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).
I27.841–I27.849 (3 codes)I46.9–I48.0 (11 codes)I48.3–I49.02 (6 codes)I49.2I87.8–I87.9 (2 codes)I99.8–I99.9 (2 codes)