When the principal diagnosis is one of these 22 codes, the CC/MCC codes assigned to this list count as non-CCs (MS-DRG v44 definitions manual, appendix C).
C82.57C83.17C84.00C84.07–C84.0A (4 codes)C84.47C84.67C84.77C84.A7C84.Z7C84.97C85.17C85.27C85.87C85.97C86.10–C86.11 (2 codes)D49.81–D49.9 (3 codes)