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
  • M62.50—

    Muscle wasting and atrophy, not elsewhere classified, unspecified site

  • M62.51—

    Muscle wasting and atrophy, not elsewhere classified, shoulder

  • 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

  • M62.52—

    Muscle wasting and atrophy, not elsewhere classified, upper arm

  • 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

  • M62.53—

    Muscle wasting and atrophy, not elsewhere classified, forearm

  • 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

  • M62.54—

    Muscle wasting and atrophy, not elsewhere classified, hand

  • 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

  • M62.55—

    Muscle wasting and atrophy, not elsewhere classified, thigh

  • 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

  • M62.56—

    Muscle wasting and atrophy, not elsewhere classified, lower leg

  • 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

  • M62.57—

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

  • 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

  • M62.58—

    Muscle wasting and atrophy, not elsewhere classified, other site

  • M62.59—

    Muscle wasting and atrophy, not elsewhere classified, multiple sites

  • M62.5A—

    Muscle wasting and atrophy, not elsewhere classified, back

  • M62.5A0—

    Muscle wasting and atrophy, not elsewhere classified, back, cervical

  • M62.5A1—

    Muscle wasting and atrophy, not elsewhere classified, back, thoracic

  • M62.5A2—

    Muscle wasting and atrophy, not elsewhere classified, back, lumbosacral

  • M62.5A9—

    Muscle wasting and atrophy, not elsewhere classified, back, unspecified level

  • M62.8—

    Other specified disorders of muscle

  • M62.81—

    Muscle weakness (generalized)

  • M62.82—

    Rhabdomyolysis

  • M62.83—

    Muscle spasm

  • M62.830—

    Muscle spasm of back

  • M62.831—

    Muscle spasm of calf

  • M62.838—

    Other muscle spasm

  • M62.84—

    Sarcopenia

  • M62.85—

    Dysfunction of the multifidus muscles, lumbar region

  • M62.89—

    Other specified disorders of muscle

  • M62.9—

    Disorder of muscle, unspecified

  • M63—

    Disorders of muscle in diseases classified elsewhere

  • M63.8—

    Disorders of muscle in diseases classified elsewhere

  • M63.80—

    Disorders of muscle in diseases classified elsewhere, unspecified site

PreviousPage 90 of 174Next