When the principal diagnosis is one of these 19 codes, the CC/MCC codes assigned to this list count as non-CCs (MS-DRG v44 definitions manual, appendix C).
H95.811
H95.89
I97.3
M96.89
N98.1
N98.9
T86.5
T86.830
T86.839
T86.831
T86.832
T86.838