Existing Wording: versionNeeded -

"This flag is used to signify that the code system has not (or does not) maintain the definitions"

Proposed Wording: This flag is used to signify that the code system does not commit to concept permanence across versions

Comment:

maintain is ambiguous: meaning both "tend to" and "hold firm"

Summary:

maintain is ambiguous: meaning both "tend to" and "hold firm"