Section M15-M19Osteoarthritis

Excludes2

  • osteoarthritis of spine (M47.-)
  1. M18 Osteoarthritis of first carpometacarpal joint

    1. M18.0 Bilateral primary osteoarthritis of first carpometacarpal joints

    2. M18.1 Unilateral primary osteoarthritis of first carpometacarpal joint

      Inclusion term(s):

      • Primary osteoarthritis of first carpometacarpal joint NOS
      1. M18.10 Unilateral primary osteoarthritis of first carpometacarpal joint, unspecified hand

      2. M18.11 Unilateral primary osteoarthritis of first carpometacarpal joint, right hand

      3. M18.12 Unilateral primary osteoarthritis of first carpometacarpal joint, left hand

    3. M18.2 Bilateral post-traumatic osteoarthritis of first carpometacarpal joints

    4. M18.3 Unilateral post-traumatic osteoarthritis of first carpometacarpal joint

      Inclusion term(s):

      • Post-traumatic osteoarthritis of first carpometacarpal joint NOS
      1. M18.30 Unilateral post-traumatic osteoarthritis of first carpometacarpal joint, unspecified hand

      2. M18.31 Unilateral post-traumatic osteoarthritis of first carpometacarpal joint, right hand

      3. M18.32 Unilateral post-traumatic osteoarthritis of first carpometacarpal joint, left hand

    5. M18.4 Other bilateral secondary osteoarthritis of first carpometacarpal joints

    6. M18.5 Other unilateral secondary osteoarthritis of first carpometacarpal joint

      Inclusion term(s):

      • Secondary osteoarthritis of first carpometacarpal joint NOS
      1. M18.50 Other unilateral secondary osteoarthritis of first carpometacarpal joint, unspecified hand

      2. M18.51 Other unilateral secondary osteoarthritis of first carpometacarpal joint, right hand

      3. M18.52 Other unilateral secondary osteoarthritis of first carpometacarpal joint, left hand

    7. M18.9 Osteoarthritis of first carpometacarpal joint, unspecified

Abbreviations used here:

NEC Not elsewhere classifiable
This abbreviation in the Tabular List represents “other specified”. When a specific code is not available for a condition, the Tabular List includes an NEC entry under a code to identify the code as the “other specified” code.

NOS Not otherwise specified
This abbreviation is the equivalent of unspecified.