http://hl7.org/fhir/StructureDefinition/codesystem-use-markdown|5.2.0

If true, the definitions of the concepts should be treated and rendered as markdown for improved presentation. This extension is deprecated as the Terminology Infrastructure work group felt there wasn't a use case for the extension.
NameFlagsCardTypeDescription & Constraints
Extension
0..1Indicate that definitions should be processed as markdown
 
extension
?..0
 
url
?..?
 
value[x] *
1..?
 
 
valueBoolean *
1..?boolean