> ## 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. # RelatedPerson > Information about a person that is involved in the care for a patient, but who is not the target of healthcare, nor has a formal responsibility in the care process. ## Properties | Name | Required | Type | Description | | ------------------- | -------- | ------------------------------------------------------------------ | -------------------------------------------------------------------------------------- | | identifier | No | [Identifier](/medical-api/fhir/data-types/identifier)\[] | A human identifier for this person | | active | No | boolean | Whether this related person's record is in active use | | patient | Yes | Reference\<[Patient](/medical-api/fhir/resources/patient)> | The patient this person is related to | | relationship | No | [CodeableConcept](/medical-api/fhir/data-types/codeableconcept)\[] | The nature of the relationship | | name | No | [HumanName](/medical-api/fhir/data-types/humanname)\[] | A name associated with the person | | telecom | No | [ContactPoint](/medical-api/fhir/data-types/contactpoint)\[] | A contact detail for the person | | gender | No | code | male / female / other / unknown | | birthDate | No | date | The date on which the related person was born | | address | No | [Address](/medical-api/fhir/data-types/address)\[] | Address where the related person can be contacted or visited | | photo | No | [Attachment](/medical-api/fhir/data-types/attachment)\[] | Image of the person | | period | No | [Period](/medical-api/fhir/data-types/period) | Period of time that this relationship is considered valid | | communication | No | RelatedPersonCommunication | A language which may be used to communicate with about the patient's health | | - 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 | | - language | Yes | [CodeableConcept](/medical-api/fhir/data-types/codeableconcept) | The language which can be used to communicate with the patient about his or her health | | - preferred | No | boolean | Language preference indicator | ## Search Parameters | Name | Type | Description | Expression | | ------------------ | --------- | ------------------------------------------------------------------------------------------------------------------------------------------------------- | -------------------------------- | | address | string | A server defined search that may match any of the string fields in the Address, including line, city, district, state, country, postalCode, and/or text | RelatedPerson.address | | address-city | string | A city specified in an address | RelatedPerson.address.city | | address-country | string | A country specified in an address | RelatedPerson.address.country | | address-postalcode | string | A postal code specified in an address | RelatedPerson.address.postalCode | | address-state | string | A state specified in an address | RelatedPerson.address.state | | address-use | token | A use code specified in an address | RelatedPerson.address.use | | birthdate | date | The Related Person's date of birth | RelatedPerson.birthDate | | email | token | A value in an email contact | RelatedPerson.telecom | | gender | token | Gender of the related person | RelatedPerson.gender | | phone | token | A value in a phone contact | RelatedPerson.telecom | | phonetic | string | A portion of name using some kind of phonetic matching algorithm | RelatedPerson.name | | telecom | token | The value in any kind of contact | RelatedPerson.telecom | | active | token | Indicates if the related person record is active | RelatedPerson.active | | identifier | token | An Identifier of the RelatedPerson | RelatedPerson.identifier | | name | string | A server defined search that may match any of the string fields in the HumanName, including family, give, prefix, suffix, suffix, and/or text | RelatedPerson.name | | patient | reference | The patient this related person is related to | RelatedPerson.patient | | relationship | token | The relationship between the patient and the relatedperson | RelatedPerson.relationship | ## 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 [RelatedPerson](https://www.hl7.org/fhir/StructureDefinition/RelatedPerson).