When the principal diagnosis is one of these 13 codes, the CC/MCC codes assigned to this list count as non-CCs (MS-DRG v44 definitions manual, appendix C).
H53.10
H53.139
H53.16
R44.1
R48.3
H53.121
H53.122
H53.123
H53.129
H53.131
H53.132
H53.133