This page is part of the FHIR Specification v4.1.0: R4B Ballot. About the R4B version of FHIR. 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: R4B R4 R3 R2

10.2 Resource Media - Content

Orders and Observations

Work Group

Maturity Level: 1

Trial Use

Security Category: Patient

Compartments: Device, Encounter, Patient, Practitioner

A photo, video, or audio recording acquired or used in healthcare. The actual content may be inline or provided by direct reference.

10.2.1 Scope and Usage

Trial-Use Note: The Orders and Observations workgroups wants to make the balloter aware than observations that require the attachment data types are represented by the Media resource instead of Observation. There have been several significant changes to the Media resource in order to align it with Observation and the workflow event pattern including:

The addition of the partOf and issued elements.

The required type was changed an optional category and the subtype element was renamed to modality.

Additional reference targets added to the subject,operator, and basedOn elements

The additions of several standard event extensions.

The Media resource contains photos, videos, and audio recordings. It is used with media acquired or used as part of the healthcare process. Here are some typical usages:

Photos and videos of diagnostic or care provision procedures for recording purposes
Images contained in diagnostic reports

10.2.2 Boundaries and Relationships

This resource captures a specific type of Observation - an Observation whose value is audio, video or image data. This resource is the preferred representation of such forms of information as it exposes the metadata relevant for interpreting the information. However, in some legacy environments, media information may occasionally appear in Observation instead. Systems should be aware of this possibility.

The Media resource is able to contain medical images in a DICOM format. These images may also be made accessible through an ImagingStudy resource, which provides a direct reference to the image to a WADO-RS server.

For such images, the WADO-RS framework is a preferred method for representing the images - the WADO-RS service may include rendering the image with annotations and display parameters from an associated DICOM presentation state, for instance.

On the other hand, the media resource allows for a robust transfer of an image across boundaries where the WADO-RS service is not available. For this reason, medical images can also be represented in a Media resource, but the Media.content.url should provide a reference to a source WADO-RS service for the image.

10.2.3 References

This resource is referenced by AdverseEvent, ClinicalImpression, DeviceUseStatement, DiagnosticReport, ImagingStudy, MedicationKnowledge and Observation.

This resource implements the Event pattern.

Structure

Name	Flags	Card.	Type	Description & Constraints
Media	TU		DomainResource	A photo, video, or audio recording acquired or used in healthcare. The actual content may be inline or provided by direct reference Elements defined in Ancestors: id, meta, implicitRules, language, text, contained, extension, modifierExtension
identifier	Σ	0..*	Identifier	Identifier(s) for the image
basedOn	Σ	0..*	Reference(ServiceRequest \| CarePlan)	Procedure that caused this media to be created
partOf	Σ	0..*	Reference(Any)	Part of referenced event
status	?!Σ	1..1	code	preparation \| in-progress \| not-done \| on-hold \| stopped \| completed \| entered-in-error \| unknown EventStatus (Required)
type	Σ	0..1	CodeableConcept	Classification of media as image, video, or audio Media Type (Extensible)
modality	Σ	0..1	CodeableConcept	The type of acquisition equipment/process Media Modality (Example)
view	Σ	0..1	CodeableConcept	Imaging view, e.g. Lateral or Antero-posterior Media Collection View/Projection (Example)
subject	Σ	0..1	Reference(Patient \| Practitioner \| PractitionerRole \| Group \| Device \| Specimen \| Location)	Who/What this Media is a record of
encounter	Σ	0..1	Reference(Encounter)	Encounter associated with media
created[x]	Σ	0..1		When Media was collected
createdDateTime			dateTime
createdPeriod			Period
issued	Σ	0..1	instant	Date/Time this version was made available
operator	Σ	0..1	Reference(Practitioner \| PractitionerRole \| Organization \| CareTeam \| Patient \| Device \| RelatedPerson)	The person who generated the image
reasonCode	Σ	0..*	CodeableConcept	Why was event performed? Procedure Reason Codes (Example)
bodySite	Σ	0..1	CodeableConcept	Observed body part SNOMED CT Body Structures (Example)
deviceName	Σ	0..1	string	Name of the device/manufacturer
device	Σ	0..1	Reference(Device \| DeviceMetric \| Device)	Observing Device
height	Σ	0..1	positiveInt	Height of the image in pixels (photo/video)
width	Σ	0..1	positiveInt	Width of the image in pixels (photo/video)
frames	Σ	0..1	positiveInt	Number of frames if > 1 (photo)
duration	Σ	0..1	decimal	Length in seconds (audio / video)
content	Σ	1..1	Attachment	Actual Media - reference or data
note		0..*	Annotation	Comments made about the media
Documentation for this format

UML Diagram (Legend)

XML Template

<Media xmlns="http://hl7.org/fhir"> 
 <!-- from Resource: id, meta, implicitRules, and language -->
 <!-- from DomainResource: text, contained, extension, and modifierExtension -->
 <identifier><!-- 0..* Identifier Identifier(s) for the image --></identifier>
 <basedOn><!-- 0..* Reference(CarePlan|ServiceRequest) Procedure that caused this media to be created --></basedOn>
 <partOf><!-- 0..* Reference(Any) Part of referenced event --></partOf>
 <status value="[code]"/><!-- 1..1 preparation | in-progress | not-done | on-hold | stopped | completed | entered-in-error | unknown -->
 <type><!-- 0..1 CodeableConcept Classification of media as image, video, or audio --></type>
 <modality><!-- 0..1 CodeableConcept The type of acquisition equipment/process --></modality>
 <view><!-- 0..1 CodeableConcept Imaging view, e.g. Lateral or Antero-posterior --></view>
 <subject><!-- 0..1 Reference(Device|Group|Location|Patient|Practitioner|
   PractitionerRole|Specimen) Who/What this Media is a record of --></subject>
 <encounter><!-- 0..1 Reference(Encounter) Encounter associated with media --></encounter>
 <created[x]><!-- 0..1 dateTime|Period When Media was collected --></created[x]>
 <issued value="[instant]"/><!-- 0..1 Date/Time this version was made available -->
 <operator><!-- 0..1 Reference(CareTeam|Device|Organization|Patient|Practitioner|
   PractitionerRole|RelatedPerson) The person who generated the image --></operator>
 <reasonCode><!-- 0..* CodeableConcept Why was event performed? --></reasonCode>
 <bodySite><!-- 0..1 CodeableConcept Observed body part --></bodySite>
 <deviceName value="[string]"/><!-- 0..1 Name of the device/manufacturer -->
 <device><!-- 0..1 Reference(Device|Device|DeviceMetric) Observing Device --></device>
 <height value="[positiveInt]"/><!-- 0..1 Height of the image in pixels (photo/video) -->
 <width value="[positiveInt]"/><!-- 0..1 Width of the image in pixels (photo/video) -->
 <frames value="[positiveInt]"/><!-- 0..1 Number of frames if > 1 (photo) -->
 <duration value="[decimal]"/><!-- 0..1 Length in seconds (audio / video) -->
 <content><!-- 1..1 Attachment Actual Media - reference or data --></content>
 <note><!-- 0..* Annotation Comments made about the media --></note>
</Media>

JSON Template

{
  "resourceType" : "Media",
  // from Resource: id, meta, implicitRules, and language
  // from DomainResource: text, contained, extension, and modifierExtension
  "identifier" : [{ Identifier }], // Identifier(s) for the image
  "basedOn" : [{ Reference(CarePlan|ServiceRequest) }], // Procedure that caused this media to be created
  "partOf" : [{ Reference(Any) }], // Part of referenced event
  "status" : "<code>", // R!  preparation | in-progress | not-done | on-hold | stopped | completed | entered-in-error | unknown
  "type" : { CodeableConcept }, // Classification of media as image, video, or audio
  "modality" : { CodeableConcept }, // The type of acquisition equipment/process
  "view" : { CodeableConcept }, // Imaging view, e.g. Lateral or Antero-posterior
  "subject" : { Reference(Device|Group|Location|Patient|Practitioner|
   PractitionerRole|Specimen) }, // Who/What this Media is a record of
  "encounter" : { Reference(Encounter) }, // Encounter associated with media
  // created[x]: When Media was collected. One of these 2:
  "createdDateTime" : "<dateTime>",
  "createdPeriod" : { Period },
  "issued" : "<instant>", // Date/Time this version was made available
  "operator" : { Reference(CareTeam|Device|Organization|Patient|Practitioner|
   PractitionerRole|RelatedPerson) }, // The person who generated the image
  "reasonCode" : [{ CodeableConcept }], // Why was event performed?
  "bodySite" : { CodeableConcept }, // Observed body part
  "deviceName" : "<string>", // Name of the device/manufacturer
  "device" : { Reference(Device|Device|DeviceMetric) }, // Observing Device
  "height" : "<positiveInt>", // Height of the image in pixels (photo/video)
  "width" : "<positiveInt>", // Width of the image in pixels (photo/video)
  "frames" : "<positiveInt>", // Number of frames if > 1 (photo)
  "duration" : <decimal>, // Length in seconds (audio / video)
  "content" : { Attachment }, // R!  Actual Media - reference or data
  "note" : [{ Annotation }] // Comments made about the media
}

Turtle Template

@prefix fhir: <http://hl7.org/fhir/> .


[ a fhir:Media;
  fhir:nodeRole fhir:treeRoot; # if this is the parser root

  # from Resource: .id, .meta, .implicitRules, and .language
  # from DomainResource: .text, .contained, .extension, and .modifierExtension
  fhir:Media.identifier [ Identifier ], ... ; # 0..* Identifier(s) for the image
  fhir:Media.basedOn [ Reference(CarePlan|ServiceRequest) ], ... ; # 0..* Procedure that caused this media to be created
  fhir:Media.partOf [ Reference(Any) ], ... ; # 0..* Part of referenced event
  fhir:Media.status [ code ]; # 1..1 preparation | in-progress | not-done | on-hold | stopped | completed | entered-in-error | unknown
  fhir:Media.type [ CodeableConcept ]; # 0..1 Classification of media as image, video, or audio
  fhir:Media.modality [ CodeableConcept ]; # 0..1 The type of acquisition equipment/process
  fhir:Media.view [ CodeableConcept ]; # 0..1 Imaging view, e.g. Lateral or Antero-posterior
  fhir:Media.subject [ Reference(Device|Group|Location|Patient|Practitioner|PractitionerRole|Specimen) ]; # 0..1 Who/What this Media is a record of
  fhir:Media.encounter [ Reference(Encounter) ]; # 0..1 Encounter associated with media
  # Media.created[x] : 0..1 When Media was collected. One of these 2
    fhir:Media.createdDateTime [ dateTime ]
    fhir:Media.createdPeriod [ Period ]
  fhir:Media.issued [ instant ]; # 0..1 Date/Time this version was made available
  fhir:Media.operator [ Reference(CareTeam|Device|Organization|Patient|Practitioner|PractitionerRole|RelatedPerson) ]; # 0..1 The person who generated the image
  fhir:Media.reasonCode [ CodeableConcept ], ... ; # 0..* Why was event performed?
  fhir:Media.bodySite [ CodeableConcept ]; # 0..1 Observed body part
  fhir:Media.deviceName [ string ]; # 0..1 Name of the device/manufacturer
  fhir:Media.device [ Reference(Device|Device|DeviceMetric) ]; # 0..1 Observing Device
  fhir:Media.height [ positiveInt ]; # 0..1 Height of the image in pixels (photo/video)
  fhir:Media.width [ positiveInt ]; # 0..1 Width of the image in pixels (photo/video)
  fhir:Media.frames [ positiveInt ]; # 0..1 Number of frames if > 1 (photo)
  fhir:Media.duration [ decimal ]; # 0..1 Length in seconds (audio / video)
  fhir:Media.content [ Attachment ]; # 1..1 Actual Media - reference or data
  fhir:Media.note [ Annotation ], ... ; # 0..* Comments made about the media
]

Changes since R3

Media

Media.status

Change value set from http://hl7.org/fhir/ValueSet/event-status|4.0.0 to http://hl7.org/fhir/ValueSet/event-status|4.1.0

See the Full Difference for further information

This analysis is available as XML or JSON.

See R3 <--> R4 Conversion Maps (status = 4 tests that all execute ok. All tests pass round-trip testing and 4 r3 resources are invalid (0 errors).)

Structure

Name	Flags	Card.	Type	Description & Constraints
Media	TU		DomainResource	A photo, video, or audio recording acquired or used in healthcare. The actual content may be inline or provided by direct reference Elements defined in Ancestors: id, meta, implicitRules, language, text, contained, extension, modifierExtension
identifier	Σ	0..*	Identifier	Identifier(s) for the image
basedOn	Σ	0..*	Reference(ServiceRequest \| CarePlan)	Procedure that caused this media to be created
partOf	Σ	0..*	Reference(Any)	Part of referenced event
status	?!Σ	1..1	code	preparation \| in-progress \| not-done \| on-hold \| stopped \| completed \| entered-in-error \| unknown EventStatus (Required)
type	Σ	0..1	CodeableConcept	Classification of media as image, video, or audio Media Type (Extensible)
modality	Σ	0..1	CodeableConcept	The type of acquisition equipment/process Media Modality (Example)
view	Σ	0..1	CodeableConcept	Imaging view, e.g. Lateral or Antero-posterior Media Collection View/Projection (Example)
subject	Σ	0..1	Reference(Patient \| Practitioner \| PractitionerRole \| Group \| Device \| Specimen \| Location)	Who/What this Media is a record of
encounter	Σ	0..1	Reference(Encounter)	Encounter associated with media
created[x]	Σ	0..1		When Media was collected
createdDateTime			dateTime
createdPeriod			Period
issued	Σ	0..1	instant	Date/Time this version was made available
operator	Σ	0..1	Reference(Practitioner \| PractitionerRole \| Organization \| CareTeam \| Patient \| Device \| RelatedPerson)	The person who generated the image
reasonCode	Σ	0..*	CodeableConcept	Why was event performed? Procedure Reason Codes (Example)
bodySite	Σ	0..1	CodeableConcept	Observed body part SNOMED CT Body Structures (Example)
deviceName	Σ	0..1	string	Name of the device/manufacturer
device	Σ	0..1	Reference(Device \| DeviceMetric \| Device)	Observing Device
height	Σ	0..1	positiveInt	Height of the image in pixels (photo/video)
width	Σ	0..1	positiveInt	Width of the image in pixels (photo/video)
frames	Σ	0..1	positiveInt	Number of frames if > 1 (photo)
duration	Σ	0..1	decimal	Length in seconds (audio / video)
content	Σ	1..1	Attachment	Actual Media - reference or data
note		0..*	Annotation	Comments made about the media
Documentation for this format

UML Diagram (Legend)

XML Template

<Media xmlns="http://hl7.org/fhir"> 
 <!-- from Resource: id, meta, implicitRules, and language -->
 <!-- from DomainResource: text, contained, extension, and modifierExtension -->
 <identifier><!-- 0..* Identifier Identifier(s) for the image --></identifier>
 <basedOn><!-- 0..* Reference(CarePlan|ServiceRequest) Procedure that caused this media to be created --></basedOn>
 <partOf><!-- 0..* Reference(Any) Part of referenced event --></partOf>
 <status value="[code]"/><!-- 1..1 preparation | in-progress | not-done | on-hold | stopped | completed | entered-in-error | unknown -->
 <type><!-- 0..1 CodeableConcept Classification of media as image, video, or audio --></type>
 <modality><!-- 0..1 CodeableConcept The type of acquisition equipment/process --></modality>
 <view><!-- 0..1 CodeableConcept Imaging view, e.g. Lateral or Antero-posterior --></view>
 <subject><!-- 0..1 Reference(Device|Group|Location|Patient|Practitioner|
   PractitionerRole|Specimen) Who/What this Media is a record of --></subject>
 <encounter><!-- 0..1 Reference(Encounter) Encounter associated with media --></encounter>
 <created[x]><!-- 0..1 dateTime|Period When Media was collected --></created[x]>
 <issued value="[instant]"/><!-- 0..1 Date/Time this version was made available -->
 <operator><!-- 0..1 Reference(CareTeam|Device|Organization|Patient|Practitioner|
   PractitionerRole|RelatedPerson) The person who generated the image --></operator>
 <reasonCode><!-- 0..* CodeableConcept Why was event performed? --></reasonCode>
 <bodySite><!-- 0..1 CodeableConcept Observed body part --></bodySite>
 <deviceName value="[string]"/><!-- 0..1 Name of the device/manufacturer -->
 <device><!-- 0..1 Reference(Device|Device|DeviceMetric) Observing Device --></device>
 <height value="[positiveInt]"/><!-- 0..1 Height of the image in pixels (photo/video) -->
 <width value="[positiveInt]"/><!-- 0..1 Width of the image in pixels (photo/video) -->
 <frames value="[positiveInt]"/><!-- 0..1 Number of frames if > 1 (photo) -->
 <duration value="[decimal]"/><!-- 0..1 Length in seconds (audio / video) -->
 <content><!-- 1..1 Attachment Actual Media - reference or data --></content>
 <note><!-- 0..* Annotation Comments made about the media --></note>
</Media>

JSON Template

{
  "resourceType" : "Media",
  // from Resource: id, meta, implicitRules, and language
  // from DomainResource: text, contained, extension, and modifierExtension
  "identifier" : [{ Identifier }], // Identifier(s) for the image
  "basedOn" : [{ Reference(CarePlan|ServiceRequest) }], // Procedure that caused this media to be created
  "partOf" : [{ Reference(Any) }], // Part of referenced event
  "status" : "<code>", // R!  preparation | in-progress | not-done | on-hold | stopped | completed | entered-in-error | unknown
  "type" : { CodeableConcept }, // Classification of media as image, video, or audio
  "modality" : { CodeableConcept }, // The type of acquisition equipment/process
  "view" : { CodeableConcept }, // Imaging view, e.g. Lateral or Antero-posterior
  "subject" : { Reference(Device|Group|Location|Patient|Practitioner|
   PractitionerRole|Specimen) }, // Who/What this Media is a record of
  "encounter" : { Reference(Encounter) }, // Encounter associated with media
  // created[x]: When Media was collected. One of these 2:
  "createdDateTime" : "<dateTime>",
  "createdPeriod" : { Period },
  "issued" : "<instant>", // Date/Time this version was made available
  "operator" : { Reference(CareTeam|Device|Organization|Patient|Practitioner|
   PractitionerRole|RelatedPerson) }, // The person who generated the image
  "reasonCode" : [{ CodeableConcept }], // Why was event performed?
  "bodySite" : { CodeableConcept }, // Observed body part
  "deviceName" : "<string>", // Name of the device/manufacturer
  "device" : { Reference(Device|Device|DeviceMetric) }, // Observing Device
  "height" : "<positiveInt>", // Height of the image in pixels (photo/video)
  "width" : "<positiveInt>", // Width of the image in pixels (photo/video)
  "frames" : "<positiveInt>", // Number of frames if > 1 (photo)
  "duration" : <decimal>, // Length in seconds (audio / video)
  "content" : { Attachment }, // R!  Actual Media - reference or data
  "note" : [{ Annotation }] // Comments made about the media
}

Turtle Template

@prefix fhir: <http://hl7.org/fhir/> .


[ a fhir:Media;
  fhir:nodeRole fhir:treeRoot; # if this is the parser root

  # from Resource: .id, .meta, .implicitRules, and .language
  # from DomainResource: .text, .contained, .extension, and .modifierExtension
  fhir:Media.identifier [ Identifier ], ... ; # 0..* Identifier(s) for the image
  fhir:Media.basedOn [ Reference(CarePlan|ServiceRequest) ], ... ; # 0..* Procedure that caused this media to be created
  fhir:Media.partOf [ Reference(Any) ], ... ; # 0..* Part of referenced event
  fhir:Media.status [ code ]; # 1..1 preparation | in-progress | not-done | on-hold | stopped | completed | entered-in-error | unknown
  fhir:Media.type [ CodeableConcept ]; # 0..1 Classification of media as image, video, or audio
  fhir:Media.modality [ CodeableConcept ]; # 0..1 The type of acquisition equipment/process
  fhir:Media.view [ CodeableConcept ]; # 0..1 Imaging view, e.g. Lateral or Antero-posterior
  fhir:Media.subject [ Reference(Device|Group|Location|Patient|Practitioner|PractitionerRole|Specimen) ]; # 0..1 Who/What this Media is a record of
  fhir:Media.encounter [ Reference(Encounter) ]; # 0..1 Encounter associated with media
  # Media.created[x] : 0..1 When Media was collected. One of these 2
    fhir:Media.createdDateTime [ dateTime ]
    fhir:Media.createdPeriod [ Period ]
  fhir:Media.issued [ instant ]; # 0..1 Date/Time this version was made available
  fhir:Media.operator [ Reference(CareTeam|Device|Organization|Patient|Practitioner|PractitionerRole|RelatedPerson) ]; # 0..1 The person who generated the image
  fhir:Media.reasonCode [ CodeableConcept ], ... ; # 0..* Why was event performed?
  fhir:Media.bodySite [ CodeableConcept ]; # 0..1 Observed body part
  fhir:Media.deviceName [ string ]; # 0..1 Name of the device/manufacturer
  fhir:Media.device [ Reference(Device|Device|DeviceMetric) ]; # 0..1 Observing Device
  fhir:Media.height [ positiveInt ]; # 0..1 Height of the image in pixels (photo/video)
  fhir:Media.width [ positiveInt ]; # 0..1 Width of the image in pixels (photo/video)
  fhir:Media.frames [ positiveInt ]; # 0..1 Number of frames if > 1 (photo)
  fhir:Media.duration [ decimal ]; # 0..1 Length in seconds (audio / video)
  fhir:Media.content [ Attachment ]; # 1..1 Actual Media - reference or data
  fhir:Media.note [ Annotation ], ... ; # 0..* Comments made about the media
]

Changes since Release 3

Media

Media.status

Change value set from http://hl7.org/fhir/ValueSet/event-status|4.0.0 to http://hl7.org/fhir/ValueSet/event-status|4.1.0

See the Full Difference for further information

This analysis is available as XML or JSON.

See R3 <--> R4 Conversion Maps (status = 4 tests that all execute ok. All tests pass round-trip testing and 4 r3 resources are invalid (0 errors).)

See the Profiles & Extensions and the alternate definitions: Master Definition XML + JSON, XML Schema/Schematron + JSON Schema, ShEx (for Turtle) + see the extensions & the dependency analysis

10.2.4.1 Terminology Bindings

Path	Definition	Type	Reference
Media.status	Codes identifying the lifecycle stage of an event.	Required	EventStatus
Media.type	Codes for high level media categories.	Extensible	MediaType
Media.modality	Detailed information about the type of the image - its kind, purpose, or the kind of equipment used to generate it.	Example	MediaModality
Media.view	Imaging view (projection) used when collecting an image.	Example	MediaCollectionView/Projection
Media.reasonCode	The reason for the media.	Example	ProcedureReasonCodes
Media.bodySite	Codes describing anatomical locations. May include laterality.	Example	SNOMEDCTBodyStructures

Path

Definition

Type

Reference

Media.status

Codes identifying the lifecycle stage of an event.

Required

EventStatus

Media.type

Codes for high level media categories.

Extensible

MediaType

Media.modality

Detailed information about the type of the image - its kind, purpose, or the kind of equipment used to generate it.

Example

MediaModality

Media.view

Imaging view (projection) used when collecting an image.

Example

MediaCollectionView/Projection

Media.reasonCode

The reason for the media.

Example

ProcedureReasonCodes

Media.bodySite

Codes describing anatomical locations. May include laterality.

Example

SNOMEDCTBodyStructures

10.2.4.2 Implementation Notes

The media resource contains several date/times:

Media.created[x] - The date(/time) of collection, or the period over which collection occurred
Media.duration - The duration of the media. The duration might differ from createdPeriod if recording was paused
Media.content.creation - This should be consistent with the Media.created[x] but might be different due to partial / edited recordings

This resource can embed the image information directly through the attachment.data element. However, good practice is generally to use the attachment.url element to point to a Binary resource. Servers will frequently be able to persist Binary resources in purpose-dedicated repositories more suitable to potentially large artifacts.

10.2.5 Search Parameters

Search parameters for this resource. The common parameters also apply. See Searching for more information about searching in REST, messaging, and services.

Name	Type	Description	Expression	In Common
based-on	reference	Procedure that caused this media to be created	Media.basedOn (CarePlan, ServiceRequest)
created	date	When Media was collected	Media.created
device	reference	Observing Device	Media.device (Device, DeviceMetric)
encounter	reference	Encounter associated with media	Media.encounter (Encounter)
identifier	token	Identifier(s) for the image	Media.identifier
modality	token	The type of acquisition equipment/process	Media.modality
operator	reference	The person who generated the image	Media.operator (Practitioner, Organization, CareTeam, Device, Patient, PractitionerRole, RelatedPerson)
patient	reference	Who/What this Media is a record of	Media.subject.where(resolve() is Patient) (Practitioner, Group, Specimen, Device, Patient, PractitionerRole, Location)
site	token	Observed body part	Media.bodySite
status	token	preparation \| in-progress \| not-done \| on-hold \| stopped \| completed \| entered-in-error \| unknown	Media.status
subject	reference	Who/What this Media is a record of	Media.subject (Practitioner, Group, Specimen, Device, Patient, PractitionerRole, Location)
type	token	Classification of media as image, video, or audio	Media.type
view	token	Imaging view, e.g. Lateral or Antero-posterior	Media.view