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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  • M46.36—

    Infection of intervertebral disc (pyogenic), lumbar region

  • M46.37—

    Infection of intervertebral disc (pyogenic), lumbosacral region

  • M46.38—

    Infection of intervertebral disc (pyogenic), sacral and sacrococcygeal region

  • M46.39—

    Infection of intervertebral disc (pyogenic), multiple sites in spine

  • M46.40—

    Discitis, unspecified, site unspecified

  • M46.41—

    Discitis, unspecified, occipito-atlanto-axial region

  • M46.42—

    Discitis, unspecified, cervical region

  • M46.43—

    Discitis, unspecified, cervicothoracic region

  • M46.44—

    Discitis, unspecified, thoracic region

  • M46.45—

    Discitis, unspecified, thoracolumbar region

  • M46.46—

    Discitis, unspecified, lumbar region

  • M46.47—

    Discitis, unspecified, lumbosacral region

  • M46.48—

    Discitis, unspecified, sacral and sacrococcygeal region

  • M46.49—

    Discitis, unspecified, multiple sites in spine

  • M46.50—

    Other infective spondylopathies, site unspecified

  • M46.51—

    Other infective spondylopathies, occipito-atlanto-axial region

  • M46.52—

    Other infective spondylopathies, cervical region

  • M46.53—

    Other infective spondylopathies, cervicothoracic region

  • M46.54—

    Other infective spondylopathies, thoracic region

  • M46.55—

    Other infective spondylopathies, thoracolumbar region

  • M46.56—

    Other infective spondylopathies, lumbar region

  • M46.57—

    Other infective spondylopathies, lumbosacral region

  • M46.58—

    Other infective spondylopathies, sacral and sacrococcygeal region

  • M46.59—

    Other infective spondylopathies, multiple sites in spine

  • M46.80—

    Other specified inflammatory spondylopathies, site unspecified

  • M46.81—

    Other specified inflammatory spondylopathies, occipito-atlanto-axial region

  • M46.82—

    Other specified inflammatory spondylopathies, cervical region

  • M46.83—

    Other specified inflammatory spondylopathies, cervicothoracic region

  • M46.84—

    Other specified inflammatory spondylopathies, thoracic region

  • M46.85—

    Other specified inflammatory spondylopathies, thoracolumbar region

  • M46.86—

    Other specified inflammatory spondylopathies, lumbar region

  • M46.87—

    Other specified inflammatory spondylopathies, lumbosacral region

  • M46.88—

    Other specified inflammatory spondylopathies, sacral and sacrococcygeal region

  • M46.89—

    Other specified inflammatory spondylopathies, multiple sites in spine

  • M46.90—

    Unspecified inflammatory spondylopathy, site unspecified

  • M46.91—

    Unspecified inflammatory spondylopathy, occipito-atlanto-axial region

  • M46.92—

    Unspecified inflammatory spondylopathy, cervical region

  • M46.93—

    Unspecified inflammatory spondylopathy, cervicothoracic region

  • M46.94—

    Unspecified inflammatory spondylopathy, thoracic region

  • M46.95—

    Unspecified inflammatory spondylopathy, thoracolumbar region

  • M46.96—

    Unspecified inflammatory spondylopathy, lumbar region

  • M46.97—

    Unspecified inflammatory spondylopathy, lumbosacral region

  • M46.98—

    Unspecified inflammatory spondylopathy, sacral and sacrococcygeal region

  • M46.99—

    Unspecified inflammatory spondylopathy, multiple sites in spine

  • M47.011—

    Anterior spinal artery compression syndromes, occipito-atlanto-axial region

  • M47.012—

    Anterior spinal artery compression syndromes, cervical region

  • M47.013—

    Anterior spinal artery compression syndromes, cervicothoracic region

  • M47.014—

    Anterior spinal artery compression syndromes, thoracic region

  • M47.015—

    Anterior spinal artery compression syndromes, thoracolumbar region

  • M47.016—

    Anterior spinal artery compression syndromes, lumbar region

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