Da Vinci Payer Data Exchange
2.1.1 - STU 2.1

Da Vinci Payer Data Exchange, published by HL7 International / Financial Management. This guide is not an authorized publication; it is the continuous build for version 2.1.1 built by the FHIR (HL7® FHIR® Standard) CI Build. This version is based on the current content of https://github.com/HL7/davinci-epdx/ and changes regularly. See the Directory of published versions

## Resource Profile: PDex Member Match Group ( Experimental )

Official URL: http://hl7.org/fhir/us/davinci-pdex/StructureDefinition/pdex-member-match-group | Version: 2.1.1
Standards status: Informative | Computable Name: PDexMemberMatchGroup
Copyright/Legal: Used by permission of HL7 International, all rights reserved Creative Commons License

A Group List created by the Payer to enable Bulk Payer-to-Payer API access by Other Payers to retrieve member information. Based on the Group resource. An Extension is added to capture the submitted parameters for the access request.

Usages:

- Use this Profile: PDex $multi-member-match response
- Examples for this Profile: Matched Members
- CapabilityStatements using this Profile: PDex Payer Access Server CapabilityStatement, PDex Server CapabilityStatement with US core 6.1 support and PDEX Server CapabilityStatement

You can also check for usages in the FHIR IG Statistics

### Formal Views of Profile Content

Description of Profiles, Differentials, Snapshots and how the different presentations work.

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

Name | Flags | Card. | Type | Description & Constraints Filter: Bindings Constraints Obligations
--- | --- | --- | --- | ---
Group | C | 0..* | Group | Group of multiple entities Constraints: grp-1
implicitRules | ?!Σ | 0..1 | uri | A set of rules under which this content was created
modifierExtension | ?! | 0..* | Extension | Extensions that cannot be ignored
type | Σ | 1..1 | code | person | animal | practitioner | device | medication | substance Binding: GroupType (required): Types of resources that are part of group.
actual | Σ C | 1..1 | boolean | Descriptive or actual
code | S Σ | 1..1 | CodeableConcept | Kind of Group members Binding: PDex Multi-Member Match Result Value Set (required)
characteristic |  | 0..* | BackboneElement | Include / Exclude group members by Trait
modifierExtension | ?!Σ | 0..* | Extension | Extensions that cannot be ignored even if unrecognized
code | S | 1..1 | CodeableConcept | Kind of characteristic Binding Description: (example): List of characteristics used to describe group members; e.g. gender, age, owner, location, etc.
coding | Σ | 0..* | Coding | Code defined by a terminology system Binding: PDex Multi-Member Match Result Value Set (required)
code | Σ | 0..1 | code | Symbol in syntax defined by the system Required Pattern: match
Slices for value[x] |  | 1..1 |  | Value held by characteristic Slice: Unordered, Open by type:$this Binding Description: (example): Value of descriptive member characteristic; e.g. red, male, pneumonia, Caucasian, etc.
valueCodeableConcept |  |  | CodeableConcept |
valueBoolean |  |  | boolean |
valueQuantity |  |  | Quantity |
valueRange |  |  | Range |
valueReference |  |  | Reference(Any) |
value[x]:valueReference | S | 0..1 | Reference() | Value held by characteristic
exclude |  | 1..1 | boolean | Group includes or excludes Required Pattern: false
period | S | 0..1 | Period | Period over which characteristic is tested
member | C | 0..* | BackboneElement | Who or what is in group
modifierExtension | ?!Σ | 0..* | Extension | Extensions that cannot be ignored even if unrecognized
entity |  | 1..1 | Reference(Patient | Practitioner | PractitionerRole | Device | Medication | Substance | Group) | Reference to the group member
Slices for extension |  |  |  | Content/Rules for all slices
extension:matchedMember | S | 0..1 | Reference(Patient) | Member-Match Input Patient Parameter URL: http://hl7.org/fhir/us/davinci-pdex/StructureDefinition/base-ext-match-parameters
Documentation for this format

#### Terminology Bindings

Path | Status | Usage | ValueSet | Version | Source
Group.type | Base | required | GroupType | 📍4.0.1 | FHIR Std.
Group.code | Base | required | PDex Multi-Member Match Result Value Set | 📦2.1.1 | This IG
Group.characteristic.​code | Base | example |  | Not State | Unknown
Group.characteristic.​code.coding | Base | required | PDex Multi-Member Match Result Value Set | 📦2.1.1 | This IG
Group.characteristic.​value[x] | Base | example |  | Not State | Unknown

#### Constraints

Id | Grade | Path(s) | Description | Expression
dom-2 | error | Group | If the resource is contained in another resource, it SHALL NOT contain nested Resources | `contained.contained.empty()`
dom-3 | error | Group | 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 | Group | 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 | Group | If a resource is contained in another resource, it SHALL NOT have a security label | `contained.meta.security.empty()`
dom-6 | best practice | Group | 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()`
grp-1 | error | Group | Can only have members if group is "actual" | `member.empty() or (actual = true)`

This structure is derived from Group

Name | Flags | Card. | Type | Description & Constraints Filter: Bindings Constraints Obligations
--- | --- | --- | --- | ---
Group |  | 0..* | Group | Group of multiple entities
code | S | 1..1 | CodeableConcept | Kind of Group members Binding: PDex Multi-Member Match Result Value Set (required)
characteristic |  |  |  |
code | S | 1..1 | CodeableConcept | Kind of characteristic
coding |  | 0..* | Coding | Code defined by a terminology system Binding: PDex Multi-Member Match Result Value Set (required)
code |  | 0..1 | code | Symbol in syntax defined by the system Required Pattern: match
Slices for value[x] |  | 1..1 | CodeableConcept, boolean, Quantity, Range, Reference() | Value held by characteristic Slice: Unordered, Open by type:$this
value[x]:valueReference | S | 0..1 | Reference() | Value held by characteristic
exclude |  | 1..1 | boolean | Group includes or excludes Required Pattern: false
period | S | 0..1 | Period | Period over which characteristic is tested
member |  |  |  |
entity |  |  |  |
Slices for extension |  |  |  | Content/Rules for all slices
extension:matchedMember | S | 0..1 | Reference(Patient) | Member-Match Input Patient Parameter URL: http://hl7.org/fhir/us/davinci-pdex/StructureDefinition/base-ext-match-parameters
Documentation for this format

#### Terminology Bindings (Differential)

Path | Status | Usage | ValueSet | Version | Source
Group.code | Base | required | PDex Multi-Member Match Result Value Set | 📦2.1.1 | This IG
Group.characteristic.​code.coding | Base | required | PDex Multi-Member Match Result Value Set | 📦2.1.1 | This IG

Name | Flags | Card. | Type | Description & Constraints Filter: Bindings Constraints Obligations
--- | --- | --- | --- | ---
Group | C | 0..* | Group | Group of multiple entities Constraints: grp-1
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
identifier | Σ | 0..* | Identifier | Unique id
active | Σ | 0..1 | boolean | Whether this group's record is in active use
type | Σ | 1..1 | code | person | animal | practitioner | device | medication | substance Binding: GroupType (required): Types of resources that are part of group.
actual | Σ C | 1..1 | boolean | Descriptive or actual
code | S Σ | 1..1 | CodeableConcept | Kind of Group members Binding: PDex Multi-Member Match Result Value Set (required)
name | Σ | 0..1 | string | Label for Group
quantity | Σ | 0..1 | unsignedInt | Number of members
managingEntity | Σ | 0..1 | Reference(Organization | RelatedPerson | Practitioner | PractitionerRole) | Entity that is the custodian of the Group's definition
characteristic |  | 0..* | BackboneElement | Include / Exclude group members by Trait
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
code | S | 1..1 | CodeableConcept | Kind of characteristic Binding Description: (example): List of characteristics used to describe group members; e.g. gender, age, owner, location, etc.
id |  | 0..1 | string | Unique id for inter-element referencing
extension |  | 0..* | Extension | Additional content defined by implementations Slice: Unordered, Open by value:url
coding | Σ | 0..* | Coding | Code defined by a terminology system Binding: PDex Multi-Member Match Result Value Set (required)
id |  | 0..1 | string | Unique id for inter-element referencing
extension |  | 0..* | Extension | Additional content defined by implementations Slice: Unordered, Open by value:url
system | Σ | 0..1 | uri | Identity of the terminology system
version | Σ | 0..1 | string | Version of the system - if relevant
code | Σ | 0..1 | code | Symbol in syntax defined by the system Required Pattern: match
display | Σ | 0..1 | string | Representation defined by the system
userSelected | Σ | 0..1 | boolean | If this coding was chosen directly by the user
text | Σ | 0..1 | string | Plain text representation of the concept
Slices for value[x] |  | 1..1 |  | Value held by characteristic Slice: Unordered, Open by type:$this Binding Description: (example): Value of descriptive member characteristic; e.g. red, male, pneumonia, Caucasian, etc.
valueCodeableConcept |  |  | CodeableConcept |
valueBoolean |  |  | boolean |
valueQuantity |  |  | Quantity |
valueRange |  |  | Range |
valueReference |  |  | Reference(Any) |
value[x]:valueReference | S | 0..1 | Reference() | Value held by characteristic
exclude |  | 1..1 | boolean | Group includes or excludes Required Pattern: false
period | S | 0..1 | Period | Period over which characteristic is tested
member | C | 0..* | BackboneElement | Who or what is in group
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
entity |  | 1..1 | Reference(Patient | Practitioner | PractitionerRole | Device | Medication | Substance | Group) | Reference to the group member
id |  | 0..1 | string | Unique id for inter-element referencing
Slices for extension |  | 0..* | Extension | Additional content defined by implementations Slice: Unordered, Open by value:url
extension:matchedMember | S | 0..1 | Reference(Patient) | Member-Match Input Patient Parameter URL: http://hl7.org/fhir/us/davinci-pdex/StructureDefinition/base-ext-match-parameters
reference | Σ C | 0..1 | string | Literal reference, Relative, internal or absolute URL
type | Σ | 0..1 | uri | Type the reference refers to (e.g. "Patient") Binding: ResourceType (extensible): Aa resource (or, for logical models, the URI of the logical model).
identifier | Σ | 0..1 | Identifier | Logical reference, when literal reference is not known
display | Σ | 0..1 | string | Text alternative for the resource
period |  | 0..1 | Period | Period member belonged to the group
inactive |  | 0..1 | boolean | If member is no longer in group
Documentation for this format

#### Terminology Bindings

Path | Status | Usage | ValueSet | Version | Source
Group.language | Base | preferred | Common Languages | 📍4.0.1 | FHIR Std.
Group.type | Base | required | GroupType | 📍4.0.1 | FHIR Std.
Group.code | Base | required | PDex Multi-Member Match Result Value Set | 📦2.1.1 | This IG
Group.characteristic.​code | Base | example |  | Not State | Unknown
Group.characteristic.​code.coding | Base | required | PDex Multi-Member Match Result Value Set | 📦2.1.1 | This IG
Group.characteristic.​value[x] | Base | example |  | Not State | Unknown
Group.member.entity.​type | Base | extensible | ResourceType | 📍4.0.1 | FHIR Std.

#### Constraints

Id | Grade | Path(s) | Description | Expression
dom-2 | error | Group | If the resource is contained in another resource, it SHALL NOT contain nested Resources | `contained.contained.empty()`
dom-3 | error | Group | 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 | Group | 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 | Group | If a resource is contained in another resource, it SHALL NOT have a security label | `contained.meta.security.empty()`
dom-6 | best practice | Group | 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()`
grp-1 | error | Group | Can only have members if group is "actual" | `member.empty() or (actual = true)`

This structure is derived from Group

Summary

Mandatory: 1 element
Must-Support: 5 elements

Extensions

This structure refers to these extensions:

- http://hl7.org/fhir/us/davinci-pdex/StructureDefinition/base-ext-match-parameters

Slices

This structure defines the following Slices:

- The element 1 is sliced based on the value of Group.characteristic.value[x]

Key Elements View

Name | Flags | Card. | Type | Description & Constraints Filter: Bindings Constraints Obligations
--- | --- | --- | --- | ---
Group | C | 0..* | Group | Group of multiple entities Constraints: grp-1
implicitRules | ?!Σ | 0..1 | uri | A set of rules under which this content was created
modifierExtension | ?! | 0..* | Extension | Extensions that cannot be ignored
type | Σ | 1..1 | code | person | animal | practitioner | device | medication | substance Binding: GroupType (required): Types of resources that are part of group.
actual | Σ C | 1..1 | boolean | Descriptive or actual
code | S Σ | 1..1 | CodeableConcept | Kind of Group members Binding: PDex Multi-Member Match Result Value Set (required)
characteristic |  | 0..* | BackboneElement | Include / Exclude group members by Trait
modifierExtension | ?!Σ | 0..* | Extension | Extensions that cannot be ignored even if unrecognized
code | S | 1..1 | CodeableConcept | Kind of characteristic Binding Description: (example): List of characteristics used to describe group members; e.g. gender, age, owner, location, etc.
coding | Σ | 0..* | Coding | Code defined by a terminology system Binding: PDex Multi-Member Match Result Value Set (required)
code | Σ | 0..1 | code | Symbol in syntax defined by the system Required Pattern: match
Slices for value[x] |  | 1..1 |  | Value held by characteristic Slice: Unordered, Open by type:$this Binding Description: (example): Value of descriptive member characteristic; e.g. red, male, pneumonia, Caucasian, etc.
valueCodeableConcept |  |  | CodeableConcept |
valueBoolean |  |  | boolean |
valueQuantity |  |  | Quantity |
valueRange |  |  | Range |
valueReference |  |  | Reference(Any) |
value[x]:valueReference | S | 0..1 | Reference() | Value held by characteristic
exclude |  | 1..1 | boolean | Group includes or excludes Required Pattern: false
period | S | 0..1 | Period | Period over which characteristic is tested
member | C | 0..* | BackboneElement | Who or what is in group
modifierExtension | ?!Σ | 0..* | Extension | Extensions that cannot be ignored even if unrecognized
entity |  | 1..1 | Reference(Patient | Practitioner | PractitionerRole | Device | Medication | Substance | Group) | Reference to the group member
Slices for extension |  |  |  | Content/Rules for all slices
extension:matchedMember | S | 0..1 | Reference(Patient) | Member-Match Input Patient Parameter URL: http://hl7.org/fhir/us/davinci-pdex/StructureDefinition/base-ext-match-parameters
Documentation for this format

#### Terminology Bindings

Path | Status | Usage | ValueSet | Version | Source
Group.type | Base | required | GroupType | 📍4.0.1 | FHIR Std.
Group.code | Base | required | PDex Multi-Member Match Result Value Set | 📦2.1.1 | This IG
Group.characteristic.​code | Base | example |  | Not State | Unknown
Group.characteristic.​code.coding | Base | required | PDex Multi-Member Match Result Value Set | 📦2.1.1 | This IG
Group.characteristic.​value[x] | Base | example |  | Not State | Unknown

#### Constraints

Id | Grade | Path(s) | Description | Expression
dom-2 | error | Group | If the resource is contained in another resource, it SHALL NOT contain nested Resources | `contained.contained.empty()`
dom-3 | error | Group | 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 | Group | 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 | Group | If a resource is contained in another resource, it SHALL NOT have a security label | `contained.meta.security.empty()`
dom-6 | best practice | Group | 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()`
grp-1 | error | Group | Can only have members if group is "actual" | `member.empty() or (actual = true)`

Differential View

This structure is derived from Group

Name | Flags | Card. | Type | Description & Constraints Filter: Bindings Constraints Obligations
--- | --- | --- | --- | ---
Group |  | 0..* | Group | Group of multiple entities
code | S | 1..1 | CodeableConcept | Kind of Group members Binding: PDex Multi-Member Match Result Value Set (required)
characteristic |  |  |  |
code | S | 1..1 | CodeableConcept | Kind of characteristic
coding |  | 0..* | Coding | Code defined by a terminology system Binding: PDex Multi-Member Match Result Value Set (required)
code |  | 0..1 | code | Symbol in syntax defined by the system Required Pattern: match
Slices for value[x] |  | 1..1 | CodeableConcept, boolean, Quantity, Range, Reference() | Value held by characteristic Slice: Unordered, Open by type:$this
value[x]:valueReference | S | 0..1 | Reference() | Value held by characteristic
exclude |  | 1..1 | boolean | Group includes or excludes Required Pattern: false
period | S | 0..1 | Period | Period over which characteristic is tested
member |  |  |  |
entity |  |  |  |
Slices for extension |  |  |  | Content/Rules for all slices
extension:matchedMember | S | 0..1 | Reference(Patient) | Member-Match Input Patient Parameter URL: http://hl7.org/fhir/us/davinci-pdex/StructureDefinition/base-ext-match-parameters
Documentation for this format

#### Terminology Bindings (Differential)

Path | Status | Usage | ValueSet | Version | Source
Group.code | Base | required | PDex Multi-Member Match Result Value Set | 📦2.1.1 | This IG
Group.characteristic.​code.coding | Base | required | PDex Multi-Member Match Result Value Set | 📦2.1.1 | This IG

Snapshot View

Name | Flags | Card. | Type | Description & Constraints Filter: Bindings Constraints Obligations
--- | --- | --- | --- | ---
Group | C | 0..* | Group | Group of multiple entities Constraints: grp-1
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
identifier | Σ | 0..* | Identifier | Unique id
active | Σ | 0..1 | boolean | Whether this group's record is in active use
type | Σ | 1..1 | code | person | animal | practitioner | device | medication | substance Binding: GroupType (required): Types of resources that are part of group.
actual | Σ C | 1..1 | boolean | Descriptive or actual
code | S Σ | 1..1 | CodeableConcept | Kind of Group members Binding: PDex Multi-Member Match Result Value Set (required)
name | Σ | 0..1 | string | Label for Group
quantity | Σ | 0..1 | unsignedInt | Number of members
managingEntity | Σ | 0..1 | Reference(Organization | RelatedPerson | Practitioner | PractitionerRole) | Entity that is the custodian of the Group's definition
characteristic |  | 0..* | BackboneElement | Include / Exclude group members by Trait
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
code | S | 1..1 | CodeableConcept | Kind of characteristic Binding Description: (example): List of characteristics used to describe group members; e.g. gender, age, owner, location, etc.
id |  | 0..1 | string | Unique id for inter-element referencing
extension |  | 0..* | Extension | Additional content defined by implementations Slice: Unordered, Open by value:url
coding | Σ | 0..* | Coding | Code defined by a terminology system Binding: PDex Multi-Member Match Result Value Set (required)
id |  | 0..1 | string | Unique id for inter-element referencing
extension |  | 0..* | Extension | Additional content defined by implementations Slice: Unordered, Open by value:url
system | Σ | 0..1 | uri | Identity of the terminology system
version | Σ | 0..1 | string | Version of the system - if relevant
code | Σ | 0..1 | code | Symbol in syntax defined by the system Required Pattern: match
display | Σ | 0..1 | string | Representation defined by the system
userSelected | Σ | 0..1 | boolean | If this coding was chosen directly by the user
text | Σ | 0..1 | string | Plain text representation of the concept
Slices for value[x] |  | 1..1 |  | Value held by characteristic Slice: Unordered, Open by type:$this Binding Description: (example): Value of descriptive member characteristic; e.g. red, male, pneumonia, Caucasian, etc.
valueCodeableConcept |  |  | CodeableConcept |
valueBoolean |  |  | boolean |
valueQuantity |  |  | Quantity |
valueRange |  |  | Range |
valueReference |  |  | Reference(Any) |
value[x]:valueReference | S | 0..1 | Reference() | Value held by characteristic
exclude |  | 1..1 | boolean | Group includes or excludes Required Pattern: false
period | S | 0..1 | Period | Period over which characteristic is tested
member | C | 0..* | BackboneElement | Who or what is in group
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
entity |  | 1..1 | Reference(Patient | Practitioner | PractitionerRole | Device | Medication | Substance | Group) | Reference to the group member
id |  | 0..1 | string | Unique id for inter-element referencing
Slices for extension |  | 0..* | Extension | Additional content defined by implementations Slice: Unordered, Open by value:url
extension:matchedMember | S | 0..1 | Reference(Patient) | Member-Match Input Patient Parameter URL: http://hl7.org/fhir/us/davinci-pdex/StructureDefinition/base-ext-match-parameters
reference | Σ C | 0..1 | string | Literal reference, Relative, internal or absolute URL
type | Σ | 0..1 | uri | Type the reference refers to (e.g. "Patient") Binding: ResourceType (extensible): Aa resource (or, for logical models, the URI of the logical model).
identifier | Σ | 0..1 | Identifier | Logical reference, when literal reference is not known
display | Σ | 0..1 | string | Text alternative for the resource
period |  | 0..1 | Period | Period member belonged to the group
inactive |  | 0..1 | boolean | If member is no longer in group
Documentation for this format

#### Terminology Bindings

Path | Status | Usage | ValueSet | Version | Source
Group.language | Base | preferred | Common Languages | 📍4.0.1 | FHIR Std.
Group.type | Base | required | GroupType | 📍4.0.1 | FHIR Std.
Group.code | Base | required | PDex Multi-Member Match Result Value Set | 📦2.1.1 | This IG
Group.characteristic.​code | Base | example |  | Not State | Unknown
Group.characteristic.​code.coding | Base | required | PDex Multi-Member Match Result Value Set | 📦2.1.1 | This IG
Group.characteristic.​value[x] | Base | example |  | Not State | Unknown
Group.member.entity.​type | Base | extensible | ResourceType | 📍4.0.1 | FHIR Std.

#### Constraints

Id | Grade | Path(s) | Description | Expression
dom-2 | error | Group | If the resource is contained in another resource, it SHALL NOT contain nested Resources | `contained.contained.empty()`
dom-3 | error | Group | 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 | Group | 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 | Group | If a resource is contained in another resource, it SHALL NOT have a security label | `contained.meta.security.empty()`
dom-6 | best practice | Group | 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()`
grp-1 | error | Group | Can only have members if group is "actual" | `member.empty() or (actual = true)`

This structure is derived from Group

Summary

Mandatory: 1 element
Must-Support: 5 elements

Extensions

This structure refers to these extensions:

- http://hl7.org/fhir/us/davinci-pdex/StructureDefinition/base-ext-match-parameters

Slices

This structure defines the following Slices:

- The element 1 is sliced based on the value of Group.characteristic.value[x]

Other representations of profile: CSV, Excel, Schematron

### Notes:

#### Mandatory Search Parameters

1. SHALL support searching for code for a Group. Group_Code Search Parameter

   `GET [base]/Group?code={code}`

   Example:

   GET [base]/Group?code="match"

   NOTE:

   Server should limit responses to records that requesting user or service (i.e. Payer in case of Member-Match) is permitted to access. For example, Matched Group lists for a Payer.

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