When the principal diagnosis is one of these 229 codes, the CC/MCC codes assigned to this list count as non-CCs (MS-DRG v44 definitions manual, appendix C).
K00.0
K08.9
M26.00
M26.639
M26.69
M26.9
M27.61
M27.69
K04.01
K04.02
K04.4