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| Report: | General Info | Constrained Elements |
| General Info | |
| Name | Category_validity |
| Expression | inv: category <> Void and terminology(Terminology_id_openehr). has_code_for_group_id(Group_id_composition_category, category. defining_code) |
| Base Classes | Class |
| Constrained Elements | |
| Name | Type |
| COMPOSITION | Class |