---
type: "codesystem"
title: "ResearchStudy Arm Type Code System"
codesystem: "research-study-arm-type"
---
# ResearchStudy Arm Type Code System

- **Official URL**: http://hl7.org/fhir/research-study-arm-type
- **Version**: 6.0.0
- **Status**: draft
- **Name**: ResearchStudyArmType
- **Title**: ResearchStudy Arm Type Code System
- **Publisher**: HL7 (FHIR Project)
- **Description**: Codes for the main intent of the study.
- **Case Sensitive**: true
- **Content**: complete

## Concepts

| Code | Display | Definition |
| --- | --- | --- |
| active-comparator | Active Comparator |  |
| placebo-comparator | Placebo Comparator |  |
| sham-comparator | Sham Comparator |  |
| no-intervention | No Intervention |  |
| experimental | Experimental |  |
| other-arm-type | Other Arm Type |  |

## CodeSystem XML



```xml
<?xml version="1.0" encoding="UTF-8"?>
<CodeSystem	xmlns="http://hl7.org/fhir">
	<id value="research-study-arm-type"/>
	<meta>
		<lastUpdated value="2022-05-15T16:55:11.085+11:00"/>
		
	</meta>
	<extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-wg">
		<valueCode value="brr"/>
	</extension>
	<extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status">
		<valueCode value="normative"/>
	</extension>
	<extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-fmm">
		<valueInteger value="0"/>
	</extension>
	<url value="http://hl7.org/fhir/research-study-arm-type"/>
	<version value="6.0.0"/>
	<name value="ResearchStudyArmType"/>
	<title value="ResearchStudy Arm Type Code System"/>
	<status value="draft"/>
	<experimental value="false"/>
	<date value="2022-05-15T16:55:11.085+11:00"/>
	<publisher value="HL7 (FHIR Project)"/>
	<contact>
		<telecom>
			<system value="url"/>
			<value value="http://hl7.org/fhir"/>
		</telecom>
		<telecom>
			<system value="email"/>
			<value value="fhir@lists.hl7.org"/>
		</telecom>
	</contact>
	<description value="Codes for the main intent of the study."/>
	<caseSensitive value="true"/>
	<valueSet value="http://hl7.org/fhir/ValueSet/research-study-arm-type"/>
	<content value="complete"/>
	<concept>
		<code value="active-comparator"/>
		<display value="Active Comparator"/>
	</concept>
	<concept>
		<code value="placebo-comparator"/>
		<display value="Placebo Comparator"/>
	</concept>
	<concept>
		<code value="sham-comparator"/>
		<display value="Sham Comparator"/>
	</concept>
	<concept>
		<code value="no-intervention"/>
		<display value="No Intervention"/>
	</concept>
	<concept>
		<code value="experimental"/>
		<display value="Experimental"/>
	</concept>
	<concept>
		<code value="other-arm-type"/>
		<display value="Other Arm Type"/>
	</concept>
</CodeSystem>
```