ICD-10-CM > M00-M99 > M50-M54 > M50 > M50.3 > M50.32 M50.32 Other cervical disc degeneration, mid-cervical region Non-Billable/Non-Specific Codes M50.320Other cervical disc degeneration, mid-cervical region, unspecified levelM50.321Other cervical disc degeneration at C4-C5 levelM50.322Other cervical disc degeneration at C5-C6 levelM50.323Other cervical disc degeneration at C6-C7 level