# PEPPOL-T19-B19601

Source: https://xmlvalid.com/rules/PEPPOL-T19-B19601

> Value MUST be part of code list 'Document name code, full list (UNCL1001)' or 'Image code (OpenPeppol)'.

- Level: error
- Rule sets: Peppol Catalogue rules 3.5
- Context: `/ubl:Catalogue/cac:CatalogueLine/cac:Item/cac:ItemSpecificationDocumentReference/cbc:DocumentTypeCode`
- Test: `(some $code in $clUNCL1001 satisfies $code = normalize-space(text())) or (some $code in $clImage satisfies $code = normalize-space(text()))`

Validate a document against these rules: https://xmlvalid.com/validate