When the principal diagnosis is one of these 35 codes, the CC/MCC codes assigned to this list count as non-CCs (MS-DRG v44 definitions manual, appendix C).
I73.81–I75.89 (24 codes)I77.0–I77.2 (3 codes)I77.5–I77.6 (2 codes)I77.810–I77.819 (4 codes)M31.8–M31.9 (2 codes)