---
type: "doc"
source: "source/modules-fragment.html"
---
**Level 1** Basic framework on which the specification is built

[Foundation](foundation-module)

[Base Documentation](documentation), [XML](xml), [JSON](json), [RDF (Turtle)](rdf), [Datatypes](datatypes), [Extensions](extensibility)

**Level 2** Supporting implementation and binding to external specifications

[Implementer Support](implsupport-module)

[Downloads](downloads),  
[Version Mgmt](versioning),  
[Use Cases](usecases)

[Security & Privacy](secpriv-module)

[Security](security),  
[Consent](consent),  
[Provenance](provenance),  
[AuditEvent](auditevent)

[Conformance](conformance-module)

[StructureDefinition](structuredefinition),  
[CapabilityStatement](capabilitystatement),  
[ImplementationGuide](implementationguide),  
[Profiling](profiling)

[Terminology](terminology-module)

[CodeSystem](codesystem),  
[ValueSet](valueset),  
[ConceptMap](conceptmap),  
[Terminology Svc](terminology-service)

[Exchange](exchange-module)

[REST API](http) + [Search](search)  
[Documents](documents)  
[Messaging](messaging)  
[Services](services)  
[Databases](storage)  
[Subscriptions](subscriptions)  

**Level 3** Linking to real-world concepts in the healthcare system

[Administration](administration-module)

[Patient](patient), [Practitioner](practitioner), [CareTeam](careteam), [Device](device), [Organization](organization), [Location](location), [Healthcare Service](healthcareservice)

**Level 4** Record-keeping and Data Exchange for the healthcare process

[Clinical](clinicalsummary-module)

[Allergy](allergyintolerance), [Problem](condition), [Procedure](procedure), [CarePlan](careplan)/[Goal](goal), [Family History](familymemberhistory), [RiskAssessment](riskassessment), etc.

[Medications](medications-module)

[Medication](medication),  
[Request](medicationrequest), [Dispense](medicationdispense),  
[Administration](medicationadministration),  
[Statement](medicationstatement),  
[Immunization](immunization), etc.

[Workflow](workflow-module)

[Introduction](workflow) + [Task](task), [Appointment](appointment), [Schedule](schedule), [ServiceRequest](servicerequest), [PlanDefinition](plandefinition), etc.

[Financial](financial-module)

[Claim](claim), [Account](account),  
[Invoice](invoice), [ChargeItem](https://build.fhir.org/ig/HL7/admin-incubator/StructureDefinition-ChargeItem.html),  
[Coverage](coverage) + Eligibility  
[Request](coverageeligibilityrequest) & [Response](coverageeligibilityresponse), [ExplanationOfBenefit](explanationofbenefit), etc.

[Diagnostics](diagnostics-module)

[Observation](observation), [DiagnosticReport](diagnosticreport), [DocumentReference](documentreference), [Specimen](specimen), [ImagingStudy](imagingstudy), etc.

[Devices](device-module)

[Device](device), [DeviceAlert](devicealert), [DeviceDefinition](devicedefinition), [DeviceMetric](devicemetric), [DeviceRequest](devicerequest), etc.

[Nutrition](nutrition-module)

[NutritionOrder](nutritionorder), [NutritionIntake](nutritionintake), [NutritionProduct](nutritionproduct)

[Biological Products](biologically-derived-product-module)

[BiologicallyDerivedProduct](biologicallyderivedproduct), [BiologicallyDerivedProductDispense](https://build.fhir.org/ig/HL7/oo-incubator/en/StructureDefinition-BiologicallyDerivedProductDispense.html)

**Level 5** Providing the ability to reason about the healthcare process

[Clinical Reasoning](clinicalreasoning-module)

[Library](library), [PlanDefinition](plandefinition) & [GuidanceResponse](guidanceresponse), [Measure](measure)/[MeasureReport](measurereport), etc.

[Medication Definition](medication-definition-module)

[Medicinal](medicinalproductdefinition), [Packaged](packagedproductdefinition) & [Administrable](administrableproductdefinition) product definitions, [Regulated Authorization](regulatedauthorization), etc.