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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  • M27.3—

    Alveolitis of jaws

  • M27.40—

    Unspecified cyst of jaw

  • M27.49—

    Other cysts of jaw

  • M27.51—

    Perforation of root canal space due to endodontic treatment

  • M27.52—

    Endodontic overfill

  • M27.53—

    Endodontic underfill

  • M27.59—

    Other periradicular pathology associated with previous endodontic treatment

  • M27.61—

    Osseointegration failure of dental implant

  • M27.62—

    Post-osseointegration biological failure of dental implant

  • M27.63—

    Post-osseointegration mechanical failure of dental implant

  • M27.69—

    Other endosseous dental implant failure

  • M27.8—

    Other specified diseases of jaws

  • M27.9—

    Disease of jaws, unspecified

  • M30.0—

    Polyarteritis nodosa

  • M30.1—

    Polyarteritis with lung involvement [Churg-Strauss]

  • M30.2—

    Juvenile polyarteritis

  • M30.3—

    Mucocutaneous lymph node syndrome [Kawasaki]

  • M30.8—

    Other conditions related to polyarteritis nodosa

  • M31.0—

    Hypersensitivity angiitis

  • M31.10—

    Thrombotic microangiopathy, unspecified

  • M31.11—

    Hematopoietic stem cell transplantation-associated thrombotic microangiopathy [HSCT-TMA]

  • M31.19—

    Other thrombotic microangiopathy

  • M31.2—

    Lethal midline granuloma

  • M31.30—

    Wegener's granulomatosis without renal involvement

  • M31.31—

    Wegener's granulomatosis with renal involvement

  • M31.4—

    Aortic arch syndrome [Takayasu]

  • M31.5—

    Giant cell arteritis with polymyalgia rheumatica

  • M31.6—

    Other giant cell arteritis

  • M31.7—

    Microscopic polyangiitis

  • M31.8—

    Other specified necrotizing vasculopathies

  • M31.9—

    Necrotizing vasculopathy, unspecified

  • M32.0—

    Drug-induced systemic lupus erythematosus

  • M32.10—

    Systemic lupus erythematosus, organ or system involvement unspecified

  • M32.11—

    Endocarditis in systemic lupus erythematosus

  • M32.12—

    Pericarditis in systemic lupus erythematosus

  • M32.13—

    Lung involvement in systemic lupus erythematosus

  • M32.14—

    Glomerular disease in systemic lupus erythematosus

  • M32.15—

    Tubulo-interstitial nephropathy in systemic lupus erythematosus

  • M32.19—

    Other organ or system involvement in systemic lupus erythematosus

  • M32.8—

    Other forms of systemic lupus erythematosus

  • M32.9—

    Systemic lupus erythematosus, unspecified

  • M33.00—

    Juvenile dermatomyositis, organ involvement unspecified

  • M33.01—

    Juvenile dermatomyositis with respiratory involvement

  • M33.02—

    Juvenile dermatomyositis with myopathy

  • M33.03—

    Juvenile dermatomyositis without myopathy

  • M33.09—

    Juvenile dermatomyositis with other organ involvement

  • M33.10—

    Other dermatomyositis, organ involvement unspecified

  • M33.11—

    Other dermatomyositis with respiratory involvement

  • M33.12—

    Other dermatomyositis with myopathy

  • M33.13—

    Other dermatomyositis without myopathy

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