1. M20 Acquired deformities of fingers and toes

    1. M20.0 Deformity of finger(s)

      1. M20.00 Unspecified deformity of finger(s)

        • M20.001 Unspecified deformity of right finger(s)
        • M20.002 Unspecified deformity of left finger(s)
        • M20.009 Unspecified deformity of unspecified finger(s)
      2. M20.01 Mallet finger

        • M20.011 Mallet finger of right finger(s)
        • M20.012 Mallet finger of left finger(s)
        • M20.019 Mallet finger of unspecified finger(s)
      3. M20.02 Boutonnière deformity

        • M20.021 Boutonnière deformity of right finger(s)
        • M20.022 Boutonnière deformity of left finger(s)
        • M20.029 Boutonnière deformity of unspecified finger(s)
      4. M20.03 Swan-neck deformity

        • M20.031 Swan-neck deformity of right finger(s)
        • M20.032 Swan-neck deformity of left finger(s)
        • M20.039 Swan-neck deformity of unspecified finger(s)
      5. M20.09 Other deformity of finger(s)

        • M20.091 Other deformity of right finger(s)
        • M20.092 Other deformity of left finger(s)
        • M20.099 Other deformity of finger(s), unspecified finger(s)
    2. M20.1 Hallux valgus (acquired)

      1. M20.10 Hallux valgus (acquired), unspecified foot

      2. M20.11 Hallux valgus (acquired), right foot

      3. M20.12 Hallux valgus (acquired), left foot

    3. M20.2 Hallux rigidus

      1. M20.20 Hallux rigidus, unspecified foot

      2. M20.21 Hallux rigidus, right foot

      3. M20.22 Hallux rigidus, left foot

    4. M20.3 Hallux varus (acquired)

      1. M20.30 Hallux varus (acquired), unspecified foot

      2. M20.31 Hallux varus (acquired), right foot

      3. M20.32 Hallux varus (acquired), left foot

    5. M20.4 Other hammer toe(s) (acquired)

      1. M20.40 Other hammer toe(s) (acquired), unspecified foot

      2. M20.41 Other hammer toe(s) (acquired), right foot

      3. M20.42 Other hammer toe(s) (acquired), left foot

    6. M20.5 Other deformities of toe(s) (acquired)

      1. M20.5X Other deformities of toe(s) (acquired)

        • M20.5X1 Other deformities of toe(s) (acquired), right foot
        • M20.5X2 Other deformities of toe(s) (acquired), left foot
        • M20.5X9 Other deformities of toe(s) (acquired), unspecified foot
    7. M20.6 Acquired deformities of toe(s), unspecified

      1. M20.60 Acquired deformities of toe(s), unspecified, unspecified foot

      2. M20.61 Acquired deformities of toe(s), unspecified, right foot

      3. M20.62 Acquired deformities of toe(s), unspecified, left foot

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.