When the principal diagnosis is one of these 24 codes, the CC/MCC codes assigned to this list count as non-CCs (MS-DRG v44 definitions manual, appendix C).
B25.2
K85.00
K86.1
K86.81
K86.9
K85.01
K85.02
K85.10
K85.11
K85.12
K85.20
K85.21
K85.22
K85.30
K85.31
K85.32
K85.80
K85.81
K85.82
K85.90
K85.91
K85.92