When the principal diagnosis is one of these 175 codes, the CC/MCC codes assigned to this list count as non-CCs (MS-DRG v44 definitions manual, appendix C).
A18.50–A18.59 (6 codes)A50.01–A51.46 (45 codes)A51.5–A54.85 (62 codes)A54.89–A58 (15 codes)A63.8–A64 (2 codes)H15.001–H15.009 (4 codes)H15.091–H15.129 (16 codes)M02.30–M02.39 (24 codes)N34.1