context CoverageActivity
inv: self.informant->size()>0 or
self.reference->exists(ref : POCDMT000040Reference |
		ref.typeCode=XActRelationshipExternalReference::XCRPT
) or
self.entryRelationship->exists(enresh : POCDMT000040EntryRelationship |
		enresh.typeCode=XActRelationshipEntryRelationship::REFR and 
		enresh.observation.code.code = '48766-0'
)