FHIR R4 data types

The building blocks of every resource. Primitive types hold a single value (string, dateTime, code); complex types group elements (HumanName, CodeableConcept, Reference).

Primitive types

base64BinaryPrimitive Type base64BinarybooleanPrimitive Type booleancanonicalPrimitive Type canonicalcodePrimitive Type codedatePrimitive Type datedateTimePrimitive Type dateTimedecimalPrimitive Type decimalidPrimitive Type idinstantPrimitive Type instantintegerPrimitive Type integermarkdownPrimitive Type markdownoidPrimitive Type oidpositiveIntPrimitive Type positiveIntstringPrimitive Type stringtimePrimitive Type timeunsignedIntPrimitive Type unsignedInturiPrimitive Type uriurlPrimitive Type urluuidPrimitive Type uuidxhtmlPrimitive Type xhtml

Complex types

AddressAn address expressed using postal conventions (as opposed to GPS or other location definition formats)AgeA duration of time during which an organism (or a process) has existedAnnotationText node with attributionAttachmentContent in a format defined elsewhereBackboneElementBase for elements defined inside a resourceCodeableConceptConcept - reference to a terminology or just textCodingA reference to a code defined by a terminology systemContactDetailContact informationContactPointDetails of a Technology mediated contact point (phone, fax, email, etc.)ContributorContributor informationCountA measured or measurable amountDataRequirementDescribes a required data itemDistanceA length - a value with a unit that is a physical distanceDosageHow the medication is/was taken or should be takenDurationA length of timeElementBase for all elementsElementDefinitionDefinition of an element in a resource or extensionExpressionAn expression that can be used to generate a valueExtensionOptional Extensions ElementHumanNameName of a human - parts and usageIdentifierAn identifier intended for computationMarketingStatusThe marketing status describes the date when a medicinal product is actually put on the market or the date as of which it is no longer availableMetaMetadata about a resourceMoneyAn amount of economic utility in some recognized currencyNarrativeHuman-readable summary of the resource (essential clinical and business information)ParameterDefinitionDefinition of a parameter to a modulePeriodTime range defined by start and end date/timePopulationA definition of a set of people that apply to some clinically related context, for example people contraindicated for a certain medicationProdCharacteristicThe marketing status describes the date when a medicinal product is actually put on the market or the date as of which it is no longer availableProductShelfLifeThe shelf-life and storage information for a medicinal product item or container can be described using this classQuantityA measured or measurable amountRangeSet of values bounded by low and highRatioA ratio of two Quantity values - a numerator and a denominatorReferenceA reference from one resource to anotherRelatedArtifactRelated artifacts for a knowledge resourceSampledDataA series of measurements taken by a deviceSignatureA Signature - XML DigSig, JWS, Graphical image of signature, etc.SubstanceAmountChemical substances are a single substance type whose primary defining element is the molecular structure. Chemical substances shall be defined on the basis of their complete covalent molecular structure; the presence of a salt (counter-ion) and/or solvates (water, alcohols) is also captured. Purity, grade, physical form or particle size are not taken into account in the definition of a chemical substance or in the assignment of a Substance IDTimingA timing schedule that specifies an event that may occur multiple timesTriggerDefinitionDefines an expected trigger for a moduleUsageContextDescribes the context of use for a conformance or knowledge resource