As described in the Searching for codes in value sets (http://build.fhir.org/valueset.html#search) section, the CodeSearchSupport value set defines the codes that are required for use in TerminologyCapabilities.codeSearch

The value set contains two values
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The explicit code, with display "Explicit Codes" seems clear in that it includes codes that are either stated in the includes OR in the resulting expansion
The all code, with display "Implicit Codes", by above definition "only includes all codes based on the expansion of the value set".

Should we consider changing all to implicit so its consistent with the spirit of the definition? Though I know i have fallen victim to embedding meaning into the code itself, seeing all but getting back something that is actually more restrictive (expansion members only, compared to expansion members and codes included in the CLD) doesn't seem right, assuming i've understood the defintions correctly

See Zulip Chat for detailed discussion

https://chat.fhir.org/#narrow/stream/48-terminology/subject/Clarification.20on.20CodeSearchSupport.20valeu.20set