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There is an inconsistency between the specification with OID 1.3.6.1.4.1.19376.1.5.3.1.4.3.1 in the older EXPAND documentation (where the implementation guides were written in paper) where the old validator was based upon and the current ART-DÉCOR definitions.

- Change to moodCode=INT

- I checked the PDF documentation, the parent template from IHE PCC 1.3.6.1.4.1.19376.1.5.3.1.4.3.1, and the C-CDA template 2.16.840.1.113883.10.20.1.43

(see https://art-decor.ihe-europe.net/art-decor/decor-templates--IHE-PCC-?id=1.3.6.1.4.1.19376.1.5.3.1.4.3.1 )

Also see IHE PCC TF2  6.3.4.8.4:
 <act  classCode='ACT' moodCode='INT'>
The  related  statement   is  the  intent   (moodCode='INT')  on  how  the  related  entry  is  to  be 
performed.

- We noticed that, although ART-DECOR states that the attributes are optional, the XSD states that it's mandatory. 
The schema error is correct, as the attribute is required as per W3C schema (and that makes sense for the classCode).
Therefore you MUST specify this in the template as 1..1, either fixed or with a value set of valid class codes.

Suggestion:

- Change the cardinality from 0 .. 1 to 1 .. 1

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