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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  • M48.11—

    Ankylosing hyperostosis [Forestier], occipito-atlanto-axial region

  • M48.12—

    Ankylosing hyperostosis [Forestier], cervical region

  • M48.13—

    Ankylosing hyperostosis [Forestier], cervicothoracic region

  • M48.14—

    Ankylosing hyperostosis [Forestier], thoracic region

  • M48.15—

    Ankylosing hyperostosis [Forestier], thoracolumbar region

  • M48.16—

    Ankylosing hyperostosis [Forestier], lumbar region

  • M48.17—

    Ankylosing hyperostosis [Forestier], lumbosacral region

  • M48.18—

    Ankylosing hyperostosis [Forestier], sacral and sacrococcygeal region

  • M48.19—

    Ankylosing hyperostosis [Forestier], multiple sites in spine

  • M48.20—

    Kissing spine, site unspecified

  • M48.21—

    Kissing spine, occipito-atlanto-axial region

  • M48.22—

    Kissing spine, cervical region

  • M48.23—

    Kissing spine, cervicothoracic region

  • M48.24—

    Kissing spine, thoracic region

  • M48.25—

    Kissing spine, thoracolumbar region

  • M48.26—

    Kissing spine, lumbar region

  • M48.27—

    Kissing spine, lumbosacral region

  • M48.30—

    Traumatic spondylopathy, site unspecified

  • M48.31—

    Traumatic spondylopathy, occipito-atlanto-axial region

  • M48.32—

    Traumatic spondylopathy, cervical region

  • M48.33—

    Traumatic spondylopathy, cervicothoracic region

  • M48.34—

    Traumatic spondylopathy, thoracic region

  • M48.35—

    Traumatic spondylopathy, thoracolumbar region

  • M48.36—

    Traumatic spondylopathy, lumbar region

  • M48.37—

    Traumatic spondylopathy, lumbosacral region

  • M48.38—

    Traumatic spondylopathy, sacral and sacrococcygeal region

  • M48.40—

    Fatigue fracture of vertebra, site unspecified

  • M48.40XA—

    Fatigue fracture of vertebra, site unspecified, initial encounter for fracture

  • M48.40XD—

    Fatigue fracture of vertebra, site unspecified, subsequent encounter for fracture with routine healing

  • M48.40XG—

    Fatigue fracture of vertebra, site unspecified, subsequent encounter for fracture with delayed healing

  • M48.40XS—

    Fatigue fracture of vertebra, site unspecified, sequela of fracture

  • M48.41—

    Fatigue fracture of vertebra, occipito-atlanto-axial region

  • M48.41XA—

    Fatigue fracture of vertebra, occipito-atlanto-axial region, initial encounter for fracture

  • M48.41XD—

    Fatigue fracture of vertebra, occipito-atlanto-axial region, subsequent encounter for fracture with routine healing

  • M48.41XG—

    Fatigue fracture of vertebra, occipito-atlanto-axial region, subsequent encounter for fracture with delayed healing

  • M48.41XS—

    Fatigue fracture of vertebra, occipito-atlanto-axial region, sequela of fracture

  • M48.42—

    Fatigue fracture of vertebra, cervical region

  • M48.42XA—

    Fatigue fracture of vertebra, cervical region, initial encounter for fracture

  • M48.42XD—

    Fatigue fracture of vertebra, cervical region, subsequent encounter for fracture with routine healing

  • M48.42XG—

    Fatigue fracture of vertebra, cervical region, subsequent encounter for fracture with delayed healing

  • M48.42XS—

    Fatigue fracture of vertebra, cervical region, sequela of fracture

  • M48.43—

    Fatigue fracture of vertebra, cervicothoracic region

  • M48.43XA—

    Fatigue fracture of vertebra, cervicothoracic region, initial encounter for fracture

  • M48.43XD—

    Fatigue fracture of vertebra, cervicothoracic region, subsequent encounter for fracture with routine healing

  • M48.43XG—

    Fatigue fracture of vertebra, cervicothoracic region, subsequent encounter for fracture with delayed healing

  • M48.43XS—

    Fatigue fracture of vertebra, cervicothoracic region, sequela of fracture

  • M48.44—

    Fatigue fracture of vertebra, thoracic region

  • M48.44XA—

    Fatigue fracture of vertebra, thoracic region, initial encounter for fracture

  • M48.44XD—

    Fatigue fracture of vertebra, thoracic region, subsequent encounter for fracture with routine healing

  • M48.44XG—

    Fatigue fracture of vertebra, thoracic region, subsequent encounter for fracture with delayed healing

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