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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  • M60.269—

    Foreign body granuloma of soft tissue, not elsewhere classified, unspecified lower leg

  • M60.271—

    Foreign body granuloma of soft tissue, not elsewhere classified, right ankle and foot

  • M60.272—

    Foreign body granuloma of soft tissue, not elsewhere classified, left ankle and foot

  • M60.279—

    Foreign body granuloma of soft tissue, not elsewhere classified, unspecified ankle and foot

  • M60.28—

    Foreign body granuloma of soft tissue, not elsewhere classified, other site

  • M60.80—

    Other myositis, unspecified site

  • M60.811—

    Other myositis, right shoulder

  • M60.812—

    Other myositis, left shoulder

  • M60.819—

    Other myositis, unspecified shoulder

  • M60.821—

    Other myositis, right upper arm

  • M60.822—

    Other myositis, left upper arm

  • M60.829—

    Other myositis, unspecified upper arm

  • M60.831—

    Other myositis, right forearm

  • M60.832—

    Other myositis, left forearm

  • M60.839—

    Other myositis, unspecified forearm

  • M60.841—

    Other myositis, right hand

  • M60.842—

    Other myositis, left hand

  • M60.849—

    Other myositis, unspecified hand

  • M60.851—

    Other myositis, right thigh

  • M60.852—

    Other myositis, left thigh

  • M60.859—

    Other myositis, unspecified thigh

  • M60.861—

    Other myositis, right lower leg

  • M60.862—

    Other myositis, left lower leg

  • M60.869—

    Other myositis, unspecified lower leg

  • M60.871—

    Other myositis, right ankle and foot

  • M60.872—

    Other myositis, left ankle and foot

  • M60.879—

    Other myositis, unspecified ankle and foot

  • M60.88—

    Other myositis, other site

  • M60.89—

    Other myositis, multiple sites

  • M60.9—

    Myositis, unspecified

  • M61.00—

    Myositis ossificans traumatica, unspecified site

  • M61.011—

    Myositis ossificans traumatica, right shoulder

  • M61.012—

    Myositis ossificans traumatica, left shoulder

  • M61.019—

    Myositis ossificans traumatica, unspecified shoulder

  • M61.021—

    Myositis ossificans traumatica, right upper arm

  • M61.022—

    Myositis ossificans traumatica, left upper arm

  • M61.029—

    Myositis ossificans traumatica, unspecified upper arm

  • M61.031—

    Myositis ossificans traumatica, right forearm

  • M61.032—

    Myositis ossificans traumatica, left forearm

  • M61.039—

    Myositis ossificans traumatica, unspecified forearm

  • M61.041—

    Myositis ossificans traumatica, right hand

  • M61.042—

    Myositis ossificans traumatica, left hand

  • M61.049—

    Myositis ossificans traumatica, unspecified hand

  • M61.051—

    Myositis ossificans traumatica, right thigh

  • M61.052—

    Myositis ossificans traumatica, left thigh

  • M61.059—

    Myositis ossificans traumatica, unspecified thigh

  • M61.061—

    Myositis ossificans traumatica, right lower leg

  • M61.062—

    Myositis ossificans traumatica, left lower leg

  • M61.069—

    Myositis ossificans traumatica, unspecified lower leg

  • M61.071—

    Myositis ossificans traumatica, right ankle and foot

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