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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  • M48.55XS—

    Collapsed vertebra, not elsewhere classified, thoracolumbar region, sequela of fracture

  • M48.56—

    Collapsed vertebra, not elsewhere classified, lumbar region

  • M48.56XA—

    Collapsed vertebra, not elsewhere classified, lumbar region, initial encounter for fracture

  • M48.56XD—

    Collapsed vertebra, not elsewhere classified, lumbar region, subsequent encounter for fracture with routine healing

  • M48.56XG—

    Collapsed vertebra, not elsewhere classified, lumbar region, subsequent encounter for fracture with delayed healing

  • M48.56XS—

    Collapsed vertebra, not elsewhere classified, lumbar region, sequela of fracture

  • M48.57—

    Collapsed vertebra, not elsewhere classified, lumbosacral region

  • M48.57XA—

    Collapsed vertebra, not elsewhere classified, lumbosacral region, initial encounter for fracture

  • M48.57XD—

    Collapsed vertebra, not elsewhere classified, lumbosacral region, subsequent encounter for fracture with routine healing

  • M48.57XG—

    Collapsed vertebra, not elsewhere classified, lumbosacral region, subsequent encounter for fracture with delayed healing

  • M48.57XS—

    Collapsed vertebra, not elsewhere classified, lumbosacral region, sequela of fracture

  • M48.58—

    Collapsed vertebra, not elsewhere classified, sacral and sacrococcygeal region

  • M48.58XA—

    Collapsed vertebra, not elsewhere classified, sacral and sacrococcygeal region, initial encounter for fracture

  • M48.58XD—

    Collapsed vertebra, not elsewhere classified, sacral and sacrococcygeal region, subsequent encounter for fracture with routine healing

  • M48.58XG—

    Collapsed vertebra, not elsewhere classified, sacral and sacrococcygeal region, subsequent encounter for fracture with delayed healing

  • M48.58XS—

    Collapsed vertebra, not elsewhere classified, sacral and sacrococcygeal region, sequela of fracture

  • M48.8X1—

    Other specified spondylopathies, occipito-atlanto-axial region

  • M48.8X2—

    Other specified spondylopathies, cervical region

  • M48.8X3—

    Other specified spondylopathies, cervicothoracic region

  • M48.8X4—

    Other specified spondylopathies, thoracic region

  • M48.8X5—

    Other specified spondylopathies, thoracolumbar region

  • M48.8X6—

    Other specified spondylopathies, lumbar region

  • M48.8X7—

    Other specified spondylopathies, lumbosacral region

  • M48.8X8—

    Other specified spondylopathies, sacral and sacrococcygeal region

  • M48.8X9—

    Other specified spondylopathies, site unspecified

  • M48.9—

    Spondylopathy, unspecified

  • M49.80—

    Spondylopathy in diseases classified elsewhere, site unspecified

  • M49.81—

    Spondylopathy in diseases classified elsewhere, occipito-atlanto-axial region

  • M49.82—

    Spondylopathy in diseases classified elsewhere, cervical region

  • 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

  • M50.00—

    Cervical disc disorder with myelopathy, unspecified cervical region

  • M50.01—

    Cervical disc disorder with myelopathy, high 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

  • M50.10—

    Cervical disc disorder with radiculopathy, unspecified cervical region

  • M50.11—

    Cervical disc disorder with radiculopathy, high 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

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