When the principal diagnosis is one of these 21 codes, the CC/MCC codes assigned to this list count as non-CCs (MS-DRG v44 definitions manual, appendix C).
A17.9A18.82A18.84A18.89J09.X2J10.08–J10.1 (2 codes)J11.1J44.81–J4A.9 (6 codes)J47.0–J47.1 (2 codes)J68.1J68.4–J68.9 (3 codes)Q33.4