When the principal diagnosis is one of these 51 codes, the CC/MCC codes assigned to this list count as non-CCs (MS-DRG v44 definitions manual, appendix C).
D47.4
D65
D69.9
D75.821
D75.829
D75.84
D75.A
D89.2
D66
D67
D68.1
D68.2
D68.311
D68.318
D68.32
D68.4
D68.8
D68.9
D69.0