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).
C83.00C83.06C83.08–C83.0A (3 codes)C83.80C83.86C83.88–C83.90 (4 codes)C83.96C83.98–C83.9A (3 codes)C86.50–C86.61 (4 codes)D49.81–D49.9 (3 codes)