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).
S25.401AS25.402AS25.409AS25.411AS25.412AS25.419AS25.421AS25.422AS25.429AS25.491AS25.492AS25.499AT07.XXXAT14.8XXAT14.90XAT14.91XAT79.A0XAT79.A11AT79.A12AT79.A19AT79.A21AT79.A22AT79.A29AT79.A3XAT79.A9XAT79.8XXAT79.9XXA