GraphQL FHIR resources D-H

This page records root fields found by introspecting the Ovok sandbox on 8 October 2026. Every listed type links to its canonical FHIR R4 resource page, which remains the source for resource elements, parameter meanings, and REST interactions. See queries and pagination for common arguments and their behavior, and mutations for shared write signatures.

The search column lists only resource-specific arguments. The schema declares these as GraphQL String arguments. A field in this snapshot is not a guarantee that every environment or AccessPolicy permits the operation.

FHIR resource	Read, list, connection fields	Resource-specific list arguments	Mutations
DetectedIssue	DetectedIssue(id: ID!) DetectedIssueList DetectedIssueConnection	identifier, patient, author, code, identified, implicated, status	DetectedIssueCreate DetectedIssueUpdate DetectedIssuePatch DetectedIssueDelete
Device	Device(id: ID!) DeviceList DeviceConnection	device_name, identifier, location, manufacturer, model, organization, patient, status, type, udi_carrier, udi_di, url	DeviceCreate DeviceUpdate DevicePatch DeviceDelete
DeviceDefinition	DeviceDefinition(id: ID!) DeviceDefinitionList DeviceDefinitionConnection	identifier, parent, type, classification	DeviceDefinitionCreate DeviceDefinitionUpdate DeviceDefinitionPatch DeviceDefinitionDelete
DeviceMetric	DeviceMetric(id: ID!) DeviceMetricList DeviceMetricConnection	category, identifier, parent, source, type	DeviceMetricCreate DeviceMetricUpdate DeviceMetricPatch DeviceMetricDelete
DeviceRequest	DeviceRequest(id: ID!) DeviceRequestList DeviceRequestConnection	code, identifier, patient, encounter, authored_on, based_on, device, event_date, group_identifier, instantiates_canonical, instantiates_uri, insurance, intent, performer, prior_request, requester, status, subject	DeviceRequestCreate DeviceRequestUpdate DeviceRequestPatch DeviceRequestDelete
DeviceUseStatement	DeviceUseStatement(id: ID!) DeviceUseStatementList DeviceUseStatementConnection	patient, device, identifier, subject	DeviceUseStatementCreate DeviceUseStatementUpdate DeviceUseStatementPatch DeviceUseStatementDelete
DiagnosticReport	DiagnosticReport(id: ID!) DiagnosticReportList DiagnosticReportConnection	code, date, identifier, patient, encounter, based_on, category, conclusion, issued, media, performer, result, results_interpreter, specimen, status, subject, study	DiagnosticReportCreate DiagnosticReportUpdate DiagnosticReportPatch DiagnosticReportDelete
DocumentManifest	DocumentManifest(id: ID!) DocumentManifestList DocumentManifestConnection	identifier, patient, type, author, created, description, item, recipient, related_id, related_ref, source, status, subject	DocumentManifestCreate DocumentManifestUpdate DocumentManifestPatch DocumentManifestDelete
DocumentReference	DocumentReference(id: ID!) DocumentReferenceList DocumentReferenceConnection	identifier, patient, type, encounter, authenticator, author, category, contenttype, custodian, date, description, event, facility, format, language, location, period, related, relatesto, relation, security_label, setting, status, subject, relationship	DocumentReferenceCreate DocumentReferenceUpdate DocumentReferencePatch DocumentReferenceDelete
EffectEvidenceSynthesis	EffectEvidenceSynthesis(id: ID!) EffectEvidenceSynthesisList EffectEvidenceSynthesisConnection	context, context_quantity, context_type, date, description, effective, identifier, jurisdiction, name, publisher, status, title, url, version, context_type_quantity, context_type_value	EffectEvidenceSynthesisCreate EffectEvidenceSynthesisUpdate EffectEvidenceSynthesisPatch EffectEvidenceSynthesisDelete
Encounter	Encounter(id: ID!) EncounterList EncounterConnection	date, identifier, patient, type, account, appointment, based_on, class, diagnosis, episode_of_care, length, location, location_period, part_of, participant, participant_type, practitioner, reason_code, reason_reference, service_provider, special_arrangement, status, subject, discharge_disposition	EncounterCreate EncounterUpdate EncounterPatch EncounterDelete
Endpoint	Endpoint(id: ID!) EndpointList EndpointConnection	connection_type, identifier, name, organization, payload_type, status	EndpointCreate EndpointUpdate EndpointPatch EndpointDelete
EnrollmentRequest	EnrollmentRequest(id: ID!) EnrollmentRequestList EnrollmentRequestConnection	identifier, patient, status, subject	EnrollmentRequestCreate EnrollmentRequestUpdate EnrollmentRequestPatch EnrollmentRequestDelete
EnrollmentResponse	EnrollmentResponse(id: ID!) EnrollmentResponseList EnrollmentResponseConnection	identifier, request, status	EnrollmentResponseCreate EnrollmentResponseUpdate EnrollmentResponsePatch EnrollmentResponseDelete
EpisodeOfCare	EpisodeOfCare(id: ID!) EpisodeOfCareList EpisodeOfCareConnection	date, identifier, patient, type, care_manager, condition, incoming_referral, organization, status	EpisodeOfCareCreate EpisodeOfCareUpdate EpisodeOfCarePatch EpisodeOfCareDelete
EventDefinition	EventDefinition(id: ID!) EventDefinitionList EventDefinitionConnection	composed_of, context, context_quantity, context_type, date, depends_on, derived_from, description, effective, identifier, jurisdiction, name, predecessor, publisher, status, successor, title, topic, url, version, context_type_quantity, context_type_value	EventDefinitionCreate EventDefinitionUpdate EventDefinitionPatch EventDefinitionDelete
Evidence	Evidence(id: ID!) EvidenceList EvidenceConnection	composed_of, context, context_quantity, context_type, date, depends_on, derived_from, description, effective, identifier, jurisdiction, name, predecessor, publisher, status, successor, title, topic, url, version, context_type_quantity, context_type_value	EvidenceCreate EvidenceUpdate EvidencePatch EvidenceDelete
EvidenceVariable	EvidenceVariable(id: ID!) EvidenceVariableList EvidenceVariableConnection	composed_of, context, context_quantity, context_type, date, depends_on, derived_from, description, effective, identifier, jurisdiction, name, predecessor, publisher, status, successor, title, topic, url, version, context_type_quantity, context_type_value, characteristic_type	EvidenceVariableCreate EvidenceVariableUpdate EvidenceVariablePatch EvidenceVariableDelete
ExampleScenario	ExampleScenario(id: ID!) ExampleScenarioList ExampleScenarioConnection	context, context_quantity, context_type, date, identifier, jurisdiction, name, publisher, status, url, version, context_type_quantity, context_type_value	ExampleScenarioCreate ExampleScenarioUpdate ExampleScenarioPatch ExampleScenarioDelete
ExplanationOfBenefit	ExplanationOfBenefit(id: ID!) ExplanationOfBenefitList ExplanationOfBenefitConnection	care_team, claim, coverage, created, detail_udi, disposition, encounter, enterer, facility, identifier, item_udi, patient, payee, procedure_udi, provider, status, subdetail_udi	ExplanationOfBenefitCreate ExplanationOfBenefitUpdate ExplanationOfBenefitPatch ExplanationOfBenefitDelete
FamilyMemberHistory	FamilyMemberHistory(id: ID!) FamilyMemberHistoryList FamilyMemberHistoryConnection	code, date, identifier, patient, instantiates_canonical, instantiates_uri, relationship, sex, status	FamilyMemberHistoryCreate FamilyMemberHistoryUpdate FamilyMemberHistoryPatch FamilyMemberHistoryDelete
Flag	Flag(id: ID!) FlagList FlagConnection	date, patient, encounter, author, identifier, subject, category, status	FlagCreate FlagUpdate FlagPatch FlagDelete
Goal	Goal(id: ID!) GoalList GoalConnection	identifier, patient, achievement_status, category, lifecycle_status, start_date, subject, target_date, description	GoalCreate GoalUpdate GoalPatch GoalDelete
GraphDefinition	GraphDefinition(id: ID!) GraphDefinitionList GraphDefinitionConnection	context, context_quantity, context_type, date, description, jurisdiction, name, publisher, status, url, version, context_type_quantity, context_type_value, start	GraphDefinitionCreate GraphDefinitionUpdate GraphDefinitionPatch GraphDefinitionDelete
Group	Group(id: ID!) GroupList GroupConnection	actual, characteristic, code, exclude, identifier, managing_entity, member, type, value, characteristic_value, name, characteristic_range, characteristic_reference	GroupCreate GroupUpdate GroupPatch GroupDelete
GuidanceResponse	GuidanceResponse(id: ID!) GuidanceResponseList GuidanceResponseConnection	identifier, patient, request, subject	GuidanceResponseCreate GuidanceResponseUpdate GuidanceResponsePatch GuidanceResponseDelete
HealthcareService	HealthcareService(id: ID!) HealthcareServiceList HealthcareServiceConnection	active, characteristic, coverage_area, endpoint, identifier, location, name, organization, program, service_category, service_type, specialty	HealthcareServiceCreate HealthcareServiceUpdate HealthcareServicePatch HealthcareServiceDelete