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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  • M62.272—

    Nontraumatic ischemic infarction of muscle, left ankle and foot

  • M62.279—

    Nontraumatic ischemic infarction of muscle, unspecified ankle and foot

  • M62.28—

    Nontraumatic ischemic infarction of muscle, other site

  • M62.3—

    Immobility syndrome (paraplegic)

  • M62.40—

    Contracture of muscle, unspecified site

  • M62.411—

    Contracture of muscle, right shoulder

  • M62.412—

    Contracture of muscle, left shoulder

  • M62.419—

    Contracture of muscle, unspecified shoulder

  • M62.421—

    Contracture of muscle, right upper arm

  • M62.422—

    Contracture of muscle, left upper arm

  • M62.429—

    Contracture of muscle, unspecified upper arm

  • M62.431—

    Contracture of muscle, right forearm

  • M62.432—

    Contracture of muscle, left forearm

  • M62.439—

    Contracture of muscle, unspecified forearm

  • M62.441—

    Contracture of muscle, right hand

  • M62.442—

    Contracture of muscle, left hand

  • M62.449—

    Contracture of muscle, unspecified hand

  • M62.451—

    Contracture of muscle, right thigh

  • M62.452—

    Contracture of muscle, left thigh

  • M62.459—

    Contracture of muscle, unspecified thigh

  • M62.461—

    Contracture of muscle, right lower leg

  • M62.462—

    Contracture of muscle, left lower leg

  • M62.469—

    Contracture of muscle, unspecified lower leg

  • M62.471—

    Contracture of muscle, right ankle and foot

  • M62.472—

    Contracture of muscle, left ankle and foot

  • M62.479—

    Contracture of muscle, unspecified ankle and foot

  • M62.48—

    Contracture of muscle, other site

  • M62.49—

    Contracture of muscle, multiple sites

  • M62.50—

    Muscle wasting and atrophy, not elsewhere classified, unspecified site

  • M62.511—

    Muscle wasting and atrophy, not elsewhere classified, right shoulder

  • M62.512—

    Muscle wasting and atrophy, not elsewhere classified, left shoulder

  • M62.519—

    Muscle wasting and atrophy, not elsewhere classified, unspecified shoulder

  • M62.521—

    Muscle wasting and atrophy, not elsewhere classified, right upper arm

  • M62.522—

    Muscle wasting and atrophy, not elsewhere classified, left upper arm

  • M62.529—

    Muscle wasting and atrophy, not elsewhere classified, unspecified upper arm

  • M62.531—

    Muscle wasting and atrophy, not elsewhere classified, right forearm

  • M62.532—

    Muscle wasting and atrophy, not elsewhere classified, left forearm

  • M62.539—

    Muscle wasting and atrophy, not elsewhere classified, unspecified forearm

  • M62.541—

    Muscle wasting and atrophy, not elsewhere classified, right hand

  • M62.542—

    Muscle wasting and atrophy, not elsewhere classified, left hand

  • M62.549—

    Muscle wasting and atrophy, not elsewhere classified, unspecified hand

  • M62.551—

    Muscle wasting and atrophy, not elsewhere classified, right thigh

  • M62.552—

    Muscle wasting and atrophy, not elsewhere classified, left thigh

  • M62.559—

    Muscle wasting and atrophy, not elsewhere classified, unspecified thigh

  • M62.561—

    Muscle wasting and atrophy, not elsewhere classified, right lower leg

  • M62.562—

    Muscle wasting and atrophy, not elsewhere classified, left lower leg

  • M62.569—

    Muscle wasting and atrophy, not elsewhere classified, unspecified lower leg

  • M62.571—

    Muscle wasting and atrophy, not elsewhere classified, right ankle and foot

  • M62.572—

    Muscle wasting and atrophy, not elsewhere classified, left ankle and foot

  • M62.579—

    Muscle wasting and atrophy, not elsewhere classified, unspecified ankle and foot

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