When the principal diagnosis is one of these 14 codes, the CC/MCC codes assigned to this list count as non-CCs (MS-DRG v44 definitions manual, appendix C).
M25.00
M25.021
M25.049
M25.08
T79.A11A
T79.A12A
T79.A19A
M25.031
M25.032
M25.039