Release 4 R6 Ballot (1st Full Ballot)

This page is part of the FHIR Specification (v4.0.1: R4 - Mixed Normative and STU v6.0.0-ballot4: Release 6 Ballot (1st Full Ballot) (see Ballot Notes ) in it's permanent home (it will always be available at this URL). ). The current version which supercedes this version is 5.0.0 . For a full list of available versions, see the Directory of published versions for published versions icon . Page versions: R5 R4B R4 R3

Using Codes Code Systems Value Sets Concept Maps Identifier Systems

4.3.14.223 4.3.2.240 Code System CodeSystem http://hl7.org/fhir/map-transform

  Maturity Level : 2
Responsible Owner: FHIR Infrastructure icon Work Group Trial Use Normative Use Context : Any Country: World
This is a code system defined by the FHIR project. Summary Committee:
Official URL : Title: http://hl7.org/fhir/map-transform StructureMapTransform Definition: How data is copied/created. Version : 6.0.0-ballot4
active as of 2021-01-05 FHIR Infrastructure Computable Name : StructureMapTransform Work Group
OID: 2.16.840.1.113883.4.642.4.682 (for OID based terminology systems) Flags : CaseSensitive, Complete. All codes ValueSet: Structure Map Transform Source Resource XML / JSON OID : 2.16.840.1.113883.4.642.4.682

This Code system is used in the following FHIR core-defined or referenced value sets:

4.3.14.223.1 4.3.2.240.1 Content Definition

How data is copied/created.

4.3.14.223.2 4.3.2.240.2 StructureMapTransform Content

How data is copied/created.

Generated Narrative: CodeSystem map-transform

Last updated: 2025-12-18T07:07:42.17+11:00

Properties

This code system defines the following properties for its concepts

Name Code Type Description
FHIRPath Equivalent fhirpath string FHIRPath equivalent for transform function

Concepts

This case-sensitive code system http://hl7.org/fhir/map-transform defines the following codes:

Code Display Definition Definition FHIRPath Equivalent Copy
create create

create(type : string) - type is passed through to the application on the standard API, and must be known by it.

n/a btn   btn
copy

copy(source).

copy n/a copy(source). btn   btn
truncate truncate

truncate(source, length) - source must be stringy type.

substring btn   btn
escape escape

escape(source, fmt1, fmt2) - change source from one kind of escaping to another (plain, java, xml, json). note that this is for when the string itself is escaped.

n/a btn   btn
cast cast

cast(source, type?) - case cast (convert) source from one type to another. target Target type can be left as implicit if there is one and only one target type known. The default namespace for the type is 'FHIR' (see FHIRPath type specifiers icon )

n/a btn   btn
append append

append(source...) - source is element or string.

& (String concatenation) btn   btn
translate translate

translate(source, uri_of_map) - use the translate operation.

%terminologies.translate() btn   btn
reference reference

reference(source : object) - return a string that references the provided tree properly.

related to resolve() but returns the string pointer btn   btn
dateOp dateOp

Perform a date operation. *Parameters Parameters to be documented*. documented .

 n/a btn   btn
uuid uuid

Generate a random UUID (in lowercase). No Parameters.

n/a btn   btn
pointer pointer

Return the appropriate string to put in a reference that refers to the resource provided as a parameter.

n/a btn   btn
evaluate evaluate

Execute the supplied FHIRPath expression and use the value returned by that.

n/a btn   btn
cc cc

Create a CodeableConcept. Parameters = (text) or (system. Code[, display]).

n/a btn   btn
c c

Create a Coding. Parameters = (system. Code[, display]).

n/a btn   btn
qty qty

Create a quantity. Parameters = (text) or (value, unit, [system, code]) where text is the natural representation e.g. [comparator]value[space]unit.

n/a btn   btn
id id

Create an identifier. Parameters = (system, value[, type]) where type is a code from the identifier type value set.

n/a btn   btn
cp cp

Create a contact details. Parameters = (value) or (system, value). If no system is provided, the system should be inferred from the content of the value.

n/a btn   btn

 

See the full registry of code systems defined as part of FHIR.

Explanation of the columns that may appear on this page:

Level A few code lists that FHIR defines are hierarchical - each code is assigned a level. See Code System for further information.
Source The source of the definition of the code (when the value set draws in codes defined elsewhere)
Code The code (used as the code in the resource instance). If the code is in italics, this indicates that the code is not selectable ('Abstract')
Display The 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
Definition An explanation of the meaning of the concept
Comments Additional notes about how to use the code