When the principal diagnosis is one of these 27 codes, the CC/MCC codes assigned to this list count as non-CCs (MS-DRG v44 definitions manual, appendix C).
S25.301AS25.302AS25.309AS25.311AS25.312AS25.319AS25.321AS25.322AS25.329AS25.391AS25.392AS25.399AT07.XXXAT14.8XXAT14.90XAT14.91XAT79.A0XAT79.A11AT79.A12AT79.A19AT79.A21AT79.A22AT79.A29AT79.A3XAT79.A9XAT79.8XXAT79.9XXA