GraphQL FHIR resources I-O

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
ImagingStudy	ImagingStudy(id: ID!) ImagingStudyList ImagingStudyConnection	identifier, patient, basedon, bodysite, dicom_class, encounter, endpoint, instance, interpreter, modality, performer, reason, referrer, series, started, status, subject	ImagingStudyCreate ImagingStudyUpdate ImagingStudyPatch ImagingStudyDelete
Immunization	Immunization(id: ID!) ImmunizationList ImmunizationConnection	date, identifier, patient, location, lot_number, manufacturer, performer, reaction, reaction_date, reason_code, reason_reference, series, status, status_reason, target_disease, vaccine_code, encounter	ImmunizationCreate ImmunizationUpdate ImmunizationPatch ImmunizationDelete
ImmunizationEvaluation	ImmunizationEvaluation(id: ID!) ImmunizationEvaluationList ImmunizationEvaluationConnection	date, dose_status, identifier, immunization_event, patient, status, target_disease	ImmunizationEvaluationCreate ImmunizationEvaluationUpdate ImmunizationEvaluationPatch ImmunizationEvaluationDelete
ImmunizationRecommendation	ImmunizationRecommendation(id: ID!) ImmunizationRecommendationList ImmunizationRecommendationConnection	date, identifier, information, patient, status, support, target_disease, vaccine_type	ImmunizationRecommendationCreate ImmunizationRecommendationUpdate ImmunizationRecommendationPatch ImmunizationRecommendationDelete
ImplementationGuide	ImplementationGuide(id: ID!) ImplementationGuideList ImplementationGuideConnection	context, context_quantity, context_type, date, description, jurisdiction, name, publisher, status, title, url, version, context_type_quantity, context_type_value, depends_on, experimental, global, resource	ImplementationGuideCreate ImplementationGuideUpdate ImplementationGuidePatch ImplementationGuideDelete
InsurancePlan	InsurancePlan(id: ID!) InsurancePlanList InsurancePlanConnection	address, address_city, address_country, address_postalcode, address_state, address_use, administered_by, endpoint, identifier, name, owned_by, phonetic, status, type	InsurancePlanCreate InsurancePlanUpdate InsurancePlanPatch InsurancePlanDelete
Invoice	Invoice(id: ID!) InvoiceList InvoiceConnection	account, date, identifier, issuer, participant, participant_role, patient, recipient, status, subject, totalgross, totalnet, type	InvoiceCreate InvoiceUpdate InvoicePatch InvoiceDelete
Library	Library(id: ID!) LibraryList LibraryConnection	composed_of, content_type, context, context_quantity, context_type, date, depends_on, derived_from, description, effective, identifier, jurisdiction, name, predecessor, publisher, status, successor, title, topic, type, url, version, context_type_quantity, context_type_value	LibraryCreate LibraryUpdate LibraryPatch LibraryDelete
Linkage	Linkage(id: ID!) LinkageList LinkageConnection	author, item, source	LinkageCreate LinkageUpdate LinkagePatch LinkageDelete
List	List(id: ID!) ListList ListConnection	code, date, identifier, patient, encounter, empty_reason, item, notes, source, status, subject, title	ListCreate ListUpdate ListPatch ListDelete
Location	Location(id: ID!) LocationList LocationConnection	address, address_city, address_country, address_postalcode, address_state, address_use, endpoint, identifier, name, near, operational_status, organization, partof, status, type, physical_type	LocationCreate LocationUpdate LocationPatch LocationDelete
Measure	Measure(id: ID!) MeasureList MeasureConnection	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	MeasureCreate MeasureUpdate MeasurePatch MeasureDelete
MeasureReport	MeasureReport(id: ID!) MeasureReportList MeasureReportConnection	date, evaluated_resource, identifier, measure, patient, period, reporter, status, subject	MeasureReportCreate MeasureReportUpdate MeasureReportPatch MeasureReportDelete
Media	Media(id: ID!) MediaList MediaConnection	based_on, created, device, encounter, identifier, modality, operator, patient, site, status, subject, type, view	MediaCreate MediaUpdate MediaPatch MediaDelete
Medication	Medication(id: ID!) MedicationList MedicationConnection	code, expiration_date, form, identifier, ingredient, ingredient_code, lot_number, manufacturer, status	MedicationCreate MedicationUpdate MedicationPatch MedicationDelete
MedicationAdministration	MedicationAdministration(id: ID!) MedicationAdministrationList MedicationAdministrationConnection	code, identifier, patient, context, device, effective_time, medication, performer, reason_given, reason_not_given, request, status, subject	MedicationAdministrationCreate MedicationAdministrationUpdate MedicationAdministrationPatch MedicationAdministrationDelete
MedicationDispense	MedicationDispense(id: ID!) MedicationDispenseList MedicationDispenseConnection	code, identifier, patient, medication, status, context, destination, performer, prescription, receiver, responsibleparty, subject, type, whenhandedover, whenprepared	MedicationDispenseCreate MedicationDispenseUpdate MedicationDispensePatch MedicationDispenseDelete
MedicationKnowledge	MedicationKnowledge(id: ID!) MedicationKnowledgeList MedicationKnowledgeConnection	classification, classification_type, code, doseform, ingredient, ingredient_code, manufacturer, monitoring_program_name, monitoring_program_type, monograph, monograph_type, source_cost, status	MedicationKnowledgeCreate MedicationKnowledgeUpdate MedicationKnowledgePatch MedicationKnowledgeDelete
MedicationRequest	MedicationRequest(id: ID!) MedicationRequestList MedicationRequestConnection	code, identifier, patient, medication, status, authoredon, category, date, encounter, intended_dispenser, intended_performer, intended_performertype, intent, priority, requester, subject, priority_order	MedicationRequestCreate MedicationRequestUpdate MedicationRequestPatch MedicationRequestDelete
MedicationStatement	MedicationStatement(id: ID!) MedicationStatementList MedicationStatementConnection	code, identifier, patient, medication, status, category, context, effective, part_of, source, subject	MedicationStatementCreate MedicationStatementUpdate MedicationStatementPatch MedicationStatementDelete
MedicinalProduct	MedicinalProduct(id: ID!) MedicinalProductList MedicinalProductConnection	identifier, name, name_language	MedicinalProductCreate MedicinalProductUpdate MedicinalProductPatch MedicinalProductDelete
MedicinalProductAuthorization	MedicinalProductAuthorization(id: ID!) MedicinalProductAuthorizationList MedicinalProductAuthorizationConnection	country, holder, identifier, status, subject	MedicinalProductAuthorizationCreate MedicinalProductAuthorizationUpdate MedicinalProductAuthorizationPatch MedicinalProductAuthorizationDelete
MedicinalProductContraindication	MedicinalProductContraindication(id: ID!) MedicinalProductContraindicationList MedicinalProductContraindicationConnection	subject	MedicinalProductContraindicationCreate MedicinalProductContraindicationUpdate MedicinalProductContraindicationPatch MedicinalProductContraindicationDelete
MedicinalProductIndication	MedicinalProductIndication(id: ID!) MedicinalProductIndicationList MedicinalProductIndicationConnection	subject	MedicinalProductIndicationCreate MedicinalProductIndicationUpdate MedicinalProductIndicationPatch MedicinalProductIndicationDelete
MedicinalProductIngredient	MedicinalProductIngredient(id: ID!) MedicinalProductIngredientList MedicinalProductIngredientConnection	—	MedicinalProductIngredientCreate MedicinalProductIngredientUpdate MedicinalProductIngredientPatch MedicinalProductIngredientDelete
MedicinalProductInteraction	MedicinalProductInteraction(id: ID!) MedicinalProductInteractionList MedicinalProductInteractionConnection	subject	MedicinalProductInteractionCreate MedicinalProductInteractionUpdate MedicinalProductInteractionPatch MedicinalProductInteractionDelete
MedicinalProductManufactured	MedicinalProductManufactured(id: ID!) MedicinalProductManufacturedList MedicinalProductManufacturedConnection	—	MedicinalProductManufacturedCreate MedicinalProductManufacturedUpdate MedicinalProductManufacturedPatch MedicinalProductManufacturedDelete
MedicinalProductPackaged	MedicinalProductPackaged(id: ID!) MedicinalProductPackagedList MedicinalProductPackagedConnection	identifier, subject	MedicinalProductPackagedCreate MedicinalProductPackagedUpdate MedicinalProductPackagedPatch MedicinalProductPackagedDelete
MedicinalProductPharmaceutical	MedicinalProductPharmaceutical(id: ID!) MedicinalProductPharmaceuticalList MedicinalProductPharmaceuticalConnection	identifier, route, target_species	MedicinalProductPharmaceuticalCreate MedicinalProductPharmaceuticalUpdate MedicinalProductPharmaceuticalPatch MedicinalProductPharmaceuticalDelete
MedicinalProductUndesirableEffect	MedicinalProductUndesirableEffect(id: ID!) MedicinalProductUndesirableEffectList MedicinalProductUndesirableEffectConnection	subject	MedicinalProductUndesirableEffectCreate MedicinalProductUndesirableEffectUpdate MedicinalProductUndesirableEffectPatch MedicinalProductUndesirableEffectDelete
MessageDefinition	MessageDefinition(id: ID!) MessageDefinitionList MessageDefinitionConnection	context, context_quantity, context_type, date, description, jurisdiction, name, publisher, status, title, url, version, context_type_quantity, context_type_value, identifier, category, event, focus, parent	MessageDefinitionCreate MessageDefinitionUpdate MessageDefinitionPatch MessageDefinitionDelete
MessageHeader	MessageHeader(id: ID!) MessageHeaderList MessageHeaderConnection	author, code, destination, destination_uri, enterer, event, focus, receiver, response_id, responsible, sender, source, source_uri, target	MessageHeaderCreate MessageHeaderUpdate MessageHeaderPatch MessageHeaderDelete
MolecularSequence	MolecularSequence(id: ID!) MolecularSequenceList MolecularSequenceConnection	chromosome, identifier, patient, referenceseqid, type, variant_end, variant_start, window_end, window_start, chromosome_variant_coordinate, chromosome_window_coordinate, referenceseqid_variant_coordinate, referenceseqid_window_coordinate	MolecularSequenceCreate MolecularSequenceUpdate MolecularSequencePatch MolecularSequenceDelete
NamingSystem	NamingSystem(id: ID!) NamingSystemList NamingSystemConnection	context, context_quantity, context_type, date, description, jurisdiction, name, publisher, status, context_type_quantity, context_type_value, contact, id_type, kind, period, responsible, telecom, type, value	NamingSystemCreate NamingSystemUpdate NamingSystemPatch NamingSystemDelete
NutritionOrder	NutritionOrder(id: ID!) NutritionOrderList NutritionOrderConnection	identifier, patient, encounter, additive, datetime, formula, instantiates_canonical, instantiates_uri, oraldiet, provider, status, supplement	NutritionOrderCreate NutritionOrderUpdate NutritionOrderPatch NutritionOrderDelete
Observation	Observation(id: ID!) ObservationList ObservationConnection	code, date, identifier, patient, encounter, based_on, category, combo_code, combo_data_absent_reason, combo_value_concept, combo_value_quantity, component_code, component_data_absent_reason, component_value_concept, component_value_quantity, data_absent_reason, derived_from, device, focus, has_member, method, part_of, performer, specimen, status, subject, value_concept, value_date, value_quantity, value_string, code_value_concept, code_value_date, code_value_quantity, code_value_string, combo_code_value_concept, combo_code_value_quantity, component_code_value_concept, component_code_value_quantity	ObservationCreate ObservationUpdate ObservationPatch ObservationDelete
ObservationDefinition	ObservationDefinition(id: ID!) ObservationDefinitionList ObservationDefinitionConnection	code, publisher	ObservationDefinitionCreate ObservationDefinitionUpdate ObservationDefinitionPatch ObservationDefinitionDelete
OperationDefinition	OperationDefinition(id: ID!) OperationDefinitionList OperationDefinitionConnection	context, context_quantity, context_type, date, description, jurisdiction, name, publisher, status, title, url, version, context_type_quantity, context_type_value, base, code, input_profile, instance, kind, output_profile, system, type	OperationDefinitionCreate OperationDefinitionUpdate OperationDefinitionPatch OperationDefinitionDelete
OperationOutcome	OperationOutcome(id: ID!) OperationOutcomeList OperationOutcomeConnection	—	OperationOutcomeCreate OperationOutcomeUpdate OperationOutcomePatch OperationOutcomeDelete
Organization	Organization(id: ID!) OrganizationList OrganizationConnection	active, address, address_city, address_country, address_postalcode, address_state, address_use, endpoint, identifier, name, partof, phonetic, type	OrganizationCreate OrganizationUpdate OrganizationPatch OrganizationDelete
OrganizationAffiliation	OrganizationAffiliation(id: ID!) OrganizationAffiliationList OrganizationAffiliationConnection	active, date, email, endpoint, identifier, location, network, participating_organization, phone, primary_organization, role, service, specialty, telecom	OrganizationAffiliationCreate OrganizationAffiliationUpdate OrganizationAffiliationPatch OrganizationAffiliationDelete