M61.569
Other ossification of muscle, unspecified lower leg
BillableComplete code, valid to report
M61.569 (also written M61569) is a billable ICD-10-CM diagnosis code for other ossification of muscle, unspecified lower leg. It is part of the FY2027 code set, effective October 1, 2026. It is one of the 154 codes in category M61 (Calcification and ossification of muscle). Its coding notes include 7 Excludes1 entries and 11 Excludes2 entries.
Excludes1
Not coded here. The listed conditions generally should not be reported together.
Also from chapter/block level (7 notes)
Inherited from M60–M63 Disorders of muscles
Excludes2
Not included here. Both codes may be reported if the patient has both conditions.
Also from chapter/block level (11 notes)
Inherited from M60–M63 Disorders of muscles
- muscular dystrophies and myopathies (G71-G72)
Inherited from Chapter 13 Diseases of the musculoskeletal system and connective tissue
- 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
Also from chapter/block level (1 note)
Inherited from Chapter 13 Diseases of the musculoskeletal system and connective tissue
- Use an external cause code following the code for the musculoskeletal condition, if applicable, to identify the cause of the musculoskeletal condition