Excludes2

  • burns and corrosions (T20-T32)
  • frostbite (T33-T34)
  • insect bite or sting, venomous (T63.4)
  1. S66 Injury of muscle, fascia and tendon at wrist and hand level

    Excludes2

    • sprain of joints and ligaments of wrist and hand (S63.-)

    The appropriate 7th character is to be added to each code from category S66

    • A - initial encounter
    • D - subsequent encounter
    • S - sequela
    1. S66.0 Injury of long flexor muscle, fascia and tendon of thumb at wrist and hand level

      1. S66.00 Unspecified injury of long flexor muscle, fascia and tendon of thumb at wrist and hand level

        • S66.001 Unspecified injury of long flexor muscle, fascia and tendon of right thumb at wrist and hand level
        • S66.002 Unspecified injury of long flexor muscle, fascia and tendon of left thumb at wrist and hand level
        • S66.009 Unspecified injury of long flexor muscle, fascia and tendon of unspecified thumb at wrist and hand level
      2. S66.01 Strain of long flexor muscle, fascia and tendon of thumb at wrist and hand level

        • S66.011 Strain of long flexor muscle, fascia and tendon of right thumb at wrist and hand level
        • S66.012 Strain of long flexor muscle, fascia and tendon of left thumb at wrist and hand level
        • S66.019 Strain of long flexor muscle, fascia and tendon of unspecified thumb at wrist and hand level
      3. S66.02 Laceration of long flexor muscle, fascia and tendon of thumb at wrist and hand level

        • S66.021 Laceration of long flexor muscle, fascia and tendon of right thumb at wrist and hand level
        • S66.022 Laceration of long flexor muscle, fascia and tendon of left thumb at wrist and hand level
        • S66.029 Laceration of long flexor muscle, fascia and tendon of unspecified thumb at wrist and hand level
      4. S66.09 Other specified injury of long flexor muscle, fascia and tendon of thumb at wrist and hand level

        • S66.091 Other specified injury of long flexor muscle, fascia and tendon of right thumb at wrist and hand level
        • S66.092 Other specified injury of long flexor muscle, fascia and tendon of left thumb at wrist and hand level
        • S66.099 Other specified injury of long flexor muscle, fascia and tendon of unspecified thumb at wrist and hand level
    2. S66.1 Injury of flexor muscle, fascia and tendon of other and unspecified finger at wrist and hand level

      1. S66.10 Unspecified injury of flexor muscle, fascia and tendon of other and unspecified finger at wrist and hand level

        • S66.100 Unspecified injury of flexor muscle, fascia and tendon of right index finger at wrist and hand level
        • S66.101 Unspecified injury of flexor muscle, fascia and tendon of left index finger at wrist and hand level
        • S66.102 Unspecified injury of flexor muscle, fascia and tendon of right middle finger at wrist and hand level
        • S66.103 Unspecified injury of flexor muscle, fascia and tendon of left middle finger at wrist and hand level
        • S66.104 Unspecified injury of flexor muscle, fascia and tendon of right ring finger at wrist and hand level
        • S66.105 Unspecified injury of flexor muscle, fascia and tendon of left ring finger at wrist and hand level
        • S66.106 Unspecified injury of flexor muscle, fascia and tendon of right little finger at wrist and hand level
        • S66.107 Unspecified injury of flexor muscle, fascia and tendon of left little finger at wrist and hand level
        • S66.108 Unspecified injury of flexor muscle, fascia and tendon of other finger at wrist and hand level

          Inclusion term(s):

          • Unspecified injury of flexor muscle, fascia and tendon of specified finger with unspecified laterality at wrist and hand level
        • S66.109 Unspecified injury of flexor muscle, fascia and tendon of unspecified finger at wrist and hand level
      2. S66.11 Strain of flexor muscle, fascia and tendon of other and unspecified finger at wrist and hand level

        • S66.110 Strain of flexor muscle, fascia and tendon of right index finger at wrist and hand level
        • S66.111 Strain of flexor muscle, fascia and tendon of left index finger at wrist and hand level
        • S66.112 Strain of flexor muscle, fascia and tendon of right middle finger at wrist and hand level
        • S66.113 Strain of flexor muscle, fascia and tendon of left middle finger at wrist and hand level
        • S66.114 Strain of flexor muscle, fascia and tendon of right ring finger at wrist and hand level
        • S66.115 Strain of flexor muscle, fascia and tendon of left ring finger at wrist and hand level
        • S66.116 Strain of flexor muscle, fascia and tendon of right little finger at wrist and hand level
        • S66.117 Strain of flexor muscle, fascia and tendon of left little finger at wrist and hand level
        • S66.118 Strain of flexor muscle, fascia and tendon of other finger at wrist and hand level

          Inclusion term(s):

          • Strain of flexor muscle, fascia and tendon of specified finger with unspecified laterality at wrist and hand level
        • S66.119 Strain of flexor muscle, fascia and tendon of unspecified finger at wrist and hand level
      3. S66.12 Laceration of flexor muscle, fascia and tendon of other and unspecified finger at wrist and hand level

        • S66.120 Laceration of flexor muscle, fascia and tendon of right index finger at wrist and hand level
        • S66.121 Laceration of flexor muscle, fascia and tendon of left index finger at wrist and hand level
        • S66.122 Laceration of flexor muscle, fascia and tendon of right middle finger at wrist and hand level
        • S66.123 Laceration of flexor muscle, fascia and tendon of left middle finger at wrist and hand level
        • S66.124 Laceration of flexor muscle, fascia and tendon of right ring finger at wrist and hand level
        • S66.125 Laceration of flexor muscle, fascia and tendon of left ring finger at wrist and hand level
        • S66.126 Laceration of flexor muscle, fascia and tendon of right little finger at wrist and hand level
        • S66.127 Laceration of flexor muscle, fascia and tendon of left little finger at wrist and hand level
        • S66.128 Laceration of flexor muscle, fascia and tendon of other finger at wrist and hand level

          Inclusion term(s):

          • Laceration of flexor muscle, fascia and tendon of specified finger with unspecified laterality at wrist and hand level
        • S66.129 Laceration of flexor muscle, fascia and tendon of unspecified finger at wrist and hand level
      4. S66.19 Other injury of flexor muscle, fascia and tendon of other and unspecified finger at wrist and hand level

        • S66.190 Other injury of flexor muscle, fascia and tendon of right index finger at wrist and hand level
        • S66.191 Other injury of flexor muscle, fascia and tendon of left index finger at wrist and hand level
        • S66.192 Other injury of flexor muscle, fascia and tendon of right middle finger at wrist and hand level
        • S66.193 Other injury of flexor muscle, fascia and tendon of left middle finger at wrist and hand level
        • S66.194 Other injury of flexor muscle, fascia and tendon of right ring finger at wrist and hand level
        • S66.195 Other injury of flexor muscle, fascia and tendon of left ring finger at wrist and hand level
        • S66.196 Other injury of flexor muscle, fascia and tendon of right little finger at wrist and hand level
        • S66.197 Other injury of flexor muscle, fascia and tendon of left little finger at wrist and hand level
        • S66.198 Other injury of flexor muscle, fascia and tendon of other finger at wrist and hand level

          Inclusion term(s):

          • Other injury of flexor muscle, fascia and tendon of specified finger with unspecified laterality at wrist and hand level
        • S66.199 Other injury of flexor muscle, fascia and tendon of unspecified finger at wrist and hand level
    3. S66.2 Injury of extensor muscle, fascia and tendon of thumb at wrist and hand level

      1. S66.20 Unspecified injury of extensor muscle, fascia and tendon of thumb at wrist and hand level

        • S66.201 Unspecified injury of extensor muscle, fascia and tendon of right thumb at wrist and hand level
        • S66.202 Unspecified injury of extensor muscle, fascia and tendon of left thumb at wrist and hand level
        • S66.209 Unspecified injury of extensor muscle, fascia and tendon of unspecified thumb at wrist and hand level
      2. S66.21 Strain of extensor muscle, fascia and tendon of thumb at wrist and hand level

        • S66.211 Strain of extensor muscle, fascia and tendon of right thumb at wrist and hand level
        • S66.212 Strain of extensor muscle, fascia and tendon of left thumb at wrist and hand level
        • S66.219 Strain of extensor muscle, fascia and tendon of unspecified thumb at wrist and hand level
      3. S66.22 Laceration of extensor muscle, fascia and tendon of thumb at wrist and hand level

        • S66.221 Laceration of extensor muscle, fascia and tendon of right thumb at wrist and hand level
        • S66.222 Laceration of extensor muscle, fascia and tendon of left thumb at wrist and hand level
        • S66.229 Laceration of extensor muscle, fascia and tendon of unspecified thumb at wrist and hand level
      4. S66.29 Other specified injury of extensor muscle, fascia and tendon of thumb at wrist and hand level

        • S66.291 Other specified injury of extensor muscle, fascia and tendon of right thumb at wrist and hand level
        • S66.292 Other specified injury of extensor muscle, fascia and tendon of left thumb at wrist and hand level
        • S66.299 Other specified injury of extensor muscle, fascia and tendon of unspecified thumb at wrist and hand level
    4. S66.3 Injury of extensor muscle, fascia and tendon of other and unspecified finger at wrist and hand level

      1. S66.30 Unspecified injury of extensor muscle, fascia and tendon of other and unspecified finger at wrist and hand level

        • S66.300 Unspecified injury of extensor muscle, fascia and tendon of right index finger at wrist and hand level
        • S66.301 Unspecified injury of extensor muscle, fascia and tendon of left index finger at wrist and hand level
        • S66.302 Unspecified injury of extensor muscle, fascia and tendon of right middle finger at wrist and hand level
        • S66.303 Unspecified injury of extensor muscle, fascia and tendon of left middle finger at wrist and hand level
        • S66.304 Unspecified injury of extensor muscle, fascia and tendon of right ring finger at wrist and hand level
        • S66.305 Unspecified injury of extensor muscle, fascia and tendon of left ring finger at wrist and hand level
        • S66.306 Unspecified injury of extensor muscle, fascia and tendon of right little finger at wrist and hand level
        • S66.307 Unspecified injury of extensor muscle, fascia and tendon of left little finger at wrist and hand level
        • S66.308 Unspecified injury of extensor muscle, fascia and tendon of other finger at wrist and hand level

          Inclusion term(s):

          • Unspecified injury of extensor muscle, fascia and tendon of specified finger with unspecified laterality at wrist and hand level
        • S66.309 Unspecified injury of extensor muscle, fascia and tendon of unspecified finger at wrist and hand level
      2. S66.31 Strain of extensor muscle, fascia and tendon of other and unspecified finger at wrist and hand level

        • S66.310 Strain of extensor muscle, fascia and tendon of right index finger at wrist and hand level
        • S66.311 Strain of extensor muscle, fascia and tendon of left index finger at wrist and hand level
        • S66.312 Strain of extensor muscle, fascia and tendon of right middle finger at wrist and hand level
        • S66.313 Strain of extensor muscle, fascia and tendon of left middle finger at wrist and hand level
        • S66.314 Strain of extensor muscle, fascia and tendon of right ring finger at wrist and hand level
        • S66.315 Strain of extensor muscle, fascia and tendon of left ring finger at wrist and hand level
        • S66.316 Strain of extensor muscle, fascia and tendon of right little finger at wrist and hand level
        • S66.317 Strain of extensor muscle, fascia and tendon of left little finger at wrist and hand level
        • S66.318 Strain of extensor muscle, fascia and tendon of other finger at wrist and hand level

          Inclusion term(s):

          • Strain of extensor muscle, fascia and tendon of specified finger with unspecified laterality at wrist and hand level
        • S66.319 Strain of extensor muscle, fascia and tendon of unspecified finger at wrist and hand level
      3. S66.32 Laceration of extensor muscle, fascia and tendon of other and unspecified finger at wrist and hand level

        • S66.320 Laceration of extensor muscle, fascia and tendon of right index finger at wrist and hand level
        • S66.321 Laceration of extensor muscle, fascia and tendon of left index finger at wrist and hand level
        • S66.322 Laceration of extensor muscle, fascia and tendon of right middle finger at wrist and hand level
        • S66.323 Laceration of extensor muscle, fascia and tendon of left middle finger at wrist and hand level
        • S66.324 Laceration of extensor muscle, fascia and tendon of right ring finger at wrist and hand level
        • S66.325 Laceration of extensor muscle, fascia and tendon of left ring finger at wrist and hand level
        • S66.326 Laceration of extensor muscle, fascia and tendon of right little finger at wrist and hand level
        • S66.327 Laceration of extensor muscle, fascia and tendon of left little finger at wrist and hand level
        • S66.328 Laceration of extensor muscle, fascia and tendon of other finger at wrist and hand level

          Inclusion term(s):

          • Laceration of extensor muscle, fascia and tendon of specified finger with unspecified laterality at wrist and hand level
        • S66.329 Laceration of extensor muscle, fascia and tendon of unspecified finger at wrist and hand level
      4. S66.39 Other injury of extensor muscle, fascia and tendon of other and unspecified finger at wrist and hand level

        • S66.390 Other injury of extensor muscle, fascia and tendon of right index finger at wrist and hand level
        • S66.391 Other injury of extensor muscle, fascia and tendon of left index finger at wrist and hand level
        • S66.392 Other injury of extensor muscle, fascia and tendon of right middle finger at wrist and hand level
        • S66.393 Other injury of extensor muscle, fascia and tendon of left middle finger at wrist and hand level
        • S66.394 Other injury of extensor muscle, fascia and tendon of right ring finger at wrist and hand level
        • S66.395 Other injury of extensor muscle, fascia and tendon of left ring finger at wrist and hand level
        • S66.396 Other injury of extensor muscle, fascia and tendon of right little finger at wrist and hand level
        • S66.397 Other injury of extensor muscle, fascia and tendon of left little finger at wrist and hand level
        • S66.398 Other injury of extensor muscle, fascia and tendon of other finger at wrist and hand level

          Inclusion term(s):

          • Other injury of extensor muscle, fascia and tendon of specified finger with unspecified laterality at wrist and hand level
        • S66.399 Other injury of extensor muscle, fascia and tendon of unspecified finger at wrist and hand level
    5. S66.4 Injury of intrinsic muscle, fascia and tendon of thumb at wrist and hand level

      1. S66.40 Unspecified injury of intrinsic muscle, fascia and tendon of thumb at wrist and hand level

        • S66.401 Unspecified injury of intrinsic muscle, fascia and tendon of right thumb at wrist and hand level
        • S66.402 Unspecified injury of intrinsic muscle, fascia and tendon of left thumb at wrist and hand level
        • S66.409 Unspecified injury of intrinsic muscle, fascia and tendon of unspecified thumb at wrist and hand level
      2. S66.41 Strain of intrinsic muscle, fascia and tendon of thumb at wrist and hand level

        • S66.411 Strain of intrinsic muscle, fascia and tendon of right thumb at wrist and hand level
        • S66.412 Strain of intrinsic muscle, fascia and tendon of left thumb at wrist and hand level
        • S66.419 Strain of intrinsic muscle, fascia and tendon of unspecified thumb at wrist and hand level
      3. S66.42 Laceration of intrinsic muscle, fascia and tendon of thumb at wrist and hand level

        • S66.421 Laceration of intrinsic muscle, fascia and tendon of right thumb at wrist and hand level
        • S66.422 Laceration of intrinsic muscle, fascia and tendon of left thumb at wrist and hand level
        • S66.429 Laceration of intrinsic muscle, fascia and tendon of unspecified thumb at wrist and hand level
      4. S66.49 Other specified injury of intrinsic muscle, fascia and tendon of thumb at wrist and hand level

        • S66.491 Other specified injury of intrinsic muscle, fascia and tendon of right thumb at wrist and hand level
        • S66.492 Other specified injury of intrinsic muscle, fascia and tendon of left thumb at wrist and hand level
        • S66.499 Other specified injury of intrinsic muscle, fascia and tendon of unspecified thumb at wrist and hand level
    6. S66.5 Injury of intrinsic muscle, fascia and tendon of other and unspecified finger at wrist and hand level

      1. S66.50 Unspecified injury of intrinsic muscle, fascia and tendon of other and unspecified finger at wrist and hand level

        • S66.500 Unspecified injury of intrinsic muscle, fascia and tendon of right index finger at wrist and hand level
        • S66.501 Unspecified injury of intrinsic muscle, fascia and tendon of left index finger at wrist and hand level
        • S66.502 Unspecified injury of intrinsic muscle, fascia and tendon of right middle finger at wrist and hand level
        • S66.503 Unspecified injury of intrinsic muscle, fascia and tendon of left middle finger at wrist and hand level
        • S66.504 Unspecified injury of intrinsic muscle, fascia and tendon of right ring finger at wrist and hand level
        • S66.505 Unspecified injury of intrinsic muscle, fascia and tendon of left ring finger at wrist and hand level
        • S66.506 Unspecified injury of intrinsic muscle, fascia and tendon of right little finger at wrist and hand level
        • S66.507 Unspecified injury of intrinsic muscle, fascia and tendon of left little finger at wrist and hand level
        • S66.508 Unspecified injury of intrinsic muscle, fascia and tendon of other finger at wrist and hand level

          Inclusion term(s):

          • Unspecified injury of intrinsic muscle, fascia and tendon of specified finger with unspecified laterality at wrist and hand level
        • S66.509 Unspecified injury of intrinsic muscle, fascia and tendon of unspecified finger at wrist and hand level
      2. S66.51 Strain of intrinsic muscle, fascia and tendon of other and unspecified finger at wrist and hand level

        • S66.510 Strain of intrinsic muscle, fascia and tendon of right index finger at wrist and hand level
        • S66.511 Strain of intrinsic muscle, fascia and tendon of left index finger at wrist and hand level
        • S66.512 Strain of intrinsic muscle, fascia and tendon of right middle finger at wrist and hand level
        • S66.513 Strain of intrinsic muscle, fascia and tendon of left middle finger at wrist and hand level
        • S66.514 Strain of intrinsic muscle, fascia and tendon of right ring finger at wrist and hand level
        • S66.515 Strain of intrinsic muscle, fascia and tendon of left ring finger at wrist and hand level
        • S66.516 Strain of intrinsic muscle, fascia and tendon of right little finger at wrist and hand level
        • S66.517 Strain of intrinsic muscle, fascia and tendon of left little finger at wrist and hand level
        • S66.518 Strain of intrinsic muscle, fascia and tendon of other finger at wrist and hand level

          Inclusion term(s):

          • Strain of intrinsic muscle, fascia and tendon of specified finger with unspecified laterality at wrist and hand level
        • S66.519 Strain of intrinsic muscle, fascia and tendon of unspecified finger at wrist and hand level
      3. S66.52 Laceration of intrinsic muscle, fascia and tendon of other and unspecified finger at wrist and hand level

        • S66.520 Laceration of intrinsic muscle, fascia and tendon of right index finger at wrist and hand level
        • S66.521 Laceration of intrinsic muscle, fascia and tendon of left index finger at wrist and hand level
        • S66.522 Laceration of intrinsic muscle, fascia and tendon of right middle finger at wrist and hand level
        • S66.523 Laceration of intrinsic muscle, fascia and tendon of left middle finger at wrist and hand level
        • S66.524 Laceration of intrinsic muscle, fascia and tendon of right ring finger at wrist and hand level
        • S66.525 Laceration of intrinsic muscle, fascia and tendon of left ring finger at wrist and hand level
        • S66.526 Laceration of intrinsic muscle, fascia and tendon of right little finger at wrist and hand level
        • S66.527 Laceration of intrinsic muscle, fascia and tendon of left little finger at wrist and hand level
        • S66.528 Laceration of intrinsic muscle, fascia and tendon of other finger at wrist and hand level

          Inclusion term(s):

          • Laceration of intrinsic muscle, fascia and tendon of specified finger with unspecified laterality at wrist and hand level
        • S66.529 Laceration of intrinsic muscle, fascia and tendon of unspecified finger at wrist and hand level
      4. S66.59 Other injury of intrinsic muscle, fascia and tendon of other and unspecified finger at wrist and hand level

        • S66.590 Other injury of intrinsic muscle, fascia and tendon of right index finger at wrist and hand level
        • S66.591 Other injury of intrinsic muscle, fascia and tendon of left index finger at wrist and hand level
        • S66.592 Other injury of intrinsic muscle, fascia and tendon of right middle finger at wrist and hand level
        • S66.593 Other injury of intrinsic muscle, fascia and tendon of left middle finger at wrist and hand level
        • S66.594 Other injury of intrinsic muscle, fascia and tendon of right ring finger at wrist and hand level
        • S66.595 Other injury of intrinsic muscle, fascia and tendon of left ring finger at wrist and hand level
        • S66.596 Other injury of intrinsic muscle, fascia and tendon of right little finger at wrist and hand level
        • S66.597 Other injury of intrinsic muscle, fascia and tendon of left little finger at wrist and hand level
        • S66.598 Other injury of intrinsic muscle, fascia and tendon of other finger at wrist and hand level

          Inclusion term(s):

          • Other injury of intrinsic muscle, fascia and tendon of specified finger with unspecified laterality at wrist and hand level
        • S66.599 Other injury of intrinsic muscle, fascia and tendon of unspecified finger at wrist and hand level
    7. S66.8 Injury of other specified muscles, fascia and tendons at wrist and hand level

      1. S66.80 Unspecified injury of other specified muscles, fascia and tendons at wrist and hand level

        • S66.801 Unspecified injury of other specified muscles, fascia and tendons at wrist and hand level, right hand
        • S66.802 Unspecified injury of other specified muscles, fascia and tendons at wrist and hand level, left hand
        • S66.809 Unspecified injury of other specified muscles, fascia and tendons at wrist and hand level, unspecified hand
      2. S66.81 Strain of other specified muscles, fascia and tendons at wrist and hand level

        • S66.811 Strain of other specified muscles, fascia and tendons at wrist and hand level, right hand
        • S66.812 Strain of other specified muscles, fascia and tendons at wrist and hand level, left hand
        • S66.819 Strain of other specified muscles, fascia and tendons at wrist and hand level, unspecified hand
      3. S66.82 Laceration of other specified muscles, fascia and tendons at wrist and hand level

        • S66.821 Laceration of other specified muscles, fascia and tendons at wrist and hand level, right hand
        • S66.822 Laceration of other specified muscles, fascia and tendons at wrist and hand level, left hand
        • S66.829 Laceration of other specified muscles, fascia and tendons at wrist and hand level, unspecified hand
      4. S66.89 Other injury of other specified muscles, fascia and tendons at wrist and hand level

        • S66.891 Other injury of other specified muscles, fascia and tendons at wrist and hand level, right hand
        • S66.892 Other injury of other specified muscles, fascia and tendons at wrist and hand level, left hand
        • S66.899 Other injury of other specified muscles, fascia and tendons at wrist and hand level, unspecified hand
    8. S66.9 Injury of unspecified muscle, fascia and tendon at wrist and hand level

      1. S66.90 Unspecified injury of unspecified muscle, fascia and tendon at wrist and hand level

        • S66.901 Unspecified injury of unspecified muscle, fascia and tendon at wrist and hand level, right hand
        • S66.902 Unspecified injury of unspecified muscle, fascia and tendon at wrist and hand level, left hand
        • S66.909 Unspecified injury of unspecified muscle, fascia and tendon at wrist and hand level, unspecified hand
      2. S66.91 Strain of unspecified muscle, fascia and tendon at wrist and hand level

        • S66.911 Strain of unspecified muscle, fascia and tendon at wrist and hand level, right hand
        • S66.912 Strain of unspecified muscle, fascia and tendon at wrist and hand level, left hand
        • S66.919 Strain of unspecified muscle, fascia and tendon at wrist and hand level, unspecified hand
      3. S66.92 Laceration of unspecified muscle, fascia and tendon at wrist and hand level

        • S66.921 Laceration of unspecified muscle, fascia and tendon at wrist and hand level, right hand
        • S66.922 Laceration of unspecified muscle, fascia and tendon at wrist and hand level, left hand
        • S66.929 Laceration of unspecified muscle, fascia and tendon at wrist and hand level, unspecified hand
      4. S66.99 Other injury of unspecified muscle, fascia and tendon at wrist and hand level

        • S66.991 Other injury of unspecified muscle, fascia and tendon at wrist and hand level, right hand
        • S66.992 Other injury of unspecified muscle, fascia and tendon at wrist and hand level, left hand
        • S66.999 Other injury of unspecified muscle, fascia and tendon at wrist and hand level, unspecified hand
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.