The invoice element has been accepted for payment but one or more adjustment(s) have been made to one or more invoice element line items (component charges).
\nAlso includes the concept 'Adjudicate as zero' and items not covered under a particular Policy.
\nInvoice element can be reversed (nullified).
\nRecommend that the invoice element is saved for DUR (Drug Utilization Reporting).
\nhttp://terminology.hl7.org/CodeSystem/v3-ActCode
where concept is-a AA