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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  • M61.072—

    Myositis ossificans traumatica, left ankle and foot

  • M61.079—

    Myositis ossificans traumatica, unspecified ankle and foot

  • M61.08—

    Myositis ossificans traumatica, other site

  • M61.09—

    Myositis ossificans traumatica, multiple sites

  • M61.10—

    Myositis ossificans progressiva, unspecified site

  • M61.111—

    Myositis ossificans progressiva, right shoulder

  • M61.112—

    Myositis ossificans progressiva, left shoulder

  • M61.119—

    Myositis ossificans progressiva, unspecified shoulder

  • M61.121—

    Myositis ossificans progressiva, right upper arm

  • M61.122—

    Myositis ossificans progressiva, left upper arm

  • M61.129—

    Myositis ossificans progressiva, unspecified upper arm

  • M61.131—

    Myositis ossificans progressiva, right forearm

  • M61.132—

    Myositis ossificans progressiva, left forearm

  • M61.139—

    Myositis ossificans progressiva, unspecified forearm

  • M61.141—

    Myositis ossificans progressiva, right hand

  • M61.142—

    Myositis ossificans progressiva, left hand

  • M61.143—

    Myositis ossificans progressiva, unspecified hand

  • M61.144—

    Myositis ossificans progressiva, right finger(s)

  • M61.145—

    Myositis ossificans progressiva, left finger(s)

  • M61.146—

    Myositis ossificans progressiva, unspecified finger(s)

  • M61.151—

    Myositis ossificans progressiva, right thigh

  • M61.152—

    Myositis ossificans progressiva, left thigh

  • M61.159—

    Myositis ossificans progressiva, unspecified thigh

  • M61.161—

    Myositis ossificans progressiva, right lower leg

  • M61.162—

    Myositis ossificans progressiva, left lower leg

  • M61.169—

    Myositis ossificans progressiva, unspecified lower leg

  • M61.171—

    Myositis ossificans progressiva, right ankle

  • M61.172—

    Myositis ossificans progressiva, left ankle

  • M61.173—

    Myositis ossificans progressiva, unspecified ankle

  • M61.174—

    Myositis ossificans progressiva, right foot

  • M61.175—

    Myositis ossificans progressiva, left foot

  • M61.176—

    Myositis ossificans progressiva, unspecified foot

  • M61.177—

    Myositis ossificans progressiva, right toe(s)

  • M61.178—

    Myositis ossificans progressiva, left toe(s)

  • M61.179—

    Myositis ossificans progressiva, unspecified toe(s)

  • M61.18—

    Myositis ossificans progressiva, other site

  • M61.19—

    Myositis ossificans progressiva, multiple sites

  • M61.20—

    Paralytic calcification and ossification of muscle, unspecified site

  • M61.211—

    Paralytic calcification and ossification of muscle, right shoulder

  • M61.212—

    Paralytic calcification and ossification of muscle, left shoulder

  • M61.219—

    Paralytic calcification and ossification of muscle, unspecified shoulder

  • M61.221—

    Paralytic calcification and ossification of muscle, right upper arm

  • M61.222—

    Paralytic calcification and ossification of muscle, left upper arm

  • M61.229—

    Paralytic calcification and ossification of muscle, unspecified upper arm

  • M61.231—

    Paralytic calcification and ossification of muscle, right forearm

  • M61.232—

    Paralytic calcification and ossification of muscle, left forearm

  • M61.239—

    Paralytic calcification and ossification of muscle, unspecified forearm

  • M61.241—

    Paralytic calcification and ossification of muscle, right hand

  • M61.242—

    Paralytic calcification and ossification of muscle, left hand

  • M61.249—

    Paralytic calcification and ossification of muscle, unspecified hand

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