De-identified, Anonymized FHIR Profiles Library
1.0.0-ballot - STU 1 Ballot

De-identified, Anonymized FHIR Profiles Library - Downloaded Version 1.0.0-ballot See the Directory of published versions

## Resource Profile: DAPL De-identified Encounter

Official URL: http://hl7.org/fhir/us/dapl/StructureDefinition/dapl-deidentified-encounter | Version: 1.0.0-ballot
Standards status: Trial-use | Maturity Level: 2 | Computable Name: DAPLEncounter

The profile establishes the core elements, extensions, vocabularies and value sets for representing deidentified encounters or visit information.

All canonical (Official) URLs will be changed in the future and are not available currently on the web.

### Introduction

This profile is used to represent de-identified Encounter information. The de-identification process has to remove all data elements not explicitly identified as "SUPPORTED" in the profile.

The HHS De-identification Guidance is to be followed to ensure appropriate level of de-identification is performed.

According to the HHS guidance, dates should not have a precision of more than the year. This means month and day cannot be included. This includes diagnosis dates, visit dates, onset dates etc.

In FHIR Resources, text elements and reference.display elements which provide human readable information to the providers may be generated using programs and tools from the data present within the resource. For e.g a Encounter resource text element may contain information such as the visit date. This type of information will enable identification of the individuals. In order to avoid inadvertent revealing of PII/PHI, text elements cannot be included in the De-identified FHIR resource and the submission will be rejected when text elements are present by the validation process.

Age Computation

The Data Submitter has to compute the age using the visit date of the encounter to be included in the encounter resource as part of the data exchange.

Capturing Location Information

The Encounter.location.location points to a Location Resource. The Location.type element can be used to indicate the type of location where the service was provided. The existing Location.type value set can be used to indicate that the service was provided in a SCHOOL based setting.

Ids and References

The original Encounter resource id should not be included in the De-identified Encounter instance. Instead a new id should be created and provided as part of the FHIR resource. This Data Submitter should be capable of using the generated id to relink the data to the original Encounter. All resource references to the Encounter submitted as part of the data exchange should refer to newly generated id.

Resource references cannot contain text element as it may contain PHI/PII. The text element for following references are not allowed

- subject
- reasonReference

Date Truncation

The DARTS Service Provider has to truncate the following dates to only have a precision of year

- period and its sub elements.
- participant.period

Examples

Examples of identifiable data and its corresponding de-identifiable data are present in the FHIR Artifacts examples

Usages:

- Refer to this Profile: DAPL Clinical Result Observation, DAPL Diagnosis, DAPL Lab Observation, DAPL MedicationRequest... Show 2 more, DAPL Procedure and DAPL ServiceRequest
- Examples for this Profile: Encounter/de-identified-example

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
--- | --- | --- | --- | ---
Encounter |  | 0..* | Encounter | DAPL Deidentified Encounter
id | S Σ | 0..1 | id | The Encounter identifier generated by DARTS deidentification service
implicitRules | ?!Σ | 0..1 | uri | A set of rules under which this content was created
Slices for extension |  | 1..* | Extension | Extension Slice: Unordered, Open by value:url
extension:dapl-age-extension | S | 1..1 | Quantity, Range | Age of the Patient computed using birthDate and the visit dates of the encounter URL: http://hl7.org/fhir/us/dapl/StructureDefinition/dapl-age-extension
modifierExtension | ?! | 0..* | Extension | Extensions that cannot be ignored
status | ?!S Σ | 1..1 | code | planned | arrived | triaged | in-progress | onleave | finished | cancelled + Binding: EncounterStatus (required): Current state of the encounter.
class | S Σ | 1..1 | Coding | Classification of patient encounter Binding: ActEncounterCode (extensible): Classification of the encounter.
type | S Σ | 1..* | CodeableConcept | Specific type of encounter Binding: Encounter Type (extensible): The set of codes indicating the type of encounter
subject | S Σ | 1..1 | Reference(DAPL De-identified Patient) | The patient or group present at the encounter
participant | S Σ | 0..1 | BackboneElement | List of participants involved in the encounter
modifierExtension | ?!Σ | 0..* | Extension | Extensions that cannot be ignored even if unrecognized
type | S Σ | 0..* | CodeableConcept | Role of participant in encounter Binding: ParticipantType (extensible): Role of participant in encounter.
period | S C | 0..1 | Period | Period of time during the encounter that the participant participated Constraints: dapl-enc-1, dapl-enc-1a, dapl-enc-2, uds-plus-enc-2a
individual | S Σ | 0..1 | Reference(US Core Practitioner Profile) | Persons involved in the encounter other than the patient
period | S C | 0..1 | Period | The start and end time of the encounter Constraints: dapl-enc-3, dapl-enc-3a, dapl-enc-4, uds-plus-enc-4a
reasonCode | S Σ | 0..* | CodeableConcept | Coded reason the encounter takes place Binding: EncounterReasonCodes (preferred): Reason why the encounter takes place.
reasonReference | S Σ | 0..* | Reference(DAPL Diagnosis) | Reason the encounter takes place (reference)
diagnosis | S Σ | 0..* | BackboneElement | The list of diagnosis relevant to this encounter
modifierExtension | ?!Σ | 0..* | Extension | Extensions that cannot be ignored even if unrecognized
condition | S Σ | 1..1 | Reference(DAPL Diagnosis) | The diagnosis or procedure relevant to the encounter
use | S | 0..1 | CodeableConcept | Role that this diagnosis has within the encounter (e.g. admission, billing, discharge …) Binding: DiagnosisRole (preferred): The type of diagnosis this condition represents.
rank | S | 0..1 | positiveInt | Ranking of the diagnosis (for each role type)
hospitalization | S | 0..1 | BackboneElement | Details about the admission to a healthcare service
modifierExtension | ?!Σ | 0..* | Extension | Extensions that cannot be ignored even if unrecognized
dischargeDisposition | S | 0..1 | CodeableConcept | Category or kind of location after discharge Binding: USEncounterDischargeDisposition (5.0.0) (preferred): The set of codes indicating the discharge disposition
location | S | 0..* | BackboneElement | List of locations where the patient has been
modifierExtension | ?!Σ | 0..* | Extension | Extensions that cannot be ignored even if unrecognized
location | S | 1..1 | Reference(DAPL De-identified Location) | Location the encounter takes place
serviceProvider | S | 0..1 | Reference(US Core Organization Profile) | The organization (facility) responsible for this encounter
Documentation for this format

#### Terminology Bindings

Path | Status | Usage | ValueSet | Version | Source
Encounter.status | Base | required | EncounterStatus | 📍4.0.1 | FHIR Std.
Encounter.class | Base | extensible | ActEncounterCode | 📦3.0.0 | THO v7.1
Encounter.type | Base | extensible | Encounter Type | 📦20250510 | VSAC v0.24
Encounter.participant.​type | Base | extensible | Participant type | 📍4.0.1 | FHIR Std.
Encounter.reasonCode | Base | preferred | Encounter Reason Codes | 📍4.0.1 | FHIR Std.
Encounter.diagnosis.​use | Base | preferred | DiagnosisRole | 📍4.0.1 | FHIR Std.
Encounter.hospitalization.​dischargeDisposition | Base | preferred | USEncounterDischargeDisposition | 📍5.0.0 | THO v7.1

#### Constraints

Id | Grade | Path(s) | Description | Expression
dapl-enc-1 | error | Encounter.participant.period | All Period.start data elements should be truncated to a year only for de-identified resources. | `$this is Period and $this.start.exists() implies $this.start.toString().length() = 4`
dapl-enc-1a | error | Encounter.participant.period | All Period.start data elements should have valid year > 1900 | `$this is Period and Period.start.exists() implies $this.start.toString() >= '1900'`
dapl-enc-2 | error | Encounter.participant.period | All Period.emd data elements should be truncated to a year only for de-identified resources. | `$this is Period and $this.end.exists() implies $this.end.toString().length() = 4`
dapl-enc-3 | error | Encounter.period | All Period.start data elements should be truncated to a year only for de-identified resources. | `$this is Period and $this.start.exists() implies $this.start.toString().length() = 4`
dapl-enc-3a | error | Encounter.period | All Period.start data elements should have valid year > 1900 | `$this is Period and Period.start.exists() implies $this.start.toString() >= '1900'`
dapl-enc-4 | error | Encounter.period | All Period.emd data elements should be truncated to a year only for de-identified resources. | `$this is Period and $this.end.exists() implies $this.end.toString().length() = 4`
dom-2 | error | Encounter | If the resource is contained in another resource, it SHALL NOT contain nested Resources | `contained.contained.empty()`
dom-3 | error | Encounter | If the resource is contained in another resource, it SHALL be referred to from elsewhere in the resource or SHALL refer to the containing resource | `contained.where((('#'+id in (%resource.descendants().reference | %resource.descendants().as(canonical) | %resource.descendants().as(uri) | %resource.descendants().as(url))) or descendants().where(reference = '#').exists() or descendants().where(as(canonical) = '#').exists() or descendants().where(as(canonical) = '#').exists()).not()).trace('unmatched', id).empty()`
dom-4 | error | Encounter | If a resource is contained in another resource, it SHALL NOT have a meta.versionId or a meta.lastUpdated | `contained.meta.versionId.empty() and contained.meta.lastUpdated.empty()`
dom-5 | error | Encounter | If a resource is contained in another resource, it SHALL NOT have a security label | `contained.meta.security.empty()`
dom-6 | best practice | Encounter | A resource should have narrative for robust management | `text.`div`.exists()`
ele-1 | error | **ALL** elements | All FHIR elements must have a @value or children | `hasValue() or (children().count() > id.count())`
ext-1 | error | **ALL** extensions | Must have either extensions or value[x], not both | `extension.exists() != value.exists()`
uds-plus-enc-2a | error | Encounter.participant.period | All Period.end data elements should have valid year > 1900 | `$this is Period and Period.end.exists() implies $this.end.toString() >= '1900'`
uds-plus-enc-4a | error | Encounter.period | All Period.end data elements should have valid year > 1900 | `$this is Period and Period.end.exists() implies $this.end.toString() >= '1900'`

This structure is derived from Encounter

Name | Flags | Card. | Type | Description & Constraints Filter: Bindings Constraints Obligations
--- | --- | --- | --- | ---
Encounter |  | 0..* | Encounter | DAPL Deidentified Encounter
id | S | 0..1 | id | The Encounter identifier generated by DARTS deidentification service
text |  | 0..0 |  | Cannot include any text in the resource as part of the deidentified data.
contained |  | 0..0 |  | Cannot include any contained resources in the resource as part of the deidentified data.
Slices for extension |  |  |  | Content/Rules for all slices
extension:dapl-age-extension | S | 1..1 | Quantity, Range | Age of the Patient computed using birthDate and the visit dates of the encounter URL: http://hl7.org/fhir/us/dapl/StructureDefinition/dapl-age-extension
status | S | 1..1 | code | planned | arrived | triaged | in-progress | onleave | finished | cancelled +
class | S | 1..1 | Coding | Classification of patient encounter
type | S | 1..* | CodeableConcept | Specific type of encounter Binding: Encounter Type (extensible): The set of codes indicating the type of encounter
subject | S | 1..1 | Reference(DAPL De-identified Patient) | The patient or group present at the encounter
display |  | 0..0 |  | Text alternative for the resource
participant | S | 0..1 | BackboneElement | List of participants involved in the encounter
type | S | 0..* | CodeableConcept | Role of participant in encounter
period | S C | 0..1 | Period | Period of time during the encounter that the participant participated Constraints: dapl-enc-1, dapl-enc-1a, dapl-enc-2, uds-plus-enc-2a
individual | S | 0..1 | Reference(US Core Practitioner Profile) | Persons involved in the encounter other than the patient
period | S C | 0..1 | Period | The start and end time of the encounter Constraints: dapl-enc-3, dapl-enc-3a, dapl-enc-4, uds-plus-enc-4a
reasonCode | S | 0..* | CodeableConcept | Coded reason the encounter takes place
reasonReference | S | 0..* | Reference(DAPL Diagnosis) | Reason the encounter takes place (reference)
display |  | 0..0 |  | Text alternative for the resource
diagnosis | S | 0..* | BackboneElement | The list of diagnosis relevant to this encounter
condition | S | 1..1 | Reference(DAPL Diagnosis) | The diagnosis or procedure relevant to the encounter
use | S | 0..1 | CodeableConcept | Role that this diagnosis has within the encounter (e.g. admission, billing, discharge …)
rank | S | 0..1 | positiveInt | Ranking of the diagnosis (for each role type)
hospitalization | S | 0..1 | BackboneElement | Details about the admission to a healthcare service
dischargeDisposition | S | 0..1 | CodeableConcept | Category or kind of location after discharge Binding: USEncounterDischargeDisposition (5.0.0) (preferred): The set of codes indicating the discharge disposition
location | S | 0..* | BackboneElement | List of locations where the patient has been
location | S | 1..1 | Reference(DAPL De-identified Location) | Location the encounter takes place
serviceProvider | S | 0..1 | Reference(US Core Organization Profile) | The organization (facility) responsible for this encounter
Documentation for this format

#### Terminology Bindings (Differential)

Path | Status | Usage | ValueSet | Version | Source
Encounter.type | Base | extensible | Encounter Type | 📦20250510 | VSAC v0.24
Encounter.hospitalization.​dischargeDisposition | Base | preferred | USEncounterDischargeDisposition | 📍5.0.0 | THO v7.1

#### Constraints

Id | Grade | Path(s) | Description | Expression
dapl-enc-1 | error | Encounter.participant.period | All Period.start data elements should be truncated to a year only for de-identified resources. | `$this is Period and $this.start.exists() implies $this.start.toString().length() = 4`
dapl-enc-1a | error | Encounter.participant.period | All Period.start data elements should have valid year > 1900 | `$this is Period and Period.start.exists() implies $this.start.toString() >= '1900'`
dapl-enc-2 | error | Encounter.participant.period | All Period.emd data elements should be truncated to a year only for de-identified resources. | `$this is Period and $this.end.exists() implies $this.end.toString().length() = 4`
dapl-enc-3 | error | Encounter.period | All Period.start data elements should be truncated to a year only for de-identified resources. | `$this is Period and $this.start.exists() implies $this.start.toString().length() = 4`
dapl-enc-3a | error | Encounter.period | All Period.start data elements should have valid year > 1900 | `$this is Period and Period.start.exists() implies $this.start.toString() >= '1900'`
dapl-enc-4 | error | Encounter.period | All Period.emd data elements should be truncated to a year only for de-identified resources. | `$this is Period and $this.end.exists() implies $this.end.toString().length() = 4`
uds-plus-enc-2a | error | Encounter.participant.period | All Period.end data elements should have valid year > 1900 | `$this is Period and Period.end.exists() implies $this.end.toString() >= '1900'`
uds-plus-enc-4a | error | Encounter.period | All Period.end data elements should have valid year > 1900 | `$this is Period and Period.end.exists() implies $this.end.toString() >= '1900'`

Name | Flags | Card. | Type | Description & Constraints Filter: Bindings Constraints Obligations
--- | --- | --- | --- | ---
Encounter |  | 0..* | Encounter | DAPL Deidentified Encounter
id | S Σ | 0..1 | id | The Encounter identifier generated by DARTS deidentification service
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
Slices for extension |  | 1..* | Extension | Extension Slice: Unordered, Open by value:url
extension:dapl-age-extension | S | 1..1 | Quantity, Range | Age of the Patient computed using birthDate and the visit dates of the encounter URL: http://hl7.org/fhir/us/dapl/StructureDefinition/dapl-age-extension
modifierExtension | ?! | 0..* | Extension | Extensions that cannot be ignored
identifier | Σ | 0..* | Identifier | Identifier(s) by which this encounter is known
status | ?!S Σ | 1..1 | code | planned | arrived | triaged | in-progress | onleave | finished | cancelled + Binding: EncounterStatus (required): Current state of the encounter.
statusHistory |  | 0..* | BackboneElement | List of past encounter statuses
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
status |  | 1..1 | code | planned | arrived | triaged | in-progress | onleave | finished | cancelled + Binding: EncounterStatus (required): Current state of the encounter.
period |  | 1..1 | Period | The time that the episode was in the specified status
class | S Σ | 1..1 | Coding | Classification of patient encounter Binding: ActEncounterCode (extensible): Classification of the encounter.
classHistory |  | 0..* | BackboneElement | List of past encounter classes
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
class |  | 1..1 | Coding | inpatient | outpatient | ambulatory | emergency + Binding: ActEncounterCode (extensible): Classification of the encounter.
period |  | 1..1 | Period | The time that the episode was in the specified class
type | S Σ | 1..* | CodeableConcept | Specific type of encounter Binding: Encounter Type (extensible): The set of codes indicating the type of encounter
serviceType | Σ | 0..1 | CodeableConcept | Specific type of service Binding: ServiceType (example): Broad categorization of the service that is to be provided.
priority |  | 0..1 | CodeableConcept | Indicates the urgency of the encounter Binding: ActPriority (example): Indicates the urgency of the encounter.
subject | S Σ | 1..1 | Reference(DAPL De-identified Patient) | The patient or group present at the encounter
id |  | 0..1 | string | Unique id for inter-element referencing
extension |  | 0..* | Extension | Additional content defined by implementations Slice: Unordered, Open by value:url
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
episodeOfCare | Σ | 0..* | Reference(EpisodeOfCare) | Episode(s) of care that this encounter should be recorded against
basedOn |  | 0..* | Reference(ServiceRequest) | The ServiceRequest that initiated this encounter
participant | S Σ | 0..1 | BackboneElement | List of participants involved in the encounter
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 | S Σ | 0..* | CodeableConcept | Role of participant in encounter Binding: ParticipantType (extensible): Role of participant in encounter.
period | S C | 0..1 | Period | Period of time during the encounter that the participant participated Constraints: dapl-enc-1, dapl-enc-1a, dapl-enc-2, uds-plus-enc-2a
individual | S Σ | 0..1 | Reference(US Core Practitioner Profile) | Persons involved in the encounter other than the patient
appointment | Σ | 0..* | Reference(Appointment) | The appointment that scheduled this encounter
period | S C | 0..1 | Period | The start and end time of the encounter Constraints: dapl-enc-3, dapl-enc-3a, dapl-enc-4, uds-plus-enc-4a
length |  | 0..1 | Duration | Quantity of time the encounter lasted (less time absent)
reasonCode | S Σ | 0..* | CodeableConcept | Coded reason the encounter takes place Binding: EncounterReasonCodes (preferred): Reason why the encounter takes place.
reasonReference | S Σ | 0..* | Reference(DAPL Diagnosis) | Reason the encounter takes place (reference)
id |  | 0..1 | string | Unique id for inter-element referencing
extension |  | 0..* | Extension | Additional content defined by implementations Slice: Unordered, Open by value:url
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
diagnosis | S Σ | 0..* | BackboneElement | The list of diagnosis relevant to this encounter
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
condition | S Σ | 1..1 | Reference(DAPL Diagnosis) | The diagnosis or procedure relevant to the encounter
use | S | 0..1 | CodeableConcept | Role that this diagnosis has within the encounter (e.g. admission, billing, discharge …) Binding: DiagnosisRole (preferred): The type of diagnosis this condition represents.
rank | S | 0..1 | positiveInt | Ranking of the diagnosis (for each role type)
account |  | 0..* | Reference(Account) | The set of accounts that may be used for billing for this Encounter
hospitalization | S | 0..1 | BackboneElement | Details about the admission to a healthcare service
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
preAdmissionIdentifier |  | 0..1 | Identifier | Pre-admission identifier
origin |  | 0..1 | Reference(Location | Organization) | The location/organization from which the patient came before admission
admitSource |  | 0..1 | CodeableConcept | From where patient was admitted (physician referral, transfer) Binding: AdmitSource (preferred): From where the patient was admitted.
reAdmission |  | 0..1 | CodeableConcept | The type of hospital re-admission that has occurred (if any). If the value is absent, then this is not identified as a readmission Binding: Hl7VSReAdmissionIndicator (3.0.0) (example): The reason for re-admission of this hospitalization encounter.
dietPreference |  | 0..* | CodeableConcept | Diet preferences reported by the patient Binding: Diet (example): Medical, cultural or ethical food preferences to help with catering requirements.
specialCourtesy |  | 0..* | CodeableConcept | Special courtesies (VIP, board member) Binding: SpecialCourtesy (preferred): Special courtesies.
specialArrangement |  | 0..* | CodeableConcept | Wheelchair, translator, stretcher, etc. Binding: SpecialArrangements (preferred): Special arrangements.
destination |  | 0..1 | Reference(Location | Organization) | Location/organization to which the patient is discharged
dischargeDisposition | S | 0..1 | CodeableConcept | Category or kind of location after discharge Binding: USEncounterDischargeDisposition (5.0.0) (preferred): The set of codes indicating the discharge disposition
location | S | 0..* | BackboneElement | List of locations where the patient has been
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
location | S | 1..1 | Reference(DAPL De-identified Location) | Location the encounter takes place
status |  | 0..1 | code | planned | active | reserved | completed Binding: EncounterLocationStatus (required): The status of the location.
physicalType |  | 0..1 | CodeableConcept | The physical type of the location (usually the level in the location hierachy - bed room ward etc.) Binding: LocationType (example): Physical form of the location.
period |  | 0..1 | Period | Time period during which the patient was present at the location
serviceProvider | S | 0..1 | Reference(US Core Organization Profile) | The organization (facility) responsible for this encounter
partOf |  | 0..1 | Reference(Encounter) | Another Encounter this encounter is part of
Documentation for this format

#### Terminology Bindings

Path | Status | Usage | ValueSet | Version | Source
Encounter.language | Base | preferred | Common Languages | 📍4.0.1 | FHIR Std.
Encounter.status | Base | required | EncounterStatus | 📍4.0.1 | FHIR Std.
Encounter.statusHistory.​status | Base | required | EncounterStatus | 📍4.0.1 | FHIR Std.
Encounter.class | Base | extensible | ActEncounterCode | 📦3.0.0 | THO v7.1
Encounter.classHistory.​class | Base | extensible | ActEncounterCode | 📦3.0.0 | THO v7.1
Encounter.type | Base | extensible | Encounter Type | 📦20250510 | VSAC v0.24
Encounter.serviceType | Base | example | Service type | 📍4.0.1 | FHIR Std.
Encounter.priority | Base | example | ActPriority | 📦3.0.0 | THO v7.1
Encounter.subject.type | Base | extensible | ResourceType | 📍4.0.1 | FHIR Std.
Encounter.participant.​type | Base | extensible | Participant type | 📍4.0.1 | FHIR Std.
Encounter.reasonCode | Base | preferred | Encounter Reason Codes | 📍4.0.1 | FHIR Std.
Encounter.reasonReference.​type | Base | extensible | ResourceType | 📍4.0.1 | FHIR Std.
Encounter.diagnosis.​use | Base | preferred | DiagnosisRole | 📍4.0.1 | FHIR Std.
Encounter.hospitalization.​admitSource | Base | preferred | Admit source | 📍4.0.1 | FHIR Std.
Encounter.hospitalization.​reAdmission | Base | example | hl7VS-re-admissionIndicator | 📍3.0.0 | THO v7.1
Encounter.hospitalization.​dietPreference | Base | example | Diet | 📍4.0.1 | FHIR Std.
Encounter.hospitalization.​specialCourtesy | Base | preferred | Special courtesy | 📍4.0.1 | FHIR Std.
Encounter.hospitalization.​specialArrangement | Base | preferred | Special arrangements | 📍4.0.1 | FHIR Std.
Encounter.hospitalization.​dischargeDisposition | Base | preferred | USEncounterDischargeDisposition | 📍5.0.0 | THO v7.1
Encounter.location.status | Base | required | EncounterLocationStatus | 📍4.0.1 | FHIR Std.
Encounter.location.physicalType | Base | example | Location type | 📍4.0.1 | FHIR Std.

#### Constraints

Id | Grade | Path(s) | Description | Expression
dapl-enc-1 | error | Encounter.participant.period | All Period.start data elements should be truncated to a year only for de-identified resources. | `$this is Period and $this.start.exists() implies $this.start.toString().length() = 4`
dapl-enc-1a | error | Encounter.participant.period | All Period.start data elements should have valid year > 1900 | `$this is Period and Period.start.exists() implies $this.start.toString() >= '1900'`
dapl-enc-2 | error | Encounter.participant.period | All Period.emd data elements should be truncated to a year only for de-identified resources. | `$this is Period and $this.end.exists() implies $this.end.toString().length() = 4`
dapl-enc-3 | error | Encounter.period | All Period.start data elements should be truncated to a year only for de-identified resources. | `$this is Period and $this.start.exists() implies $this.start.toString().length() = 4`
dapl-enc-3a | error | Encounter.period | All Period.start data elements should have valid year > 1900 | `$this is Period and Period.start.exists() implies $this.start.toString() >= '1900'`
dapl-enc-4 | error | Encounter.period | All Period.emd data elements should be truncated to a year only for de-identified resources. | `$this is Period and $this.end.exists() implies $this.end.toString().length() = 4`
dom-2 | error | Encounter | If the resource is contained in another resource, it SHALL NOT contain nested Resources | `contained.contained.empty()`
dom-3 | error | Encounter | If the resource is contained in another resource, it SHALL be referred to from elsewhere in the resource or SHALL refer to the containing resource | `contained.where((('#'+id in (%resource.descendants().reference | %resource.descendants().as(canonical) | %resource.descendants().as(uri) | %resource.descendants().as(url))) or descendants().where(reference = '#').exists() or descendants().where(as(canonical) = '#').exists() or descendants().where(as(canonical) = '#').exists()).not()).trace('unmatched', id).empty()`
dom-4 | error | Encounter | If a resource is contained in another resource, it SHALL NOT have a meta.versionId or a meta.lastUpdated | `contained.meta.versionId.empty() and contained.meta.lastUpdated.empty()`
dom-5 | error | Encounter | If a resource is contained in another resource, it SHALL NOT have a security label | `contained.meta.security.empty()`
dom-6 | best practice | Encounter | A resource should have narrative for robust management | `text.`div`.exists()`
ele-1 | error | **ALL** elements | All FHIR elements must have a @value or children | `hasValue() or (children().count() > id.count())`
ext-1 | error | **ALL** extensions | Must have either extensions or value[x], not both | `extension.exists() != value.exists()`
uds-plus-enc-2a | error | Encounter.participant.period | All Period.end data elements should have valid year > 1900 | `$this is Period and Period.end.exists() implies $this.end.toString() >= '1900'`
uds-plus-enc-4a | error | Encounter.period | All Period.end data elements should have valid year > 1900 | `$this is Period and Period.end.exists() implies $this.end.toString() >= '1900'`

This structure is derived from Encounter

Summary

Mandatory: 5 elements(2 nested mandatory elements)
Must-Support: 22 elements
Prohibited: 4 elements

Structures

This structure refers to these other structures:

- DAPL De-identified Patient (http://hl7.org/fhir/us/dapl/StructureDefinition/dapl-deidentified-patient)
- US Core Practitioner Profile (http://hl7.org/fhir/us/core/StructureDefinition/us-core-practitioner)
- DAPL Diagnosis (http://hl7.org/fhir/us/dapl/StructureDefinition/dapl-diagnosis)
- DAPL De-identified Location (http://hl7.org/fhir/us/dapl/StructureDefinition/dapl-deidentified-location)
- US Core Organization Profile (http://hl7.org/fhir/us/core/StructureDefinition/us-core-organization)

Extensions

This structure refers to these extensions:

- http://hl7.org/fhir/us/dapl/StructureDefinition/dapl-age-extension

Maturity: 2

Key Elements View

Name | Flags | Card. | Type | Description & Constraints Filter: Bindings Constraints Obligations
--- | --- | --- | --- | ---
Encounter |  | 0..* | Encounter | DAPL Deidentified Encounter
id | S Σ | 0..1 | id | The Encounter identifier generated by DARTS deidentification service
implicitRules | ?!Σ | 0..1 | uri | A set of rules under which this content was created
Slices for extension |  | 1..* | Extension | Extension Slice: Unordered, Open by value:url
extension:dapl-age-extension | S | 1..1 | Quantity, Range | Age of the Patient computed using birthDate and the visit dates of the encounter URL: http://hl7.org/fhir/us/dapl/StructureDefinition/dapl-age-extension
modifierExtension | ?! | 0..* | Extension | Extensions that cannot be ignored
status | ?!S Σ | 1..1 | code | planned | arrived | triaged | in-progress | onleave | finished | cancelled + Binding: EncounterStatus (required): Current state of the encounter.
class | S Σ | 1..1 | Coding | Classification of patient encounter Binding: ActEncounterCode (extensible): Classification of the encounter.
type | S Σ | 1..* | CodeableConcept | Specific type of encounter Binding: Encounter Type (extensible): The set of codes indicating the type of encounter
subject | S Σ | 1..1 | Reference(DAPL De-identified Patient) | The patient or group present at the encounter
participant | S Σ | 0..1 | BackboneElement | List of participants involved in the encounter
modifierExtension | ?!Σ | 0..* | Extension | Extensions that cannot be ignored even if unrecognized
type | S Σ | 0..* | CodeableConcept | Role of participant in encounter Binding: ParticipantType (extensible): Role of participant in encounter.
period | S C | 0..1 | Period | Period of time during the encounter that the participant participated Constraints: dapl-enc-1, dapl-enc-1a, dapl-enc-2, uds-plus-enc-2a
individual | S Σ | 0..1 | Reference(US Core Practitioner Profile) | Persons involved in the encounter other than the patient
period | S C | 0..1 | Period | The start and end time of the encounter Constraints: dapl-enc-3, dapl-enc-3a, dapl-enc-4, uds-plus-enc-4a
reasonCode | S Σ | 0..* | CodeableConcept | Coded reason the encounter takes place Binding: EncounterReasonCodes (preferred): Reason why the encounter takes place.
reasonReference | S Σ | 0..* | Reference(DAPL Diagnosis) | Reason the encounter takes place (reference)
diagnosis | S Σ | 0..* | BackboneElement | The list of diagnosis relevant to this encounter
modifierExtension | ?!Σ | 0..* | Extension | Extensions that cannot be ignored even if unrecognized
condition | S Σ | 1..1 | Reference(DAPL Diagnosis) | The diagnosis or procedure relevant to the encounter
use | S | 0..1 | CodeableConcept | Role that this diagnosis has within the encounter (e.g. admission, billing, discharge …) Binding: DiagnosisRole (preferred): The type of diagnosis this condition represents.
rank | S | 0..1 | positiveInt | Ranking of the diagnosis (for each role type)
hospitalization | S | 0..1 | BackboneElement | Details about the admission to a healthcare service
modifierExtension | ?!Σ | 0..* | Extension | Extensions that cannot be ignored even if unrecognized
dischargeDisposition | S | 0..1 | CodeableConcept | Category or kind of location after discharge Binding: USEncounterDischargeDisposition (5.0.0) (preferred): The set of codes indicating the discharge disposition
location | S | 0..* | BackboneElement | List of locations where the patient has been
modifierExtension | ?!Σ | 0..* | Extension | Extensions that cannot be ignored even if unrecognized
location | S | 1..1 | Reference(DAPL De-identified Location) | Location the encounter takes place
serviceProvider | S | 0..1 | Reference(US Core Organization Profile) | The organization (facility) responsible for this encounter
Documentation for this format

#### Terminology Bindings

Path | Status | Usage | ValueSet | Version | Source
Encounter.status | Base | required | EncounterStatus | 📍4.0.1 | FHIR Std.
Encounter.class | Base | extensible | ActEncounterCode | 📦3.0.0 | THO v7.1
Encounter.type | Base | extensible | Encounter Type | 📦20250510 | VSAC v0.24
Encounter.participant.​type | Base | extensible | Participant type | 📍4.0.1 | FHIR Std.
Encounter.reasonCode | Base | preferred | Encounter Reason Codes | 📍4.0.1 | FHIR Std.
Encounter.diagnosis.​use | Base | preferred | DiagnosisRole | 📍4.0.1 | FHIR Std.
Encounter.hospitalization.​dischargeDisposition | Base | preferred | USEncounterDischargeDisposition | 📍5.0.0 | THO v7.1

#### Constraints

Id | Grade | Path(s) | Description | Expression
dapl-enc-1 | error | Encounter.participant.period | All Period.start data elements should be truncated to a year only for de-identified resources. | `$this is Period and $this.start.exists() implies $this.start.toString().length() = 4`
dapl-enc-1a | error | Encounter.participant.period | All Period.start data elements should have valid year > 1900 | `$this is Period and Period.start.exists() implies $this.start.toString() >= '1900'`
dapl-enc-2 | error | Encounter.participant.period | All Period.emd data elements should be truncated to a year only for de-identified resources. | `$this is Period and $this.end.exists() implies $this.end.toString().length() = 4`
dapl-enc-3 | error | Encounter.period | All Period.start data elements should be truncated to a year only for de-identified resources. | `$this is Period and $this.start.exists() implies $this.start.toString().length() = 4`
dapl-enc-3a | error | Encounter.period | All Period.start data elements should have valid year > 1900 | `$this is Period and Period.start.exists() implies $this.start.toString() >= '1900'`
dapl-enc-4 | error | Encounter.period | All Period.emd data elements should be truncated to a year only for de-identified resources. | `$this is Period and $this.end.exists() implies $this.end.toString().length() = 4`
dom-2 | error | Encounter | If the resource is contained in another resource, it SHALL NOT contain nested Resources | `contained.contained.empty()`
dom-3 | error | Encounter | If the resource is contained in another resource, it SHALL be referred to from elsewhere in the resource or SHALL refer to the containing resource | `contained.where((('#'+id in (%resource.descendants().reference | %resource.descendants().as(canonical) | %resource.descendants().as(uri) | %resource.descendants().as(url))) or descendants().where(reference = '#').exists() or descendants().where(as(canonical) = '#').exists() or descendants().where(as(canonical) = '#').exists()).not()).trace('unmatched', id).empty()`
dom-4 | error | Encounter | If a resource is contained in another resource, it SHALL NOT have a meta.versionId or a meta.lastUpdated | `contained.meta.versionId.empty() and contained.meta.lastUpdated.empty()`
dom-5 | error | Encounter | If a resource is contained in another resource, it SHALL NOT have a security label | `contained.meta.security.empty()`
dom-6 | best practice | Encounter | A resource should have narrative for robust management | `text.`div`.exists()`
ele-1 | error | **ALL** elements | All FHIR elements must have a @value or children | `hasValue() or (children().count() > id.count())`
ext-1 | error | **ALL** extensions | Must have either extensions or value[x], not both | `extension.exists() != value.exists()`
uds-plus-enc-2a | error | Encounter.participant.period | All Period.end data elements should have valid year > 1900 | `$this is Period and Period.end.exists() implies $this.end.toString() >= '1900'`
uds-plus-enc-4a | error | Encounter.period | All Period.end data elements should have valid year > 1900 | `$this is Period and Period.end.exists() implies $this.end.toString() >= '1900'`

Differential View

This structure is derived from Encounter

Name | Flags | Card. | Type | Description & Constraints Filter: Bindings Constraints Obligations
--- | --- | --- | --- | ---
Encounter |  | 0..* | Encounter | DAPL Deidentified Encounter
id | S | 0..1 | id | The Encounter identifier generated by DARTS deidentification service
text |  | 0..0 |  | Cannot include any text in the resource as part of the deidentified data.
contained |  | 0..0 |  | Cannot include any contained resources in the resource as part of the deidentified data.
Slices for extension |  |  |  | Content/Rules for all slices
extension:dapl-age-extension | S | 1..1 | Quantity, Range | Age of the Patient computed using birthDate and the visit dates of the encounter URL: http://hl7.org/fhir/us/dapl/StructureDefinition/dapl-age-extension
status | S | 1..1 | code | planned | arrived | triaged | in-progress | onleave | finished | cancelled +
class | S | 1..1 | Coding | Classification of patient encounter
type | S | 1..* | CodeableConcept | Specific type of encounter Binding: Encounter Type (extensible): The set of codes indicating the type of encounter
subject | S | 1..1 | Reference(DAPL De-identified Patient) | The patient or group present at the encounter
display |  | 0..0 |  | Text alternative for the resource
participant | S | 0..1 | BackboneElement | List of participants involved in the encounter
type | S | 0..* | CodeableConcept | Role of participant in encounter
period | S C | 0..1 | Period | Period of time during the encounter that the participant participated Constraints: dapl-enc-1, dapl-enc-1a, dapl-enc-2, uds-plus-enc-2a
individual | S | 0..1 | Reference(US Core Practitioner Profile) | Persons involved in the encounter other than the patient
period | S C | 0..1 | Period | The start and end time of the encounter Constraints: dapl-enc-3, dapl-enc-3a, dapl-enc-4, uds-plus-enc-4a
reasonCode | S | 0..* | CodeableConcept | Coded reason the encounter takes place
reasonReference | S | 0..* | Reference(DAPL Diagnosis) | Reason the encounter takes place (reference)
display |  | 0..0 |  | Text alternative for the resource
diagnosis | S | 0..* | BackboneElement | The list of diagnosis relevant to this encounter
condition | S | 1..1 | Reference(DAPL Diagnosis) | The diagnosis or procedure relevant to the encounter
use | S | 0..1 | CodeableConcept | Role that this diagnosis has within the encounter (e.g. admission, billing, discharge …)
rank | S | 0..1 | positiveInt | Ranking of the diagnosis (for each role type)
hospitalization | S | 0..1 | BackboneElement | Details about the admission to a healthcare service
dischargeDisposition | S | 0..1 | CodeableConcept | Category or kind of location after discharge Binding: USEncounterDischargeDisposition (5.0.0) (preferred): The set of codes indicating the discharge disposition
location | S | 0..* | BackboneElement | List of locations where the patient has been
location | S | 1..1 | Reference(DAPL De-identified Location) | Location the encounter takes place
serviceProvider | S | 0..1 | Reference(US Core Organization Profile) | The organization (facility) responsible for this encounter
Documentation for this format

#### Terminology Bindings (Differential)

Path | Status | Usage | ValueSet | Version | Source
Encounter.type | Base | extensible | Encounter Type | 📦20250510 | VSAC v0.24
Encounter.hospitalization.​dischargeDisposition | Base | preferred | USEncounterDischargeDisposition | 📍5.0.0 | THO v7.1

#### Constraints

Id | Grade | Path(s) | Description | Expression
dapl-enc-1 | error | Encounter.participant.period | All Period.start data elements should be truncated to a year only for de-identified resources. | `$this is Period and $this.start.exists() implies $this.start.toString().length() = 4`
dapl-enc-1a | error | Encounter.participant.period | All Period.start data elements should have valid year > 1900 | `$this is Period and Period.start.exists() implies $this.start.toString() >= '1900'`
dapl-enc-2 | error | Encounter.participant.period | All Period.emd data elements should be truncated to a year only for de-identified resources. | `$this is Period and $this.end.exists() implies $this.end.toString().length() = 4`
dapl-enc-3 | error | Encounter.period | All Period.start data elements should be truncated to a year only for de-identified resources. | `$this is Period and $this.start.exists() implies $this.start.toString().length() = 4`
dapl-enc-3a | error | Encounter.period | All Period.start data elements should have valid year > 1900 | `$this is Period and Period.start.exists() implies $this.start.toString() >= '1900'`
dapl-enc-4 | error | Encounter.period | All Period.emd data elements should be truncated to a year only for de-identified resources. | `$this is Period and $this.end.exists() implies $this.end.toString().length() = 4`
uds-plus-enc-2a | error | Encounter.participant.period | All Period.end data elements should have valid year > 1900 | `$this is Period and Period.end.exists() implies $this.end.toString() >= '1900'`
uds-plus-enc-4a | error | Encounter.period | All Period.end data elements should have valid year > 1900 | `$this is Period and Period.end.exists() implies $this.end.toString() >= '1900'`

Snapshot View

Name | Flags | Card. | Type | Description & Constraints Filter: Bindings Constraints Obligations
--- | --- | --- | --- | ---
Encounter |  | 0..* | Encounter | DAPL Deidentified Encounter
id | S Σ | 0..1 | id | The Encounter identifier generated by DARTS deidentification service
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
Slices for extension |  | 1..* | Extension | Extension Slice: Unordered, Open by value:url
extension:dapl-age-extension | S | 1..1 | Quantity, Range | Age of the Patient computed using birthDate and the visit dates of the encounter URL: http://hl7.org/fhir/us/dapl/StructureDefinition/dapl-age-extension
modifierExtension | ?! | 0..* | Extension | Extensions that cannot be ignored
identifier | Σ | 0..* | Identifier | Identifier(s) by which this encounter is known
status | ?!S Σ | 1..1 | code | planned | arrived | triaged | in-progress | onleave | finished | cancelled + Binding: EncounterStatus (required): Current state of the encounter.
statusHistory |  | 0..* | BackboneElement | List of past encounter statuses
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
status |  | 1..1 | code | planned | arrived | triaged | in-progress | onleave | finished | cancelled + Binding: EncounterStatus (required): Current state of the encounter.
period |  | 1..1 | Period | The time that the episode was in the specified status
class | S Σ | 1..1 | Coding | Classification of patient encounter Binding: ActEncounterCode (extensible): Classification of the encounter.
classHistory |  | 0..* | BackboneElement | List of past encounter classes
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
class |  | 1..1 | Coding | inpatient | outpatient | ambulatory | emergency + Binding: ActEncounterCode (extensible): Classification of the encounter.
period |  | 1..1 | Period | The time that the episode was in the specified class
type | S Σ | 1..* | CodeableConcept | Specific type of encounter Binding: Encounter Type (extensible): The set of codes indicating the type of encounter
serviceType | Σ | 0..1 | CodeableConcept | Specific type of service Binding: ServiceType (example): Broad categorization of the service that is to be provided.
priority |  | 0..1 | CodeableConcept | Indicates the urgency of the encounter Binding: ActPriority (example): Indicates the urgency of the encounter.
subject | S Σ | 1..1 | Reference(DAPL De-identified Patient) | The patient or group present at the encounter
id |  | 0..1 | string | Unique id for inter-element referencing
extension |  | 0..* | Extension | Additional content defined by implementations Slice: Unordered, Open by value:url
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
episodeOfCare | Σ | 0..* | Reference(EpisodeOfCare) | Episode(s) of care that this encounter should be recorded against
basedOn |  | 0..* | Reference(ServiceRequest) | The ServiceRequest that initiated this encounter
participant | S Σ | 0..1 | BackboneElement | List of participants involved in the encounter
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 | S Σ | 0..* | CodeableConcept | Role of participant in encounter Binding: ParticipantType (extensible): Role of participant in encounter.
period | S C | 0..1 | Period | Period of time during the encounter that the participant participated Constraints: dapl-enc-1, dapl-enc-1a, dapl-enc-2, uds-plus-enc-2a
individual | S Σ | 0..1 | Reference(US Core Practitioner Profile) | Persons involved in the encounter other than the patient
appointment | Σ | 0..* | Reference(Appointment) | The appointment that scheduled this encounter
period | S C | 0..1 | Period | The start and end time of the encounter Constraints: dapl-enc-3, dapl-enc-3a, dapl-enc-4, uds-plus-enc-4a
length |  | 0..1 | Duration | Quantity of time the encounter lasted (less time absent)
reasonCode | S Σ | 0..* | CodeableConcept | Coded reason the encounter takes place Binding: EncounterReasonCodes (preferred): Reason why the encounter takes place.
reasonReference | S Σ | 0..* | Reference(DAPL Diagnosis) | Reason the encounter takes place (reference)
id |  | 0..1 | string | Unique id for inter-element referencing
extension |  | 0..* | Extension | Additional content defined by implementations Slice: Unordered, Open by value:url
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
diagnosis | S Σ | 0..* | BackboneElement | The list of diagnosis relevant to this encounter
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
condition | S Σ | 1..1 | Reference(DAPL Diagnosis) | The diagnosis or procedure relevant to the encounter
use | S | 0..1 | CodeableConcept | Role that this diagnosis has within the encounter (e.g. admission, billing, discharge …) Binding: DiagnosisRole (preferred): The type of diagnosis this condition represents.
rank | S | 0..1 | positiveInt | Ranking of the diagnosis (for each role type)
account |  | 0..* | Reference(Account) | The set of accounts that may be used for billing for this Encounter
hospitalization | S | 0..1 | BackboneElement | Details about the admission to a healthcare service
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
preAdmissionIdentifier |  | 0..1 | Identifier | Pre-admission identifier
origin |  | 0..1 | Reference(Location | Organization) | The location/organization from which the patient came before admission
admitSource |  | 0..1 | CodeableConcept | From where patient was admitted (physician referral, transfer) Binding: AdmitSource (preferred): From where the patient was admitted.
reAdmission |  | 0..1 | CodeableConcept | The type of hospital re-admission that has occurred (if any). If the value is absent, then this is not identified as a readmission Binding: Hl7VSReAdmissionIndicator (3.0.0) (example): The reason for re-admission of this hospitalization encounter.
dietPreference |  | 0..* | CodeableConcept | Diet preferences reported by the patient Binding: Diet (example): Medical, cultural or ethical food preferences to help with catering requirements.
specialCourtesy |  | 0..* | CodeableConcept | Special courtesies (VIP, board member) Binding: SpecialCourtesy (preferred): Special courtesies.
specialArrangement |  | 0..* | CodeableConcept | Wheelchair, translator, stretcher, etc. Binding: SpecialArrangements (preferred): Special arrangements.
destination |  | 0..1 | Reference(Location | Organization) | Location/organization to which the patient is discharged
dischargeDisposition | S | 0..1 | CodeableConcept | Category or kind of location after discharge Binding: USEncounterDischargeDisposition (5.0.0) (preferred): The set of codes indicating the discharge disposition
location | S | 0..* | BackboneElement | List of locations where the patient has been
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
location | S | 1..1 | Reference(DAPL De-identified Location) | Location the encounter takes place
status |  | 0..1 | code | planned | active | reserved | completed Binding: EncounterLocationStatus (required): The status of the location.
physicalType |  | 0..1 | CodeableConcept | The physical type of the location (usually the level in the location hierachy - bed room ward etc.) Binding: LocationType (example): Physical form of the location.
period |  | 0..1 | Period | Time period during which the patient was present at the location
serviceProvider | S | 0..1 | Reference(US Core Organization Profile) | The organization (facility) responsible for this encounter
partOf |  | 0..1 | Reference(Encounter) | Another Encounter this encounter is part of
Documentation for this format

#### Terminology Bindings

Path | Status | Usage | ValueSet | Version | Source
Encounter.language | Base | preferred | Common Languages | 📍4.0.1 | FHIR Std.
Encounter.status | Base | required | EncounterStatus | 📍4.0.1 | FHIR Std.
Encounter.statusHistory.​status | Base | required | EncounterStatus | 📍4.0.1 | FHIR Std.
Encounter.class | Base | extensible | ActEncounterCode | 📦3.0.0 | THO v7.1
Encounter.classHistory.​class | Base | extensible | ActEncounterCode | 📦3.0.0 | THO v7.1
Encounter.type | Base | extensible | Encounter Type | 📦20250510 | VSAC v0.24
Encounter.serviceType | Base | example | Service type | 📍4.0.1 | FHIR Std.
Encounter.priority | Base | example | ActPriority | 📦3.0.0 | THO v7.1
Encounter.subject.type | Base | extensible | ResourceType | 📍4.0.1 | FHIR Std.
Encounter.participant.​type | Base | extensible | Participant type | 📍4.0.1 | FHIR Std.
Encounter.reasonCode | Base | preferred | Encounter Reason Codes | 📍4.0.1 | FHIR Std.
Encounter.reasonReference.​type | Base | extensible | ResourceType | 📍4.0.1 | FHIR Std.
Encounter.diagnosis.​use | Base | preferred | DiagnosisRole | 📍4.0.1 | FHIR Std.
Encounter.hospitalization.​admitSource | Base | preferred | Admit source | 📍4.0.1 | FHIR Std.
Encounter.hospitalization.​reAdmission | Base | example | hl7VS-re-admissionIndicator | 📍3.0.0 | THO v7.1
Encounter.hospitalization.​dietPreference | Base | example | Diet | 📍4.0.1 | FHIR Std.
Encounter.hospitalization.​specialCourtesy | Base | preferred | Special courtesy | 📍4.0.1 | FHIR Std.
Encounter.hospitalization.​specialArrangement | Base | preferred | Special arrangements | 📍4.0.1 | FHIR Std.
Encounter.hospitalization.​dischargeDisposition | Base | preferred | USEncounterDischargeDisposition | 📍5.0.0 | THO v7.1
Encounter.location.status | Base | required | EncounterLocationStatus | 📍4.0.1 | FHIR Std.
Encounter.location.physicalType | Base | example | Location type | 📍4.0.1 | FHIR Std.

#### Constraints

Id | Grade | Path(s) | Description | Expression
dapl-enc-1 | error | Encounter.participant.period | All Period.start data elements should be truncated to a year only for de-identified resources. | `$this is Period and $this.start.exists() implies $this.start.toString().length() = 4`
dapl-enc-1a | error | Encounter.participant.period | All Period.start data elements should have valid year > 1900 | `$this is Period and Period.start.exists() implies $this.start.toString() >= '1900'`
dapl-enc-2 | error | Encounter.participant.period | All Period.emd data elements should be truncated to a year only for de-identified resources. | `$this is Period and $this.end.exists() implies $this.end.toString().length() = 4`
dapl-enc-3 | error | Encounter.period | All Period.start data elements should be truncated to a year only for de-identified resources. | `$this is Period and $this.start.exists() implies $this.start.toString().length() = 4`
dapl-enc-3a | error | Encounter.period | All Period.start data elements should have valid year > 1900 | `$this is Period and Period.start.exists() implies $this.start.toString() >= '1900'`
dapl-enc-4 | error | Encounter.period | All Period.emd data elements should be truncated to a year only for de-identified resources. | `$this is Period and $this.end.exists() implies $this.end.toString().length() = 4`
dom-2 | error | Encounter | If the resource is contained in another resource, it SHALL NOT contain nested Resources | `contained.contained.empty()`
dom-3 | error | Encounter | If the resource is contained in another resource, it SHALL be referred to from elsewhere in the resource or SHALL refer to the containing resource | `contained.where((('#'+id in (%resource.descendants().reference | %resource.descendants().as(canonical) | %resource.descendants().as(uri) | %resource.descendants().as(url))) or descendants().where(reference = '#').exists() or descendants().where(as(canonical) = '#').exists() or descendants().where(as(canonical) = '#').exists()).not()).trace('unmatched', id).empty()`
dom-4 | error | Encounter | If a resource is contained in another resource, it SHALL NOT have a meta.versionId or a meta.lastUpdated | `contained.meta.versionId.empty() and contained.meta.lastUpdated.empty()`
dom-5 | error | Encounter | If a resource is contained in another resource, it SHALL NOT have a security label | `contained.meta.security.empty()`
dom-6 | best practice | Encounter | A resource should have narrative for robust management | `text.`div`.exists()`
ele-1 | error | **ALL** elements | All FHIR elements must have a @value or children | `hasValue() or (children().count() > id.count())`
ext-1 | error | **ALL** extensions | Must have either extensions or value[x], not both | `extension.exists() != value.exists()`
uds-plus-enc-2a | error | Encounter.participant.period | All Period.end data elements should have valid year > 1900 | `$this is Period and Period.end.exists() implies $this.end.toString() >= '1900'`
uds-plus-enc-4a | error | Encounter.period | All Period.end data elements should have valid year > 1900 | `$this is Period and Period.end.exists() implies $this.end.toString() >= '1900'`

This structure is derived from Encounter

Summary

Mandatory: 5 elements(2 nested mandatory elements)
Must-Support: 22 elements
Prohibited: 4 elements

Structures

This structure refers to these other structures:

- DAPL De-identified Patient (http://hl7.org/fhir/us/dapl/StructureDefinition/dapl-deidentified-patient)
- US Core Practitioner Profile (http://hl7.org/fhir/us/core/StructureDefinition/us-core-practitioner)
- DAPL Diagnosis (http://hl7.org/fhir/us/dapl/StructureDefinition/dapl-diagnosis)
- DAPL De-identified Location (http://hl7.org/fhir/us/dapl/StructureDefinition/dapl-deidentified-location)
- US Core Organization Profile (http://hl7.org/fhir/us/core/StructureDefinition/us-core-organization)

Extensions

This structure refers to these extensions:

- http://hl7.org/fhir/us/dapl/StructureDefinition/dapl-age-extension

Maturity: 2

Other representations of profile: CSV, Excel, Schematron