Code
Hierarchy
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M00-M99 Diseases of the musculoskeletal system and connective tissue (M00-M99)
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M15-M19 Osteoarthritis (M15-M19)
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M18 Osteoarthritis of first carpometacarpal joint
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M18.0 Bilateral primary osteoarthritis of first carpometacarpal joints
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M18.1 Unilateral primary osteoarthritis of first carpometacarpal joint
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M18.2 Bilateral post-traumatic osteoarthritis of first carpometacarpal joints
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M18.3 Unilateral post-traumatic osteoarthritis of first carpometacarpal joint
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M18.4 Other bilateral secondary osteoarthritis of first carpometacarpal joints
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M18.5 Other unilateral secondary osteoarthritis of first carpometacarpal joint
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M18.9 Osteoarthritis of first carpometacarpal joint, unspecified
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-
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Notes
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Use an external cause code following the code for the musculoskeletal condition, if applicable, to identify the cause of the musculoskeletal condition
Excludes 2
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osteoarthritis of spine (M47.-)
- M47 Spondylosis
- L40.5 Arthropathic psoriasis
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certain conditions originating in the perinatal period (P04-P96)
- A00-B99 Certain infectious and parasitic diseases (A00-B99)
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compartment syndrome (traumatic) (T79.A-)
- T79.A Traumatic compartment syndrome
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complications of pregnancy, childbirth and the puerperium (O00-O9A)
- O00-O9A Pregnancy, childbirth and the puerperium (O00-O9A)
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congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)
- Q00-Q99 Congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)
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endocrine, nutritional and metabolic diseases (E00-E88)
- S00-T88 Injury, poisoning and certain other consequences of external causes (S00-T88)
- C00-D49 Neoplasms (C00-D49)
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symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)