M61.18 Myositis ossificans progressiva, other site
Instructional Notes:
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M61.18
Description: Myositis ossificans progressiva, other site
↓
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M61.1
Description: Myositis ossificans progressiva
Inclusion Term:
- Fibrodysplasia ossificans progressiva
↓
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M61
Description: Calcification and ossification of muscle
↓
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M60-M63
Description: Disorders of muscles (M60-M63)
Exclude1:
- dermatopolymyositis (M33.-)
- myopathy in amyloidosis (E85.-)
- myopathy in polyarteritis nodosa (M30.0)
- myopathy in rheumatoid arthritis (M05.32)
- myopathy in scleroderma (M34.-)
- myopathy in Sjögren's syndrome (M35.03)
- myopathy in systemic lupus erythematosus (M32.-)
Exclude2:
- muscular dystrophies and myopathies (G71-G72)
↓
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M00-M99
Description: Diseases of the musculoskeletal system and connective tissue
Exclude2:
- 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)
Notes:
- Use an external cause code following the code for the musculoskeletal condition, if applicable, to identify the cause of the musculoskeletal condition