When the principal diagnosis is one of these 25 codes, the CC/MCC codes assigned to this list count as non-CCs (MS-DRG v44 definitions manual, appendix C).
C45.7–C45.9 (2 codes)C74.00–C74.92 (9 codes)C75.9–C7A.00 (2 codes)C7A.098–C7B.00 (4 codes)C7B.1C76.2C76.8C79.70–C79.72 (3 codes)C80.0–C80.1 (2 codes)