When resolving an identifier that is also the root of a FHIRPath expression, it is resolved as a type name first, and if it resolves to a type, it must resolve to the type of the context (or a supertype). Otherwise, it is resolved as a path on the context. If the identifier cannot be resolved, the evaluation will end and signal an error to the calling environment.

"Otherwise, it is resolved as a path on the context" refers to "it must resolve to the type of the context", not "if it resolves to a type" - but the text could be read either way.

Changing the text to "... and if it resolves to a type and that type is the type of the context (or a supertype). Otherwise, ..." clears up the ambiguity.

chat.fhir conversation.