---
type: "codesystem"
title: "Conformance Expectation"
codesystem: "conformance-expectation"
---
# Conformance Expectation

- **Official URL**: http://hl7.org/fhir/conformance-expectation
- **Version**: 6.0.0
- **Status**: active
- **Name**: ConformanceExpectation
- **Title**: Conformance Expectation
- **Description**: ConformanceExpectation
- **Case Sensitive**: true
- **Content**: complete

## Concepts

| Code | Display | Definition |
| --- | --- | --- |
| SHALL | SHALL | Support for the specified capability is required to be considered conformant. |
| SHOULD | SHOULD | Support for the specified capability/requirement is strongly encouraged, and failure to support it should only occur after careful consideration. |
| MAY | MAY | Support for the specified capability/requirement is not necessary to be considered conformant, and the requirement should be considered strictly optional. |
| SHOULD-NOT | SHOULD-NOT | Support for the specified capability/requirement is strongly discouraged and should occur only after careful consideration. |
| SHALL-NOT | SHALL-NOT | Support for the specified capability/requirement is prohibited and should not occur only in any circumstance. |

## CodeSystem XML



```xml
<?xml version="1.0" encoding="UTF-8"?>

<CodeSystem xmlns="http://hl7.org/fhir">
  <id value="conformance-expectation"/>
  <extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-wg">
    <valueCode value="fhir"/>
  </extension>
  <extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status">
    <valueCode value="normative"/>
  </extension>
  <url value="http://hl7.org/fhir/conformance-expectation"/>
  <identifier>
    <system value="urn:ietf:rfc:3986"/>
    <value value="urn:oid:2.16.840.1.113883.4.642.1.1271"/>
  </identifier>
  <identifier>
    <system value="urn:ietf:rfc:3986"/>
    <value value="urn:oid:2.16.840.1.113883.4.642.1.839"/>
  </identifier>
  <identifier>
    <use value="old"/>
    <system value="urn:ietf:rfc:3986"/>
    <value value="urn:oid:2.16.840.1.113883.4.642.2.381"/>
  </identifier>
  <version value="6.0.0"/>
  <name value="ConformanceExpectation"/>
  <title value="Conformance Expectation"/>
  <status value="active"/>
  <experimental value="false"/>
  <description value="ConformanceExpectation"/>
  <caseSensitive value="true"/>
  <content value="complete"/>
  <concept>
    <code value="SHALL"/>
    <display value="SHALL"/>
    <definition value="Support for the specified capability is required to be considered conformant."/>
  </concept>
  <concept>
    <code value="SHOULD"/>
    <display value="SHOULD"/>
    <definition value="Support for the specified capability/requirement is strongly encouraged, and failure to support it should only occur after careful consideration."/>
  </concept>
  <concept>
    <code value="MAY"/>
    <display value="MAY"/>
    <definition value="Support for the specified capability/requirement is not necessary to be considered conformant, and the requirement should be considered strictly optional."/>
  </concept>
  <concept>
    <code value="SHOULD-NOT"/>
    <display value="SHOULD-NOT"/>
    <definition value="Support for the specified capability/requirement is strongly discouraged and should occur only after careful consideration."/>
  </concept>
  <concept>
    <code value="SHALL-NOT"/>
    <display value="SHALL-NOT"/>
    <definition value="Support for the specified capability/requirement is prohibited and should not occur only in any circumstance."/>
  </concept>
</CodeSystem>
```