All ICD10 Codes
Chapter 13

M00–M99: Diseases of the Musculoskeletal System and Connective Tissue

Diseases of the Musculoskeletal System and Connective Tissue diagnostic classification updated for 2026.

Chapter Instructions

Excludes2(Not included here. Code separately if applicable.)
  • arthropathic psoriasis (L40.5-)
  • certain conditions originating in the perinatal period (P04-P96)
  • certain infectious and parasitic diseases (A00-B99)
  • compartment syndrome (traumatic) (T79.A-)
  • complications of pregnancy, childbirth and the puerperium (O00-O9A)
  • congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)
  • endocrine, nutritional and metabolic diseases (E00-E88)
  • injury, poisoning and certain other consequences of external causes (S00-T88)
  • neoplasms (C00-D49)
  • symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
All CodesBillable Only
Internal Codes
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  • M49.83—

    Spondylopathy in diseases classified elsewhere, cervicothoracic region

  • M49.84—

    Spondylopathy in diseases classified elsewhere, thoracic region

  • M49.85—

    Spondylopathy in diseases classified elsewhere, thoracolumbar region

  • M49.86—

    Spondylopathy in diseases classified elsewhere, lumbar region

  • M49.87—

    Spondylopathy in diseases classified elsewhere, lumbosacral region

  • M49.88—

    Spondylopathy in diseases classified elsewhere, sacral and sacrococcygeal region

  • M49.89—

    Spondylopathy in diseases classified elsewhere, multiple sites in spine

  • M50—

    Cervical disc disorders

  • M50.0—

    Cervical disc disorder with myelopathy

  • M50.00—

    Cervical disc disorder with myelopathy, unspecified cervical region

  • M50.01—

    Cervical disc disorder with myelopathy, high cervical region

  • M50.02—

    Cervical disc disorder with myelopathy, mid-cervical region

  • M50.020—

    Cervical disc disorder with myelopathy, mid-cervical region, unspecified level

  • M50.021—

    Cervical disc disorder at C4-C5 level with myelopathy

  • M50.022—

    Cervical disc disorder at C5-C6 level with myelopathy

  • M50.023—

    Cervical disc disorder at C6-C7 level with myelopathy

  • M50.03—

    Cervical disc disorder with myelopathy, cervicothoracic region

  • M50.1—

    Cervical disc disorder with radiculopathy

  • M50.10—

    Cervical disc disorder with radiculopathy, unspecified cervical region

  • M50.11—

    Cervical disc disorder with radiculopathy, high cervical region

  • M50.12—

    Cervical disc disorder with radiculopathy, mid-cervical region

  • M50.120—

    Mid-cervical disc disorder, unspecified level

  • M50.121—

    Cervical disc disorder at C4-C5 level with radiculopathy

  • M50.122—

    Cervical disc disorder at C5-C6 level with radiculopathy

  • M50.123—

    Cervical disc disorder at C6-C7 level with radiculopathy

  • M50.13—

    Cervical disc disorder with radiculopathy, cervicothoracic region

  • M50.2—

    Other cervical disc displacement

  • M50.20—

    Other cervical disc displacement, unspecified cervical region

  • M50.21—

    Other cervical disc displacement, high cervical region

  • M50.22—

    Other cervical disc displacement, mid-cervical region

  • M50.220—

    Other cervical disc displacement, mid-cervical region, unspecified level

  • M50.221—

    Other cervical disc displacement at C4-C5 level

  • M50.222—

    Other cervical disc displacement at C5-C6 level

  • M50.223—

    Other cervical disc displacement at C6-C7 level

  • M50.23—

    Other cervical disc displacement, cervicothoracic region

  • M50.3—

    Other cervical disc degeneration

  • M50.30—

    Other cervical disc degeneration, unspecified cervical region

  • M50.31—

    Other cervical disc degeneration, high cervical region

  • M50.32—

    Other cervical disc degeneration, mid-cervical region

  • M50.320—

    Other cervical disc degeneration, mid-cervical region, unspecified level

  • M50.321—

    Other cervical disc degeneration at C4-C5 level

  • M50.322—

    Other cervical disc degeneration at C5-C6 level

  • M50.323—

    Other cervical disc degeneration at C6-C7 level

  • M50.33—

    Other cervical disc degeneration, cervicothoracic region

  • M50.8—

    Other cervical disc disorders

  • M50.80—

    Other cervical disc disorders, unspecified cervical region

  • M50.81—

    Other cervical disc disorders, high cervical region

  • M50.82—

    Other cervical disc disorders, mid-cervical region

  • M50.820—

    Other cervical disc disorders, mid-cervical region, unspecified level

  • M50.821—

    Other cervical disc disorders at C4-C5 level

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