Investigations in the assessment or diagnosis of systemic inflammatory disease or vasculitis - antineutrophil cytoplasmic antibody immunofluorescence (ANCA test), antineutrophil proteinase 3 antibody (PR-3 ANCA test), antimyeloperoxidase antibody (MPO ANCA test) or antiglomerular basement membrane antibody (GBM test) - detection of 1 antibody (Item is subject to rule 6 and 23)