> ## Documentation Index > Fetch the complete documentation index at: https://docs.metriport.com/llms.txt > Use this file to discover all available pages before exploring further. # QuestionnaireResponse > A structured set of questions and their answers. The questions are ordered and grouped into coherent subsets, corresponding to the structure of the grouping of the questionnaire being responded to. ## Properties | Name | Required | Type | Description | | ------------------- | -------- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | -------------------------------------------------------------- | | identifier | No | [Identifier](/medical-api/fhir/data-types/identifier) | Unique id for this set of answers | | basedOn | No | Reference\<[CarePlan](/medical-api/fhir/resources/careplan) / [ServiceRequest](/medical-api/fhir/resources/servicerequest)>\[] | Request fulfilled by this QuestionnaireResponse | | partOf | No | Reference\<[Observation](/medical-api/fhir/resources/observation) / [Procedure](/medical-api/fhir/resources/procedure)>\[] | Part of this action | | questionnaire | No | canonical | Form being answered | | status | Yes | code | in-progress / completed / amended / entered-in-error / stopped | | subject | No | Reference\ | The subject of the questions | | encounter | No | Reference\<[Encounter](/medical-api/fhir/resources/encounter)> | Encounter created as part of | | authored | No | dateTime | Date the answers were gathered | | author | No | Reference\<[Device](/medical-api/fhir/resources/device) / [Practitioner](/medical-api/fhir/resources/practitioner) / [PractitionerRole](/medical-api/fhir/resources/practitionerrole) / [Patient](/medical-api/fhir/resources/patient) / [RelatedPerson](/medical-api/fhir/resources/relatedperson) / [Organization](/medical-api/fhir/resources/organization)> | Person who received and recorded the answers | | source | No | Reference\<[Patient](/medical-api/fhir/resources/patient) / [Practitioner](/medical-api/fhir/resources/practitioner) / [PractitionerRole](/medical-api/fhir/resources/practitionerrole) / [RelatedPerson](/medical-api/fhir/resources/relatedperson)> | The person who answered the questions | | item | No | QuestionnaireResponseItem | Groups and questions | | - id | No | string | Unique id for inter-element referencing | | - extension | No | [Extension](/medical-api/fhir/data-types/extension)\[] | Additional content defined by implementations | | - modifierExtension | No | [Extension](/medical-api/fhir/data-types/extension)\[] | Extensions that cannot be ignored even if unrecognized | | - linkId | Yes | string | Pointer to specific item from Questionnaire | | - definition | No | uri | ElementDefinition - details for the item | | - text | No | string | Name for group or question text | | - answer | No | QuestionnaireResponseItemAnswer | The response(s) to the question | | - id | No | string | Unique id for inter-element referencing | | - extension | No | [Extension](/medical-api/fhir/data-types/extension)\[] | Additional content defined by implementations | | - modifierExtension | No | [Extension](/medical-api/fhir/data-types/extension)\[] | Extensions that cannot be ignored even if unrecognized | | - value\[x] | No | boolean, decimal, integer, date, dateTime, time, string, uri, [Attachment](/medical-api/fhir/data-types/attachment), [Coding](/medical-api/fhir/data-types/coding), [Quantity](/medical-api/fhir/data-types/quantity), Reference\ | Single-valued answer to the question | | - item | No | \[] | Nested groups and questions | | - item | No | \[] | Nested questionnaire response items | ## Search Parameters | Name | Type | Description | Expression | | ------------- | --------- | ------------------------------------------------------------------------------- | ----------------------------------- | | author | reference | The author of the questionnaire response | QuestionnaireResponse.author | | authored | date | When the questionnaire response was last changed | QuestionnaireResponse.authored | | based-on | reference | Plan/proposal/order fulfilled by this questionnaire response | QuestionnaireResponse.basedOn | | encounter | reference | Encounter associated with the questionnaire response | QuestionnaireResponse.encounter | | identifier | token | The unique identifier for the questionnaire response | QuestionnaireResponse.identifier | | part-of | reference | Procedure or observation this questionnaire response was performed as a part of | QuestionnaireResponse.partOf | | patient | reference | The patient that is the subject of the questionnaire response | QuestionnaireResponse.subject | | questionnaire | reference | The questionnaire the answers are provided for | QuestionnaireResponse.questionnaire | | source | reference | The individual providing the information reflected in the questionnaire respose | QuestionnaireResponse.source | | status | token | The status of the questionnaire response | QuestionnaireResponse.status | | subject | reference | The subject of the questionnaire response | QuestionnaireResponse.subject | ## Inherited Properties | Name | Required | Type | Description | | ----------------- | -------- | ------------------------------------------------------ | ------------------------------------------------------ | | id | No | string | Logical id of this artifact | | meta | No | [Meta](/medical-api/fhir/data-types/meta) | Metadata about the resource | | implicitRules | No | uri | A set of rules under which this content was created | | language | No | code | Language of the resource content | | text | No | [Narrative](/medical-api/fhir/data-types/narrative) | Text summary of the resource, for human interpretation | | contained | No | Resource\[] | Contained, inline Resources | | extension | No | [Extension](/medical-api/fhir/data-types/extension)\[] | Additional content defined by implementations | | modifierExtension | No | [Extension](/medical-api/fhir/data-types/extension)\[] | Extensions that cannot be ignored | To view the FHIR specification for this resource, see [QuestionnaireResponse](https://www.hl7.org/fhir/StructureDefinition/QuestionnaireResponse).