Da Vinci Prior Authorization Support (PAS) FHIR IG
2.2.0-ballot - STU 2.2 - Ballot

Da Vinci Prior Authorization Support (PAS) FHIR IG, published by HL7 International / Financial Management. This guide is not an authorized publication; it is the continuous build for version 2.2.0-ballot built by the FHIR (HL7® FHIR® Standard) CI Build. This version is based on the current content of https://github.com/HL7/davinci-pas/ and changes regularly. See the Directory of published versions

## Resource Profile: PAS Subscription

Official URL: http://hl7.org/fhir/us/davinci-pas/StructureDefinition/profile-subscription | Version: 2.2.0-ballot
Standards status: Trial-use Active as of 2026-01-30 | Maturity Level: 3 | Computable Name: PASSubscription
Other Identifiers: OID:2.16.840.1.113883.4.642.40.24.42.74

The profile for PAS subscription.

Usages:

- Examples for this Profile: Subscription/PASSubscriptionExample

You can also check for usages in the FHIR IG Statistics

### Formal Views of Profile Content

Description Differentials, Snapshots, and other representations.

- Key Elements Table
- Differential Table
- Snapshot Table
- Statistics/References
- All

Name | Flags | Card. | Type | Description & Constraints Filter: Bindings Constraints Obligations
--- | --- | --- | --- | ---
Subscription |  | 0..* | Subscription | Server push subscription criteria
implicitRules | ?!Σ | 0..1 | uri | A set of rules under which this content was created
modifierExtension | ?! | 0..* | Extension | Extensions that cannot be ignored
status | ?!Σ | 1..1 | code | requested | active | error | off Binding: SubscriptionStatus (required): The status of a subscription. Required Pattern: active
reason | Σ | 1..1 | string | Description of why this subscription was created
criteria | Σ | 1..1 | string | Rule for server push Required Pattern: http://hl7.org/fhir/us/davinci-pas/SubscriptionTopic/PASSubscriptionTopic
Slices for extension |  | 1..* | Extension | Extension Slice: Unordered, Open by value:url
extension:filterCriteria | S | 1..1 | string | Backported R5 FilterBy Criteria URL: http://hl7.org/fhir/uv/subscriptions-backport/StructureDefinition/backport-filter-criteria
channel | Σ | 1..1 | BackboneElement | The channel on which to report matches to the criteria
modifierExtension | ?!Σ | 0..* | Extension | Extensions that cannot be ignored even if unrecognized
type | Σ | 1..1 | code | rest-hook | websocket | email | sms | message Binding: SubscriptionChannelType (required): The type of method used to execute a subscription. Required Pattern: rest-hook
endpoint | S Σ | 1..1 | url | Where the channel points to
payload | Σ | 0..1 | code | MIME type to send, or omit for no payload Binding: Mime Types (required): The mime type of an attachment. Any valid mime type is allowed.
Slices for extension |  | 1..* | Extension | Extension Slice: Unordered, Open by value:url
extension:payloadContent | S | 1..1 | (Complex) | Backport R5 Subscription Payload Content Information URL: http://hl7.org/fhir/uv/subscriptions-backport/StructureDefinition/backport-payload-content
extension |  | 0..0 |  | Extension Slice: Unordered, Open by value:url
url |  | 1..1 | uri | "http://hl7.org/fhir/uv/subscriptions-backport/StructureDefinition/backport-payload-content"
Slices for value[x] |  | 0..1 | code | Notification content level Slice: Unordered, Closed by type:$this
value[x]:valueCode |  | 0..1 | code | Value of extension Binding: Backported R5 Subscription Content Value Set (required) Required Pattern: full-resource
Documentation for this format

#### Terminology Bindings

Path | Status | Usage | ValueSet | Version | Source
Subscription.status | Base | required | SubscriptionStatus | 📍4.0.1 | FHIR Std.
Subscription.channel.​type | Base | required | SubscriptionChannelType | 📍4.0.1 | FHIR Std.
Subscription.channel.​payload | Base | required | MimeType | 📍4.0.1 | FHIR Std.
Subscription.channel.​payload.extension:payloadContent.​value[x]:valueCode | Base | required | Backported R5 Subscription Content Value Set | 📦1.1.0 | Subscriptions R5 Backport v1.1

#### Constraints

Id | Grade | Path(s) | Description | Expression
dom-2 | error | Subscription | If the resource is contained in another resource, it SHALL NOT contain nested Resources | `contained.contained.empty()`
dom-3 | error | Subscription | If the resource is contained in another resource, it SHALL be referred to from elsewhere in the resource or SHALL refer to the containing resource | `contained.where((('#'+id in (%resource.descendants().reference | %resource.descendants().as(canonical) | %resource.descendants().as(uri) | %resource.descendants().as(url))) or descendants().where(reference = '#').exists() or descendants().where(as(canonical) = '#').exists() or descendants().where(as(canonical) = '#').exists()).not()).trace('unmatched', id).empty()`
dom-4 | error | Subscription | If a resource is contained in another resource, it SHALL NOT have a meta.versionId or a meta.lastUpdated | `contained.meta.versionId.empty() and contained.meta.lastUpdated.empty()`
dom-5 | error | Subscription | If a resource is contained in another resource, it SHALL NOT have a security label | `contained.meta.security.empty()`
dom-6 | best practice | Subscription | A resource should have narrative for robust management | `text.`div`.exists()`
ele-1 | error | **ALL** elements | All FHIR elements must have a @value or children | `hasValue() or (children().count() > id.count())`
ext-1 | error | **ALL** extensions | Must have either extensions or value[x], not both | `extension.exists() != value.exists()`

Name | Flags | Card. | Type | Description & Constraints Filter: Bindings Constraints Obligations
--- | --- | --- | --- | ---
Subscription |  | 0..* | Subscription | Server push subscription criteria
status |  | 1..1 | code | requested | active | error | off Required Pattern: active
criteria |  | 1..1 | string | Rule for server push Required Pattern: http://hl7.org/fhir/us/davinci-pas/SubscriptionTopic/PASSubscriptionTopic
Slices for extension |  | 1..* | Extension | Extension Slice: Unordered, Open by value:url
extension:filterCriteria | S | 1..1 | string | Backported R5 FilterBy Criteria URL: http://hl7.org/fhir/uv/subscriptions-backport/StructureDefinition/backport-filter-criteria
channel |  |  |  |
type |  | 1..1 | code | rest-hook | websocket | email | sms | message Required Pattern: rest-hook
endpoint | S | 1..1 | url | Where the channel points to
payload |  |  |  |
Slices for extension |  | 1..* | Extension | Extension Slice: Unordered, Open by value:url
extension:payloadContent | S | 1..1 | (Complex) | Backport R5 Subscription Payload Content Information URL: http://hl7.org/fhir/uv/subscriptions-backport/StructureDefinition/backport-payload-content
Slices for value[x] |  |  |  | Content/Rules for all slices
value[x]:valueCode |  | 0..1 | code | Value of extension Required Pattern: full-resource
Documentation for this format

Name | Flags | Card. | Type | Description & Constraints Filter: Bindings Constraints Obligations
--- | --- | --- | --- | ---
Subscription |  | 0..* | Subscription | Server push subscription criteria
id | Σ | 0..1 | id | Logical id of this artifact
meta | Σ | 0..1 | Meta | Metadata about the resource
implicitRules | ?!Σ | 0..1 | uri | A set of rules under which this content was created
language |  | 0..1 | code | Language of the resource content Binding: CommonLanguages (preferred): A human language.
Additional Bindings | Purpose
AllLanguages | Max Binding
text |  | 0..1 | Narrative | Text summary of the resource, for human interpretation This profile does not constrain the narrative in regard to content, language, or traceability to data elements
contained |  | 0..* | Resource | Contained, inline Resources
extension |  | 0..* | Extension | Additional content defined by implementations
modifierExtension | ?! | 0..* | Extension | Extensions that cannot be ignored
status | ?!Σ | 1..1 | code | requested | active | error | off Binding: SubscriptionStatus (required): The status of a subscription. Required Pattern: active
contact | Σ | 0..* | ContactPoint | Contact details for source (e.g. troubleshooting)
end | Σ | 0..1 | instant | When to automatically delete the subscription
reason | Σ | 1..1 | string | Description of why this subscription was created
criteria | Σ | 1..1 | string | Rule for server push Required Pattern: http://hl7.org/fhir/us/davinci-pas/SubscriptionTopic/PASSubscriptionTopic
id |  | 0..1 | string | xml:id (or equivalent in JSON)
Slices for extension |  | 1..* | Extension | Extension Slice: Unordered, Open by value:url
extension:filterCriteria | S | 1..1 | string | Backported R5 FilterBy Criteria URL: http://hl7.org/fhir/uv/subscriptions-backport/StructureDefinition/backport-filter-criteria
value |  | 0..1 | string | Primitive value for string Max Length:1048576
error | Σ | 0..1 | string | Latest error note
channel | Σ | 1..1 | BackboneElement | The channel on which to report matches to the criteria
id |  | 0..1 | string | Unique id for inter-element referencing
extension |  | 0..* | Extension | Additional content defined by implementations
modifierExtension | ?!Σ | 0..* | Extension | Extensions that cannot be ignored even if unrecognized
type | Σ | 1..1 | code | rest-hook | websocket | email | sms | message Binding: SubscriptionChannelType (required): The type of method used to execute a subscription. Required Pattern: rest-hook
endpoint | S Σ | 1..1 | url | Where the channel points to
payload | Σ | 0..1 | code | MIME type to send, or omit for no payload Binding: Mime Types (required): The mime type of an attachment. Any valid mime type is allowed.
id |  | 0..1 | string | xml:id (or equivalent in JSON)
Slices for extension |  | 1..* | Extension | Extension Slice: Unordered, Open by value:url
extension:payloadContent | S | 1..1 | (Complex) | Backport R5 Subscription Payload Content Information URL: http://hl7.org/fhir/uv/subscriptions-backport/StructureDefinition/backport-payload-content
id |  | 0..1 | id | Unique id for inter-element referencing
extension |  | 0..0 |  | Extension Slice: Unordered, Open by value:url
url |  | 1..1 | uri | "http://hl7.org/fhir/uv/subscriptions-backport/StructureDefinition/backport-payload-content"
Slices for value[x] |  | 0..1 | code | Notification content level Slice: Unordered, Closed by type:$this
value[x]:valueCode |  | 0..1 | code | Value of extension Binding: Backported R5 Subscription Content Value Set (required) Required Pattern: full-resource
value |  | 0..1 | string | Primitive value for code
header | Σ | 0..* | string | Usage depends on the channel type
Documentation for this format

#### Terminology Bindings

Path | Status | Usage | ValueSet | Version | Source
Subscription.language | Base | preferred | Common Languages | 📍4.0.1 | FHIR Std.
Subscription.status | Base | required | SubscriptionStatus | 📍4.0.1 | FHIR Std.
Subscription.channel.​type | Base | required | SubscriptionChannelType | 📍4.0.1 | FHIR Std.
Subscription.channel.​payload | Base | required | MimeType | 📍4.0.1 | FHIR Std.
Subscription.channel.​payload.extension:payloadContent.​value[x]:valueCode | Base | required | Backported R5 Subscription Content Value Set | 📦1.1.0 | Subscriptions R5 Backport v1.1

#### Constraints

Id | Grade | Path(s) | Description | Expression
dom-2 | error | Subscription | If the resource is contained in another resource, it SHALL NOT contain nested Resources | `contained.contained.empty()`
dom-3 | error | Subscription | If the resource is contained in another resource, it SHALL be referred to from elsewhere in the resource or SHALL refer to the containing resource | `contained.where((('#'+id in (%resource.descendants().reference | %resource.descendants().as(canonical) | %resource.descendants().as(uri) | %resource.descendants().as(url))) or descendants().where(reference = '#').exists() or descendants().where(as(canonical) = '#').exists() or descendants().where(as(canonical) = '#').exists()).not()).trace('unmatched', id).empty()`
dom-4 | error | Subscription | If a resource is contained in another resource, it SHALL NOT have a meta.versionId or a meta.lastUpdated | `contained.meta.versionId.empty() and contained.meta.lastUpdated.empty()`
dom-5 | error | Subscription | If a resource is contained in another resource, it SHALL NOT have a security label | `contained.meta.security.empty()`
dom-6 | best practice | Subscription | A resource should have narrative for robust management | `text.`div`.exists()`
ele-1 | error | **ALL** elements | All FHIR elements must have a @value or children | `hasValue() or (children().count() > id.count())`
ext-1 | error | **ALL** extensions | Must have either extensions or value[x], not both | `extension.exists() != value.exists()`

Summary

Mandatory: 3 elements(2 nested mandatory elements)
Must-Support: 3 elements

Extensions

This structure refers to these extensions:

- http://hl7.org/fhir/uv/subscriptions-backport/StructureDefinition/backport-filter-criteria
- http://hl7.org/fhir/uv/subscriptions-backport/StructureDefinition/backport-payload-content

Maturity: 3

Key Elements View

Name | Flags | Card. | Type | Description & Constraints Filter: Bindings Constraints Obligations
--- | --- | --- | --- | ---
Subscription |  | 0..* | Subscription | Server push subscription criteria
implicitRules | ?!Σ | 0..1 | uri | A set of rules under which this content was created
modifierExtension | ?! | 0..* | Extension | Extensions that cannot be ignored
status | ?!Σ | 1..1 | code | requested | active | error | off Binding: SubscriptionStatus (required): The status of a subscription. Required Pattern: active
reason | Σ | 1..1 | string | Description of why this subscription was created
criteria | Σ | 1..1 | string | Rule for server push Required Pattern: http://hl7.org/fhir/us/davinci-pas/SubscriptionTopic/PASSubscriptionTopic
Slices for extension |  | 1..* | Extension | Extension Slice: Unordered, Open by value:url
extension:filterCriteria | S | 1..1 | string | Backported R5 FilterBy Criteria URL: http://hl7.org/fhir/uv/subscriptions-backport/StructureDefinition/backport-filter-criteria
channel | Σ | 1..1 | BackboneElement | The channel on which to report matches to the criteria
modifierExtension | ?!Σ | 0..* | Extension | Extensions that cannot be ignored even if unrecognized
type | Σ | 1..1 | code | rest-hook | websocket | email | sms | message Binding: SubscriptionChannelType (required): The type of method used to execute a subscription. Required Pattern: rest-hook
endpoint | S Σ | 1..1 | url | Where the channel points to
payload | Σ | 0..1 | code | MIME type to send, or omit for no payload Binding: Mime Types (required): The mime type of an attachment. Any valid mime type is allowed.
Slices for extension |  | 1..* | Extension | Extension Slice: Unordered, Open by value:url
extension:payloadContent | S | 1..1 | (Complex) | Backport R5 Subscription Payload Content Information URL: http://hl7.org/fhir/uv/subscriptions-backport/StructureDefinition/backport-payload-content
extension |  | 0..0 |  | Extension Slice: Unordered, Open by value:url
url |  | 1..1 | uri | "http://hl7.org/fhir/uv/subscriptions-backport/StructureDefinition/backport-payload-content"
Slices for value[x] |  | 0..1 | code | Notification content level Slice: Unordered, Closed by type:$this
value[x]:valueCode |  | 0..1 | code | Value of extension Binding: Backported R5 Subscription Content Value Set (required) Required Pattern: full-resource
Documentation for this format

#### Terminology Bindings

Path | Status | Usage | ValueSet | Version | Source
Subscription.status | Base | required | SubscriptionStatus | 📍4.0.1 | FHIR Std.
Subscription.channel.​type | Base | required | SubscriptionChannelType | 📍4.0.1 | FHIR Std.
Subscription.channel.​payload | Base | required | MimeType | 📍4.0.1 | FHIR Std.
Subscription.channel.​payload.extension:payloadContent.​value[x]:valueCode | Base | required | Backported R5 Subscription Content Value Set | 📦1.1.0 | Subscriptions R5 Backport v1.1

#### Constraints

Id | Grade | Path(s) | Description | Expression
dom-2 | error | Subscription | If the resource is contained in another resource, it SHALL NOT contain nested Resources | `contained.contained.empty()`
dom-3 | error | Subscription | If the resource is contained in another resource, it SHALL be referred to from elsewhere in the resource or SHALL refer to the containing resource | `contained.where((('#'+id in (%resource.descendants().reference | %resource.descendants().as(canonical) | %resource.descendants().as(uri) | %resource.descendants().as(url))) or descendants().where(reference = '#').exists() or descendants().where(as(canonical) = '#').exists() or descendants().where(as(canonical) = '#').exists()).not()).trace('unmatched', id).empty()`
dom-4 | error | Subscription | If a resource is contained in another resource, it SHALL NOT have a meta.versionId or a meta.lastUpdated | `contained.meta.versionId.empty() and contained.meta.lastUpdated.empty()`
dom-5 | error | Subscription | If a resource is contained in another resource, it SHALL NOT have a security label | `contained.meta.security.empty()`
dom-6 | best practice | Subscription | A resource should have narrative for robust management | `text.`div`.exists()`
ele-1 | error | **ALL** elements | All FHIR elements must have a @value or children | `hasValue() or (children().count() > id.count())`
ext-1 | error | **ALL** extensions | Must have either extensions or value[x], not both | `extension.exists() != value.exists()`

Differential View

Name | Flags | Card. | Type | Description & Constraints Filter: Bindings Constraints Obligations
--- | --- | --- | --- | ---
Subscription |  | 0..* | Subscription | Server push subscription criteria
status |  | 1..1 | code | requested | active | error | off Required Pattern: active
criteria |  | 1..1 | string | Rule for server push Required Pattern: http://hl7.org/fhir/us/davinci-pas/SubscriptionTopic/PASSubscriptionTopic
Slices for extension |  | 1..* | Extension | Extension Slice: Unordered, Open by value:url
extension:filterCriteria | S | 1..1 | string | Backported R5 FilterBy Criteria URL: http://hl7.org/fhir/uv/subscriptions-backport/StructureDefinition/backport-filter-criteria
channel |  |  |  |
type |  | 1..1 | code | rest-hook | websocket | email | sms | message Required Pattern: rest-hook
endpoint | S | 1..1 | url | Where the channel points to
payload |  |  |  |
Slices for extension |  | 1..* | Extension | Extension Slice: Unordered, Open by value:url
extension:payloadContent | S | 1..1 | (Complex) | Backport R5 Subscription Payload Content Information URL: http://hl7.org/fhir/uv/subscriptions-backport/StructureDefinition/backport-payload-content
Slices for value[x] |  |  |  | Content/Rules for all slices
value[x]:valueCode |  | 0..1 | code | Value of extension Required Pattern: full-resource
Documentation for this format

Snapshot ViewView

Name | Flags | Card. | Type | Description & Constraints Filter: Bindings Constraints Obligations
--- | --- | --- | --- | ---
Subscription |  | 0..* | Subscription | Server push subscription criteria
id | Σ | 0..1 | id | Logical id of this artifact
meta | Σ | 0..1 | Meta | Metadata about the resource
implicitRules | ?!Σ | 0..1 | uri | A set of rules under which this content was created
language |  | 0..1 | code | Language of the resource content Binding: CommonLanguages (preferred): A human language.
Additional Bindings | Purpose
AllLanguages | Max Binding
text |  | 0..1 | Narrative | Text summary of the resource, for human interpretation This profile does not constrain the narrative in regard to content, language, or traceability to data elements
contained |  | 0..* | Resource | Contained, inline Resources
extension |  | 0..* | Extension | Additional content defined by implementations
modifierExtension | ?! | 0..* | Extension | Extensions that cannot be ignored
status | ?!Σ | 1..1 | code | requested | active | error | off Binding: SubscriptionStatus (required): The status of a subscription. Required Pattern: active
contact | Σ | 0..* | ContactPoint | Contact details for source (e.g. troubleshooting)
end | Σ | 0..1 | instant | When to automatically delete the subscription
reason | Σ | 1..1 | string | Description of why this subscription was created
criteria | Σ | 1..1 | string | Rule for server push Required Pattern: http://hl7.org/fhir/us/davinci-pas/SubscriptionTopic/PASSubscriptionTopic
id |  | 0..1 | string | xml:id (or equivalent in JSON)
Slices for extension |  | 1..* | Extension | Extension Slice: Unordered, Open by value:url
extension:filterCriteria | S | 1..1 | string | Backported R5 FilterBy Criteria URL: http://hl7.org/fhir/uv/subscriptions-backport/StructureDefinition/backport-filter-criteria
value |  | 0..1 | string | Primitive value for string Max Length:1048576
error | Σ | 0..1 | string | Latest error note
channel | Σ | 1..1 | BackboneElement | The channel on which to report matches to the criteria
id |  | 0..1 | string | Unique id for inter-element referencing
extension |  | 0..* | Extension | Additional content defined by implementations
modifierExtension | ?!Σ | 0..* | Extension | Extensions that cannot be ignored even if unrecognized
type | Σ | 1..1 | code | rest-hook | websocket | email | sms | message Binding: SubscriptionChannelType (required): The type of method used to execute a subscription. Required Pattern: rest-hook
endpoint | S Σ | 1..1 | url | Where the channel points to
payload | Σ | 0..1 | code | MIME type to send, or omit for no payload Binding: Mime Types (required): The mime type of an attachment. Any valid mime type is allowed.
id |  | 0..1 | string | xml:id (or equivalent in JSON)
Slices for extension |  | 1..* | Extension | Extension Slice: Unordered, Open by value:url
extension:payloadContent | S | 1..1 | (Complex) | Backport R5 Subscription Payload Content Information URL: http://hl7.org/fhir/uv/subscriptions-backport/StructureDefinition/backport-payload-content
id |  | 0..1 | id | Unique id for inter-element referencing
extension |  | 0..0 |  | Extension Slice: Unordered, Open by value:url
url |  | 1..1 | uri | "http://hl7.org/fhir/uv/subscriptions-backport/StructureDefinition/backport-payload-content"
Slices for value[x] |  | 0..1 | code | Notification content level Slice: Unordered, Closed by type:$this
value[x]:valueCode |  | 0..1 | code | Value of extension Binding: Backported R5 Subscription Content Value Set (required) Required Pattern: full-resource
value |  | 0..1 | string | Primitive value for code
header | Σ | 0..* | string | Usage depends on the channel type
Documentation for this format

#### Terminology Bindings

Path | Status | Usage | ValueSet | Version | Source
Subscription.language | Base | preferred | Common Languages | 📍4.0.1 | FHIR Std.
Subscription.status | Base | required | SubscriptionStatus | 📍4.0.1 | FHIR Std.
Subscription.channel.​type | Base | required | SubscriptionChannelType | 📍4.0.1 | FHIR Std.
Subscription.channel.​payload | Base | required | MimeType | 📍4.0.1 | FHIR Std.
Subscription.channel.​payload.extension:payloadContent.​value[x]:valueCode | Base | required | Backported R5 Subscription Content Value Set | 📦1.1.0 | Subscriptions R5 Backport v1.1

#### Constraints

Id | Grade | Path(s) | Description | Expression
dom-2 | error | Subscription | If the resource is contained in another resource, it SHALL NOT contain nested Resources | `contained.contained.empty()`
dom-3 | error | Subscription | If the resource is contained in another resource, it SHALL be referred to from elsewhere in the resource or SHALL refer to the containing resource | `contained.where((('#'+id in (%resource.descendants().reference | %resource.descendants().as(canonical) | %resource.descendants().as(uri) | %resource.descendants().as(url))) or descendants().where(reference = '#').exists() or descendants().where(as(canonical) = '#').exists() or descendants().where(as(canonical) = '#').exists()).not()).trace('unmatched', id).empty()`
dom-4 | error | Subscription | If a resource is contained in another resource, it SHALL NOT have a meta.versionId or a meta.lastUpdated | `contained.meta.versionId.empty() and contained.meta.lastUpdated.empty()`
dom-5 | error | Subscription | If a resource is contained in another resource, it SHALL NOT have a security label | `contained.meta.security.empty()`
dom-6 | best practice | Subscription | A resource should have narrative for robust management | `text.`div`.exists()`
ele-1 | error | **ALL** elements | All FHIR elements must have a @value or children | `hasValue() or (children().count() > id.count())`
ext-1 | error | **ALL** extensions | Must have either extensions or value[x], not both | `extension.exists() != value.exists()`

Summary

Mandatory: 3 elements(2 nested mandatory elements)
Must-Support: 3 elements

Extensions

This structure refers to these extensions:

- http://hl7.org/fhir/uv/subscriptions-backport/StructureDefinition/backport-filter-criteria
- http://hl7.org/fhir/uv/subscriptions-backport/StructureDefinition/backport-payload-content

Maturity: 3

Other representations of profile: CSV, Excel, Schematron