Diseases of the musculoskeletal system and connective tissue (M00-M99)

Note:
Use an external cause code following the code for the musculoskeletal condition, if applicable, to identify the cause of the musculoskeletal condition
Excludes 2:
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)

Osteoarthritis (M15-M19)

Excludes 2:
osteoarthritis of spine (M47.-)
M15 Polyosteoarthritis [+]
Includes: arthritis of multiple sites
Excludes 1: bilateral involvement of single joint (M16-M19)
M16 Osteoarthritis of hip [+]
M17 Osteoarthritis of knee [+]
M18 Osteoarthritis of first carpometacarpal joint [+]
M19 Other and unspecified osteoarthritis [+]
Excludes 1: polyarthritis (M15.-)
Excludes 2: arthrosis of spine (M47.-)
hallux rigidus (M20.2)
osteoarthritis of spine (M47.-)

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