When the principal diagnosis is one of these 49 codes, the CC/MCC codes assigned to this list count as non-CCs (MS-DRG v44 definitions manual, appendix C).
I83.001
I83.229
I83.90
I83.93
I83.201
I83.202
I83.203
I83.204
I83.205
I83.208
I83.209
I83.211
I83.212
I83.213
I83.214
I83.215
I83.218
I83.219
I83.221
I83.222
I83.223
I83.224
I83.225
I83.228