Current Build Code System

Vocabulary Work Group Maturity Level: 5Normative Use Context: Any

Normative Candidate Note: This page is candidate normative content for R4 in the Conformance Package. Once normative, it will lose it's Maturity Level, and breaking changes will no longer be made.

This is a code system defined by the FHIR project.


Defining URL:

The type of a property value

Committee:Vocabulary Work Group
OID:2.16.840.1.113883.4.642.1.781 (for OID based terminology systems)
Source ResourceXML / JSON

This Code system is used in the following value sets:

The type of a property value

This code system defines the following codes:

code code (internal reference)The property value is a code that identifies a concept defined in the code system
Coding Coding (external reference)The property value is a code defined in an external code system. This may be used for translations, but is not the intent
string stringThe property value is a string
integer integerThe property value is a string (often used to assign ranking values to concepts for supporting score assessments)
boolean booleanThe property value is a boolean true | false
dateTime dateTimeThe property is a date or a date + time
decimal decimalThe property value is a decimal number


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

Explanation of the columns that may appear on this page:

LvlA few code lists that FHIR defines are hierarchical - each code is assigned a level. See Code System for further information.
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). If the code is in italics, this indicates that the code is not selectable ('Abstract')
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