Excludes2

  • burns and corrosions (T20-T32)
  • frostbite (T33-T34)
  • injuries of wrist and hand (S60-S69)
  • insect bite or sting, venomous (T63.4)
  1. S56 Injury of muscle, fascia and tendon at forearm level

    Excludes2

    • injury of muscle, fascia and tendon at or below wrist (S66.-)
    • sprain of joints and ligaments of elbow (S53.4-)

    The appropriate 7th character is to be added to each code from category S56

    • A - initial encounter
    • D - subsequent encounter
    • S - sequela
    1. S56.0 Injury of flexor muscle, fascia and tendon of thumb at forearm level

      1. S56.00 Unspecified injury of flexor muscle, fascia and tendon of thumb at forearm level

        • S56.001 Unspecified injury of flexor muscle, fascia and tendon of right thumb at forearm level
        • S56.002 Unspecified injury of flexor muscle, fascia and tendon of left thumb at forearm level
        • S56.009 Unspecified injury of flexor muscle, fascia and tendon of unspecified thumb at forearm level
      2. S56.01 Strain of flexor muscle, fascia and tendon of thumb at forearm level

        • S56.011 Strain of flexor muscle, fascia and tendon of right thumb at forearm level
        • S56.012 Strain of flexor muscle, fascia and tendon of left thumb at forearm level
        • S56.019 Strain of flexor muscle, fascia and tendon of unspecified thumb at forearm level
      3. S56.02 Laceration of flexor muscle, fascia and tendon of thumb at forearm level

        • S56.021 Laceration of flexor muscle, fascia and tendon of right thumb at forearm level
        • S56.022 Laceration of flexor muscle, fascia and tendon of left thumb at forearm level
        • S56.029 Laceration of flexor muscle, fascia and tendon of unspecified thumb at forearm level
      4. S56.09 Other injury of flexor muscle, fascia and tendon of thumb at forearm level

        • S56.091 Other injury of flexor muscle, fascia and tendon of right thumb at forearm level
        • S56.092 Other injury of flexor muscle, fascia and tendon of left thumb at forearm level
        • S56.099 Other injury of flexor muscle, fascia and tendon of unspecified thumb at forearm level
    2. S56.1 Injury of flexor muscle, fascia and tendon of other and unspecified finger at forearm level

      1. S56.10 Unspecified injury of flexor muscle, fascia and tendon of other and unspecified finger at forearm level

        • S56.101 Unspecified injury of flexor muscle, fascia and tendon of right index finger at forearm level
        • S56.102 Unspecified injury of flexor muscle, fascia and tendon of left index finger at forearm level
        • S56.103 Unspecified injury of flexor muscle, fascia and tendon of right middle finger at forearm level
        • S56.104 Unspecified injury of flexor muscle, fascia and tendon of left middle finger at forearm level
        • S56.105 Unspecified injury of flexor muscle, fascia and tendon of right ring finger at forearm level
        • S56.106 Unspecified injury of flexor muscle, fascia and tendon of left ring finger at forearm level
        • S56.107 Unspecified injury of flexor muscle, fascia and tendon of right little finger at forearm level
        • S56.108 Unspecified injury of flexor muscle, fascia and tendon of left little finger at forearm level
        • S56.109 Unspecified injury of flexor muscle, fascia and tendon of unspecified finger at forearm level
      2. S56.11 Strain of flexor muscle, fascia and tendon of other and unspecified finger at forearm level

        • S56.111 Strain of flexor muscle, fascia and tendon of right index finger at forearm level
        • S56.112 Strain of flexor muscle, fascia and tendon of left index finger at forearm level
        • S56.113 Strain of flexor muscle, fascia and tendon of right middle finger at forearm level
        • S56.114 Strain of flexor muscle, fascia and tendon of left middle finger at forearm level
        • S56.115 Strain of flexor muscle, fascia and tendon of right ring finger at forearm level
        • S56.116 Strain of flexor muscle, fascia and tendon of left ring finger at forearm level
        • S56.117 Strain of flexor muscle, fascia and tendon of right little finger at forearm level
        • S56.118 Strain of flexor muscle, fascia and tendon of left little finger at forearm level
        • S56.119 Strain of flexor muscle, fascia and tendon of finger of unspecified finger at forearm level
      3. S56.12 Laceration of flexor muscle, fascia and tendon of other and unspecified finger at forearm level

        • S56.121 Laceration of flexor muscle, fascia and tendon of right index finger at forearm level
        • S56.122 Laceration of flexor muscle, fascia and tendon of left index finger at forearm level
        • S56.123 Laceration of flexor muscle, fascia and tendon of right middle finger at forearm level
        • S56.124 Laceration of flexor muscle, fascia and tendon of left middle finger at forearm level
        • S56.125 Laceration of flexor muscle, fascia and tendon of right ring finger at forearm level
        • S56.126 Laceration of flexor muscle, fascia and tendon of left ring finger at forearm level
        • S56.127 Laceration of flexor muscle, fascia and tendon of right little finger at forearm level
        • S56.128 Laceration of flexor muscle, fascia and tendon of left little finger at forearm level
        • S56.129 Laceration of flexor muscle, fascia and tendon of unspecified finger at forearm level
      4. S56.19 Other injury of flexor muscle, fascia and tendon of other and unspecified finger at forearm level

        • S56.191 Other injury of flexor muscle, fascia and tendon of right index finger at forearm level
        • S56.192 Other injury of flexor muscle, fascia and tendon of left index finger at forearm level
        • S56.193 Other injury of flexor muscle, fascia and tendon of right middle finger at forearm level
        • S56.194 Other injury of flexor muscle, fascia and tendon of left middle finger at forearm level
        • S56.195 Other injury of flexor muscle, fascia and tendon of right ring finger at forearm level
        • S56.196 Other injury of flexor muscle, fascia and tendon of left ring finger at forearm level
        • S56.197 Other injury of flexor muscle, fascia and tendon of right little finger at forearm level
        • S56.198 Other injury of flexor muscle, fascia and tendon of left little finger at forearm level
        • S56.199 Other injury of flexor muscle, fascia and tendon of unspecified finger at forearm level
    3. S56.2 Injury of other flexor muscle, fascia and tendon at forearm level

      1. S56.20 Unspecified injury of other flexor muscle, fascia and tendon at forearm level

        • S56.201 Unspecified injury of other flexor muscle, fascia and tendon at forearm level, right arm
        • S56.202 Unspecified injury of other flexor muscle, fascia and tendon at forearm level, left arm
        • S56.209 Unspecified injury of other flexor muscle, fascia and tendon at forearm level, unspecified arm
      2. S56.21 Strain of other flexor muscle, fascia and tendon at forearm level

        • S56.211 Strain of other flexor muscle, fascia and tendon at forearm level, right arm
        • S56.212 Strain of other flexor muscle, fascia and tendon at forearm level, left arm
        • S56.219 Strain of other flexor muscle, fascia and tendon at forearm level, unspecified arm
      3. S56.22 Laceration of other flexor muscle, fascia and tendon at forearm level

        • S56.221 Laceration of other flexor muscle, fascia and tendon at forearm level, right arm
        • S56.222 Laceration of other flexor muscle, fascia and tendon at forearm level, left arm
        • S56.229 Laceration of other flexor muscle, fascia and tendon at forearm level, unspecified arm
      4. S56.29 Other injury of other flexor muscle, fascia and tendon at forearm level

        • S56.291 Other injury of other flexor muscle, fascia and tendon at forearm level, right arm
        • S56.292 Other injury of other flexor muscle, fascia and tendon at forearm level, left arm
        • S56.299 Other injury of other flexor muscle, fascia and tendon at forearm level, unspecified arm
    4. S56.3 Injury of extensor or abductor muscles, fascia and tendons of thumb at forearm level

      1. S56.30 Unspecified injury of extensor or abductor muscles, fascia and tendons of thumb at forearm level

        • S56.301 Unspecified injury of extensor or abductor muscles, fascia and tendons of right thumb at forearm level
        • S56.302 Unspecified injury of extensor or abductor muscles, fascia and tendons of left thumb at forearm level
        • S56.309 Unspecified injury of extensor or abductor muscles, fascia and tendons of unspecified thumb at forearm level
      2. S56.31 Strain of extensor or abductor muscles, fascia and tendons of thumb at forearm level

        • S56.311 Strain of extensor or abductor muscles, fascia and tendons of right thumb at forearm level
        • S56.312 Strain of extensor or abductor muscles, fascia and tendons of left thumb at forearm level
        • S56.319 Strain of extensor or abductor muscles, fascia and tendons of unspecified thumb at forearm level
      3. S56.32 Laceration of extensor or abductor muscles, fascia and tendons of thumb at forearm level

        • S56.321 Laceration of extensor or abductor muscles, fascia and tendons of right thumb at forearm level
        • S56.322 Laceration of extensor or abductor muscles, fascia and tendons of left thumb at forearm level
        • S56.329 Laceration of extensor or abductor muscles, fascia and tendons of unspecified thumb at forearm level
      4. S56.39 Other injury of extensor or abductor muscles, fascia and tendons of thumb at forearm level

        • S56.391 Other injury of extensor or abductor muscles, fascia and tendons of right thumb at forearm level
        • S56.392 Other injury of extensor or abductor muscles, fascia and tendons of left thumb at forearm level
        • S56.399 Other injury of extensor or abductor muscles, fascia and tendons of unspecified thumb at forearm level
    5. S56.4 Injury of extensor muscle, fascia and tendon of other and unspecified finger at forearm level

      1. S56.40 Unspecified injury of extensor muscle, fascia and tendon of other and unspecified finger at forearm level

        • S56.401 Unspecified injury of extensor muscle, fascia and tendon of right index finger at forearm level
        • S56.402 Unspecified injury of extensor muscle, fascia and tendon of left index finger at forearm level
        • S56.403 Unspecified injury of extensor muscle, fascia and tendon of right middle finger at forearm level
        • S56.404 Unspecified injury of extensor muscle, fascia and tendon of left middle finger at forearm level
        • S56.405 Unspecified injury of extensor muscle, fascia and tendon of right ring finger at forearm level
        • S56.406 Unspecified injury of extensor muscle, fascia and tendon of left ring finger at forearm level
        • S56.407 Unspecified injury of extensor muscle, fascia and tendon of right little finger at forearm level
        • S56.408 Unspecified injury of extensor muscle, fascia and tendon of left little finger at forearm level
        • S56.409 Unspecified injury of extensor muscle, fascia and tendon of unspecified finger at forearm level
      2. S56.41 Strain of extensor muscle, fascia and tendon of other and unspecified finger at forearm level

        • S56.411 Strain of extensor muscle, fascia and tendon of right index finger at forearm level
        • S56.412 Strain of extensor muscle, fascia and tendon of left index finger at forearm level
        • S56.413 Strain of extensor muscle, fascia and tendon of right middle finger at forearm level
        • S56.414 Strain of extensor muscle, fascia and tendon of left middle finger at forearm level
        • S56.415 Strain of extensor muscle, fascia and tendon of right ring finger at forearm level
        • S56.416 Strain of extensor muscle, fascia and tendon of left ring finger at forearm level
        • S56.417 Strain of extensor muscle, fascia and tendon of right little finger at forearm level
        • S56.418 Strain of extensor muscle, fascia and tendon of left little finger at forearm level
        • S56.419 Strain of extensor muscle, fascia and tendon of finger, unspecified finger at forearm level
      3. S56.42 Laceration of extensor muscle, fascia and tendon of other and unspecified finger at forearm level

        • S56.421 Laceration of extensor muscle, fascia and tendon of right index finger at forearm level
        • S56.422 Laceration of extensor muscle, fascia and tendon of left index finger at forearm level
        • S56.423 Laceration of extensor muscle, fascia and tendon of right middle finger at forearm level
        • S56.424 Laceration of extensor muscle, fascia and tendon of left middle finger at forearm level
        • S56.425 Laceration of extensor muscle, fascia and tendon of right ring finger at forearm level
        • S56.426 Laceration of extensor muscle, fascia and tendon of left ring finger at forearm level
        • S56.427 Laceration of extensor muscle, fascia and tendon of right little finger at forearm level
        • S56.428 Laceration of extensor muscle, fascia and tendon of left little finger at forearm level
        • S56.429 Laceration of extensor muscle, fascia and tendon of unspecified finger at forearm level
      4. S56.49 Other injury of extensor muscle, fascia and tendon of other and unspecified finger at forearm level

        • S56.491 Other injury of extensor muscle, fascia and tendon of right index finger at forearm level
        • S56.492 Other injury of extensor muscle, fascia and tendon of left index finger at forearm level
        • S56.493 Other injury of extensor muscle, fascia and tendon of right middle finger at forearm level
        • S56.494 Other injury of extensor muscle, fascia and tendon of left middle finger at forearm level
        • S56.495 Other injury of extensor muscle, fascia and tendon of right ring finger at forearm level
        • S56.496 Other injury of extensor muscle, fascia and tendon of left ring finger at forearm level
        • S56.497 Other injury of extensor muscle, fascia and tendon of right little finger at forearm level
        • S56.498 Other injury of extensor muscle, fascia and tendon of left little finger at forearm level
        • S56.499 Other injury of extensor muscle, fascia and tendon of unspecified finger at forearm level
    6. S56.5 Injury of other extensor muscle, fascia and tendon at forearm level

      1. S56.50 Unspecified injury of other extensor muscle, fascia and tendon at forearm level

        • S56.501 Unspecified injury of other extensor muscle, fascia and tendon at forearm level, right arm
        • S56.502 Unspecified injury of other extensor muscle, fascia and tendon at forearm level, left arm
        • S56.509 Unspecified injury of other extensor muscle, fascia and tendon at forearm level, unspecified arm
      2. S56.51 Strain of other extensor muscle, fascia and tendon at forearm level

        • S56.511 Strain of other extensor muscle, fascia and tendon at forearm level, right arm
        • S56.512 Strain of other extensor muscle, fascia and tendon at forearm level, left arm
        • S56.519 Strain of other extensor muscle, fascia and tendon at forearm level, unspecified arm
      3. S56.52 Laceration of other extensor muscle, fascia and tendon at forearm level

        • S56.521 Laceration of other extensor muscle, fascia and tendon at forearm level, right arm
        • S56.522 Laceration of other extensor muscle, fascia and tendon at forearm level, left arm
        • S56.529 Laceration of other extensor muscle, fascia and tendon at forearm level, unspecified arm
      4. S56.59 Other injury of other extensor muscle, fascia and tendon at forearm level

        • S56.591 Other injury of other extensor muscle, fascia and tendon at forearm level, right arm
        • S56.592 Other injury of other extensor muscle, fascia and tendon at forearm level, left arm
        • S56.599 Other injury of other extensor muscle, fascia and tendon at forearm level, unspecified arm
    7. S56.8 Injury of other muscles, fascia and tendons at forearm level

      1. S56.80 Unspecified injury of other muscles, fascia and tendons at forearm level

        • S56.801 Unspecified injury of other muscles, fascia and tendons at forearm level, right arm
        • S56.802 Unspecified injury of other muscles, fascia and tendons at forearm level, left arm
        • S56.809 Unspecified injury of other muscles, fascia and tendons at forearm level, unspecified arm
      2. S56.81 Strain of other muscles, fascia and tendons at forearm level

        • S56.811 Strain of other muscles, fascia and tendons at forearm level, right arm
        • S56.812 Strain of other muscles, fascia and tendons at forearm level, left arm
        • S56.819 Strain of other muscles, fascia and tendons at forearm level, unspecified arm
      3. S56.82 Laceration of other muscles, fascia and tendons at forearm level

        • S56.821 Laceration of other muscles, fascia and tendons at forearm level, right arm
        • S56.822 Laceration of other muscles, fascia and tendons at forearm level, left arm
        • S56.829 Laceration of other muscles, fascia and tendons at forearm level, unspecified arm
      4. S56.89 Other injury of other muscles, fascia and tendons at forearm level

        • S56.891 Other injury of other muscles, fascia and tendons at forearm level, right arm
        • S56.892 Other injury of other muscles, fascia and tendons at forearm level, left arm
        • S56.899 Other injury of other muscles, fascia and tendons at forearm level, unspecified arm
    8. S56.9 Injury of unspecified muscles, fascia and tendons at forearm level

      1. S56.90 Unspecified injury of unspecified muscles, fascia and tendons at forearm level

        • S56.901 Unspecified injury of unspecified muscles, fascia and tendons at forearm level, right arm
        • S56.902 Unspecified injury of unspecified muscles, fascia and tendons at forearm level, left arm
        • S56.909 Unspecified injury of unspecified muscles, fascia and tendons at forearm level, unspecified arm
      2. S56.91 Strain of unspecified muscles, fascia and tendons at forearm level

        • S56.911 Strain of unspecified muscles, fascia and tendons at forearm level, right arm
        • S56.912 Strain of unspecified muscles, fascia and tendons at forearm level, left arm
        • S56.919 Strain of unspecified muscles, fascia and tendons at forearm level, unspecified arm
      3. S56.92 Laceration of unspecified muscles, fascia and tendons at forearm level

        • S56.921 Laceration of unspecified muscles, fascia and tendons at forearm level, right arm
        • S56.922 Laceration of unspecified muscles, fascia and tendons at forearm level, left arm
        • S56.929 Laceration of unspecified muscles, fascia and tendons at forearm level, unspecified arm
      4. S56.99 Other injury of unspecified muscles, fascia and tendons at forearm level

        • S56.991 Other injury of unspecified muscles, fascia and tendons at forearm level, right arm
        • S56.992 Other injury of unspecified muscles, fascia and tendons at forearm level, left arm
        • S56.999 Other injury of unspecified muscles, fascia and tendons at forearm level, unspecified arm
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.