This page is part of the FHIR Specification (v0.0.82: DSTU 1). The current version which supercedes this version is 5.0.0. For a full list of available versions, see the Directory of published versions

1.14.2.1.3 Value Set for codes in http://hl7.org/fhir/data-types

This is a value set defined by the FHIR project.

Summary

Code System URL:http://hl7.org/fhir/data-types
Value Set URL:http://hl7.org/fhir/vs/data-types
Definition:The type of an element - one of the FHIR data types

Formal value Set definition : XML or JSON.

This value set defines its own codes:

1.14.2.1.3.1 DataType

The type of an element - one of the FHIR data types

This value set defines its own terms in the system http://hl7.org/fhir/data-types

CodeDisplayDefinition
Address There is a variety of postal address formats defined around the world. This format defines a superset that is the basis for all addresses around the world.
Age There SHALL be a code if there is a value and it SHALL be an expression of time. If system is present, it SHALL be UCUM. If value is present, it SHALL be positive.
Attachment For referring to data content defined in other formats.
CodeableConcept A concept that may be defined by a formal reference to a terminology or ontology or may be provided by text.
Coding A reference to a code defined by a terminology system.
Contact All kinds of technology mediated contact details for a person or organization, including telephone, email, etc.
Count There SHALL be a code with a value of "1" if there is a value and it SHALL be an expression of length. If system is present, it SHALL be UCUM. If present, the value SHALL a whole number.
Distance There SHALL be a code if there is a value and it SHALL be an expression of length. If system is present, it SHALL be UCUM.
Duration There SHALL be a code if there is a value and it SHALL be an expression of time. If system is present, it SHALL be UCUM.
Extension Optional Extensions Element - found in all resources.
HumanName A human's name with the ability to identify parts and usage.
Identifier A technical identifier - identifies some entity uniquely and unambiguously.
Money There SHALL be a code if there is a value and it SHALL be an expression of currency. If system is present, it SHALL be ISO 4217 (system = "urn:std:iso:4217" - currency).
Narrative A human-readable formatted text, including images.
Period A time period defined by a start and end date and optionally time.
Quantity A measured amount (or an amount that can potentially be measured). Note that measured amounts include amounts that are not precisely quantified, including amounts involving arbitrary units and floating currencies.
Range A set of ordered Quantities defined by a low and high limit.
Ratio A relationship of two Quantity values - expressed as a numerator and a denominator.
ResourceReference A reference from one resource to another.
SampledData A series of measurements taken by a device, with upper and lower limits. There may be more than one dimension in the data.
Schedule Specifies an event that may occur multiple times. Schedules are used for to reord when things are expected or requested to occur.
base64Binary A stream of bytes
boolean Value of "true" or "false"
code A string which has at least one character and no leading or trailing whitespace and where there is no whitespace other than single spaces in the contents
date A date, or partial date (e.g. just year or year + month). There is no time zone. The format is a union of the schema types gYear, gYearMonth and date. Dates SHALL be valid dates.
dateTime A date, date-time or partial date (e.g. just year or year + month). If hours and minutes are specified, a time zone SHALL be populated. The format is a union of the schema types gYear, gYearMonth, date and dateTime. Seconds may be provided but may also be ignored. Dates SHALL be valid dates.
decimal A rational number with implicit precision
id A whole number in the range 0 to 2^64-1, optionally represented in hex, a uuid, an oid or any other combination of lower-case letters a-z, numerals, "-" and ".", with a length limit of 36 characters
instant An instant in time - known at least to the second
integer A whole number
oid An oid represented as a URI
string A sequence of Unicode characters
uri String of characters used to identify a name or a resource
uuid A UUID, represented as a URI

These codes are used in the following places:

OIDs

Code System URL:3
Value Set URL:2.16.840.1.113883.4.642.2.3
Note: these OIDs are not used in FHIR, but may be used in v3, or OID based terminology systems

See the full registry of value sets defined as part of FHIR.

Explanation of the columns that may appear on this page:

LevelA few code lists that FHIR defines are hierarchical - each code is assigned a level. In this scheme, some codes are under other codes, and imply that the code they are under also applies
SourceThe source of the definition of the code (when the value set draws in codes defined elsewhere)
CodeThe code (used as the code in the resource instance)
DisplayThe display (used in the display element of a Coding). If there is no display, implementers should not simply display the code, but map the concept into their application
DefinitionAn explanation of the meaning of the concept
CommentsAdditional notes about how to use the code

In addition, this page will include mappings to HL7 v2 or HL7 v3 code where these have been defined.

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