Release 4 5 Draft Ballot
This page is part of the FHIR Specification (v4.0.1: R4 - Mixed Normative and STU ). This is the current published version in it's permanent home (it will always be available at this URL). For a full list of available versions, see the Directory of published versions Value Set

Clinical Decision Support Work Group   Maturity Level : 0 1 Trial Use Use Context : Any

This is a value set defined by the FHIR project.


Defining URL:
Version: 4.0.1 4.6.0
Name: SynthesisType
Title: SynthesisType

Types of combining results from a body of evidence (eg. summary data meta-analysis).

Committee: Clinical Decision Support Work Group
OID: 2.16.840.1.113883.4.642.3.1347 (for OID based terminology systems)
Source Resource XML / JSON

This value set is used in the following places:

  • CodeSystem: This value set is the designated 'entire code system' value set for SynthesisType
  • Resource: EffectEvidenceSynthesis.synthesisType (CodeableConcept / Extensible ) Resource: RiskEvidenceSynthesis.synthesisType Evidence.synthesisType (CodeableConcept / Extensible )

This value set includes codes from the following code systems:


This expansion generated 01 Nov 2019 14 Apr 2021

This value set contains 6 7 concepts

Expansion based on version 4.0.1 SynthesisType v4.6.0 (CodeSystem)

All codes from system

Code Display Definition
std-MA summary data meta-analysis A meta-analysis of the summary data of estimates from individual studies or data sets.
IPD-MA individual patient data meta-analysis A meta-analysis of the individual participant data from individual studies or data sets.
indirect-NMA indirect network meta-analysis An indirect meta-analysis derived from 2 or more direct comparisons in a network meta-analysis.
combined-NMA combined direct plus indirect network meta-analysis An composite meta-analysis derived from direct comparisons and indirect comparisons in a network meta-analysis.
range range of results A range of results across a body of evidence.
classification classifcation of results An approach describing a body of evidence by categorically classifying individual studies (eg 3 studies showed beneft and 2 studied found no effect).
NotApplicable not applicable Not applicable because the evidence is not from a synthesis but from a single study. Used fo explicitly state that it's not a synthesis.


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

Explanation of the columns that may appear on this page:

Lvl A few code lists that FHIR defines are hierarchical - each code is assigned a level. For value sets, levels are mostly used to organize codes for user convenience, but may follow code system hierarchy - 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