There is an error in class naming in ADL and the openEHR archetype profile.
C_DV_CODED_TEXT should be named C_CODE_PHRASE. It has become clear now
because we put custom syntax into ADL before defining any C_XXX types.
But as can be seen if you review any of the archetypes, where the custom
syntax occurs e.g. from http://svn.openehr.org/knowledge/archetypes/dev/adl/openehr/ehr/entry/observation/openEHR-EHR-OBSERVATION.blood_pressure.v1.html

ELEMENT[at0008] occurrences ��� {0..1} ��� { – Position
value ��� {
CODED_TEXT ��� {
code ��� { – ********
[local::
at1000, – Standing
at1001, – Sitting
at1002, – Reclining
at1003; – Lying
at1001] – assumed value
} – *****
}
}
}

The AOM entity that the starred section above corresponds to is a CODE_PHRASE,
not a CODED_TEXT (which is one level up). To see this error clearly, this
archetype can be viewed in the ADL Workbench - see the path analysis with
"RM type" and "AOM type" columns turned on. "CODE_PHRASE" and "C_CODED_TEXT"
will be displayed for the node in the above example, which of course do not match.

This means that the openEHR archetype profile is in error, and the
C_DV_CODED_TEXT class has to be renamed. This won't actually affect
any archetypes, but it will affect the archetype tools, and the ADL
production rules, since the name c_coded_text appears in the .y
specification. The change will also not affect any semantics either,
so no-one has to make the change immediately.