When the principal diagnosis is one of these 23 codes, the CC/MCC codes assigned to this list count as non-CCs (MS-DRG v44 definitions manual, appendix C).
K55.011
K55.1
K55.30
K55.33
K55.012
K55.019
K55.021
K55.022
K55.029
K55.031
K55.032
K55.039
K55.041
K55.042
K55.049
K55.051
K55.052
K55.059
K55.061
K55.062
K55.069
K55.31
K55.32