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
PrevNext
  • M99.71—

    Connective tissue and disc stenosis of intervertebral foramina of cervical region

  • M99.72—

    Connective tissue and disc stenosis of intervertebral foramina of thoracic region

  • M99.73—

    Connective tissue and disc stenosis of intervertebral foramina of lumbar region

  • M99.74—

    Connective tissue and disc stenosis of intervertebral foramina of sacral region

  • M99.75—

    Connective tissue and disc stenosis of intervertebral foramina of pelvic region

  • M99.76—

    Connective tissue and disc stenosis of intervertebral foramina of lower extremity

  • M99.77—

    Connective tissue and disc stenosis of intervertebral foramina of upper extremity

  • M99.78—

    Connective tissue and disc stenosis of intervertebral foramina of rib cage

  • M99.79—

    Connective tissue and disc stenosis of intervertebral foramina of abdomen and other regions

  • M99.80—

    Other biomechanical lesions of head region

  • M99.81—

    Other biomechanical lesions of cervical region

  • M99.82—

    Other biomechanical lesions of thoracic region

  • M99.83—

    Other biomechanical lesions of lumbar region

  • M99.84—

    Other biomechanical lesions of sacral region

  • M99.85—

    Other biomechanical lesions of pelvic region

  • M99.86—

    Other biomechanical lesions of lower extremity

  • M99.87—

    Other biomechanical lesions of upper extremity

  • M99.88—

    Other biomechanical lesions of rib cage

  • M99.89—

    Other biomechanical lesions of abdomen and other regions

  • M99.9—

    Biomechanical lesion, unspecified

PreviousPage 141 of 141