Release 5 Draft Ballot

This is the Continuous Integration Build of FHIR (will be incorrect/inconsistent at times).
See the Directory of published versions Code System

Clinical Decision Support Work Group Maturity Level: 0Trial Use Use Context: Any

This is a code system defined by the FHIR project.


Defining URL:

The format for display of the citation.

Committee:Clinical Decision Support Work Group
OID:2.16.840.1.113883.4.642.1.0 (for OID based terminology systems)
Source ResourceXML / JSON

This Code system is used in the following value sets:

This code system defines the following codes:

Code Display Definition
vancouver Vancouver style Citation style used by International Committee of Medical Journal Editors and maintained by US National Library of Medicine.
ama11 American Medical Association 11th edition Medicine.
apa7 American Psychological Association 7th edition APA 7th edition (October 2019) used by Education, Psychology and Sciences.
apa6 American Psychological Association 6th edition APA 6th edition used by Education, Psychology and Sciences.
asa6 American Sociological Association 6th edition Sociology.
mla8 Modern Language Association 8th edition MLA 8th edition used by the Humanities.
cochrane Cochrane Style Used by Cochrane reviews, example: Huang, M, Tang T, Pang, P, Li, M, Ma R, Lu, J, et al. Treating COVID-19 with Chloroquine. J Mol Cell Biol 2020; 12(4):322–5.
elsevier-harvard Elsevier-Harvard Style Biology ecology.
nature Nature Referencing style Biology.
acs American Chemical Society Chemistry.
chicago-a-17 Chicago Style Version 17 Author Date Used by Business, History and the Fine Arts.
chicago-b-17 Chicago Style Version 17 Full note Used by Business, History and the Fine Arts.
ieee Institute of Electrical and Electronics Engineers IT, Engineering.
comppub Computable Publishing Citation style to report human-readable and/or machine-readable access paths, example: Alper BS, Dehnbostel J, Shahin K. 14-day mortality remdesivir vs placebo meta-analysis (ACTT-1, Wang et al, WHO SOLIDARITY). Fast Evidence Interoperability Resources (FEvIR) Platform, entry 55, version 4. Created 2020 Dec 17. Revised 2020 Dec 21. Accessed 2021 Mar 13. Computable resource at:


See the full registry of code systems 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. 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