When the principal diagnosis is one of these 46 codes, the CC/MCC codes assigned to this list count as non-CCs (MS-DRG v44 definitions manual, appendix C).
A02.1A20.7A22.7A39.2–A39.4 (3 codes)A40.9–A41.9 (16 codes)A42.7A48.2A48.4A48.8–A49.9 (8 codes)B00.7B92B94.2–B94.9 (3 codes)P39.2–P39.9 (5 codes)P95P96.9R78.81