When the principal diagnosis is one of these 20 codes, the CC/MCC codes assigned to this list count as non-CCs (MS-DRG v44 definitions manual, appendix C).
O11.5O12.05O12.11–O12.13 (3 codes)O12.15O12.21–O12.23 (3 codes)O12.25O13.5O14.05O14.15O14.25O14.95O16.5O26.831–O26.833 (3 codes)O90.89