When the principal diagnosis is one of these 45 codes, the CC/MCC codes assigned to this list count as non-CCs (MS-DRG v44 definitions manual, appendix C).
G70.00
G70.80
G70.89
G72.3
G72.81
G72.9
G96.9
G98.0
G98.8
G72.0
G72.1
G72.2