identifier |
| Requirements | Allows identification of the definition as it is known by various participating systems and in a way that remains consistent across servers. |
| Summary | true |
| Definition.definition | |
| Definition | A protocol, guideline, orderset or other definition that is adhered to in whole or in part by this definition. |
| Control | 0..* |
| Type | Reference(Definition) |
| Requirements | Protocols and order sets may be refinements of more generic protocols and order sets. |
| Summary | true |
| Comments | [The allowed reference resources may be adjusted as appropriate for the request resource]. |
| Definition.parent | |
| Definition | A larger definition of which this particular definition is a component or step. |
| Control | 0..* |
| Type | Reference(Definition) |
| Requirements | E.g. Drug administration as part of a procedure, procedure as part of observation, etc. |
| Alternate Names | container |
| Summary | true |
| Comments | [The allowed reference resources may be adjusted as appropriate for the event resource]. |
| Definition.replaces | |
| Definition | Completed or terminated request(s) whose function is taken by this new request. |
| Control | 0..* |
| Type | Reference(Definition) |
| Requirements | As new versions of a protocol or guideline are defined, allows identification of what versions are replaced by a new instance. |
| Alternate Names | supersedes; prior; renewed order |
| Summary | true |
| Definition.status | |
| Definition | The current state of the definition. |
| Control | 1..1 |
| Binding | DefinitionStatus: Codes identifying the stage lifecycle stage of a definition (Required) |
| Type | code |
| Is Modifier | true |
| Summary | true |
| To Do | Should this be a common code system for all definitions? |
| Definition.subject[x] | |
| Definition | A code or group definition that describes the intended subject of instantiations of this definition. |
| Control | 0..1 |
| Binding | DefinitionSubject: Codes identifying the type of subject intended to be the recpient or focus of the defined action. These should ideally be consistent across definition resources. |
| Type | CodeableConcept|Reference(Group) |
| [x] Note | See Choice of Data Types for further information about how to use [x] |
| Requirements | Many protocols, order sets and guidelines are inted for use only with specific types of patients or subjects. |
| Alternate Names | patient |
| Summary | true |
| Definition.date | |
| Definition | For draft definitions, indicates the date of initial creation. For active definitions, represents the date of activation. For withdrawn definitions, indicates the date of withdrawal. |
| Control | 0..1 |
| Type | dateTime |
| Alternate Names | created |
| Summary | true |
| Definition.author | |
| Definition | The individual or group with primary responsibility for the content of this definition. |
| Control | 0..1 |
| Type | Reference(Practitioner | Organization) |
| Alternate Names | author |
| Summary | true |
| Definition.performerType | |
| Definition | The type of individual that is expected to act upon instances of this definition. |
| Control | 0..1 |
| Binding | PerformerType: Identifies types of practitioners, devices or others that are intended to perform a defined action. While the detailed constraints of relevant providers will vary by resource, some degree of consistency around recommended codes across request and definition resources would be desirable |
| Type | CodeableConcept |
| Summary | true |
| To Do | Need to define who.performer. |