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).
B72
B74.9
B73.00
B73.01
B73.02
B73.09
B73.1
B74.0
B74.1
B74.2
B74.3
B74.4
B74.8