Includes:

  • injuries of breast
  • injuries of chest (wall)
  • injuries of interscapular area

Excludes2

  • burns and corrosions (T20-T32)
  • effects of foreign body in bronchus (T17.5)
  • effects of foreign body in esophagus (T18.1)
  • effects of foreign body in lung (T17.8)
  • effects of foreign body in trachea (T17.4)
  • frostbite (T33-T34)
  • injuries of axilla
  • injuries of clavicle
  • injuries of scapular region
  • injuries of shoulder
  • insect bite or sting, venomous (T63.4)
  1. S21 Open wound of thorax

    Excludes1

    • traumatic amputation (partial) of thorax (S28.1)

    The appropriate 7th character is to be added to each code from category S21

    • A - initial encounter
    • D - subsequent encounter
    • S - sequela
    1. S21.0 Open wound of breast

      1. S21.00 Unspecified open wound of breast

        • S21.001 Unspecified open wound of right breast
        • S21.002 Unspecified open wound of left breast
        • S21.009 Unspecified open wound of unspecified breast
      2. S21.01 Laceration without foreign body of breast

        • S21.011 Laceration without foreign body of right breast
        • S21.012 Laceration without foreign body of left breast
        • S21.019 Laceration without foreign body of unspecified breast
      3. S21.02 Laceration with foreign body of breast

        • S21.021 Laceration with foreign body of right breast
        • S21.022 Laceration with foreign body of left breast
        • S21.029 Laceration with foreign body of unspecified breast
      4. S21.03 Puncture wound without foreign body of breast

        • S21.031 Puncture wound without foreign body of right breast
        • S21.032 Puncture wound without foreign body of left breast
        • S21.039 Puncture wound without foreign body of unspecified breast
      5. S21.04 Puncture wound with foreign body of breast

        • S21.041 Puncture wound with foreign body of right breast
        • S21.042 Puncture wound with foreign body of left breast
        • S21.049 Puncture wound with foreign body of unspecified breast
      6. S21.05 Open bite of breast

        Inclusion term(s):

        • Bite of breast NOS
        • S21.051 Open bite of right breast
        • S21.052 Open bite of left breast
        • S21.059 Open bite of unspecified breast
    2. S21.1 Open wound of front wall of thorax without penetration into thoracic cavity

      Inclusion term(s):

      • Open wound of chest without penetration into thoracic cavity
      1. S21.10 Unspecified open wound of front wall of thorax without penetration into thoracic cavity

        • S21.101 Unspecified open wound of right front wall of thorax without penetration into thoracic cavity
        • S21.102 Unspecified open wound of left front wall of thorax without penetration into thoracic cavity
        • S21.109 Unspecified open wound of unspecified front wall of thorax without penetration into thoracic cavity
      2. S21.11 Laceration without foreign body of front wall of thorax without penetration into thoracic cavity

        • S21.111 Laceration without foreign body of right front wall of thorax without penetration into thoracic cavity
        • S21.112 Laceration without foreign body of left front wall of thorax without penetration into thoracic cavity
        • S21.119 Laceration without foreign body of unspecified front wall of thorax without penetration into thoracic cavity
      3. S21.12 Laceration with foreign body of front wall of thorax without penetration into thoracic cavity

        • S21.121 Laceration with foreign body of right front wall of thorax without penetration into thoracic cavity
        • S21.122 Laceration with foreign body of left front wall of thorax without penetration into thoracic cavity
        • S21.129 Laceration with foreign body of unspecified front wall of thorax without penetration into thoracic cavity
      4. S21.13 Puncture wound without foreign body of front wall of thorax without penetration into thoracic cavity

        • S21.131 Puncture wound without foreign body of right front wall of thorax without penetration into thoracic cavity
        • S21.132 Puncture wound without foreign body of left front wall of thorax without penetration into thoracic cavity
        • S21.139 Puncture wound without foreign body of unspecified front wall of thorax without penetration into thoracic cavity
      5. S21.14 Puncture wound with foreign body of front wall of thorax without penetration into thoracic cavity

        • S21.141 Puncture wound with foreign body of right front wall of thorax without penetration into thoracic cavity
        • S21.142 Puncture wound with foreign body of left front wall of thorax without penetration into thoracic cavity
        • S21.149 Puncture wound with foreign body of unspecified front wall of thorax without penetration into thoracic cavity
      6. S21.15 Open bite of front wall of thorax without penetration into thoracic cavity

        Inclusion term(s):

        • Bite of front wall of thorax NOS
        • S21.151 Open bite of right front wall of thorax without penetration into thoracic cavity
        • S21.152 Open bite of left front wall of thorax without penetration into thoracic cavity
        • S21.159 Open bite of unspecified front wall of thorax without penetration into thoracic cavity
    3. S21.2 Open wound of back wall of thorax without penetration into thoracic cavity

      1. S21.20 Unspecified open wound of back wall of thorax without penetration into thoracic cavity

        • S21.201 Unspecified open wound of right back wall of thorax without penetration into thoracic cavity
        • S21.202 Unspecified open wound of left back wall of thorax without penetration into thoracic cavity
        • S21.209 Unspecified open wound of unspecified back wall of thorax without penetration into thoracic cavity
      2. S21.21 Laceration without foreign body of back wall of thorax without penetration into thoracic cavity

        • S21.211 Laceration without foreign body of right back wall of thorax without penetration into thoracic cavity
        • S21.212 Laceration without foreign body of left back wall of thorax without penetration into thoracic cavity
        • S21.219 Laceration without foreign body of unspecified back wall of thorax without penetration into thoracic cavity
      3. S21.22 Laceration with foreign body of back wall of thorax without penetration into thoracic cavity

        • S21.221 Laceration with foreign body of right back wall of thorax without penetration into thoracic cavity
        • S21.222 Laceration with foreign body of left back wall of thorax without penetration into thoracic cavity
        • S21.229 Laceration with foreign body of unspecified back wall of thorax without penetration into thoracic cavity
      4. S21.23 Puncture wound without foreign body of back wall of thorax without penetration into thoracic cavity

        • S21.231 Puncture wound without foreign body of right back wall of thorax without penetration into thoracic cavity
        • S21.232 Puncture wound without foreign body of left back wall of thorax without penetration into thoracic cavity
        • S21.239 Puncture wound without foreign body of unspecified back wall of thorax without penetration into thoracic cavity
      5. S21.24 Puncture wound with foreign body of back wall of thorax without penetration into thoracic cavity

        • S21.241 Puncture wound with foreign body of right back wall of thorax without penetration into thoracic cavity
        • S21.242 Puncture wound with foreign body of left back wall of thorax without penetration into thoracic cavity
        • S21.249 Puncture wound with foreign body of unspecified back wall of thorax without penetration into thoracic cavity
      6. S21.25 Open bite of back wall of thorax without penetration into thoracic cavity

        Inclusion term(s):

        • Bite of back wall of thorax NOS
        • S21.251 Open bite of right back wall of thorax without penetration into thoracic cavity
        • S21.252 Open bite of left back wall of thorax without penetration into thoracic cavity
        • S21.259 Open bite of unspecified back wall of thorax without penetration into thoracic cavity
    4. S21.3 Open wound of front wall of thorax with penetration into thoracic cavity

      Inclusion term(s):

      • Open wound of chest with penetration into thoracic cavity
      1. S21.30 Unspecified open wound of front wall of thorax with penetration into thoracic cavity

        • S21.301 Unspecified open wound of right front wall of thorax with penetration into thoracic cavity
        • S21.302 Unspecified open wound of left front wall of thorax with penetration into thoracic cavity
        • S21.309 Unspecified open wound of unspecified front wall of thorax with penetration into thoracic cavity
      2. S21.31 Laceration without foreign body of front wall of thorax with penetration into thoracic cavity

        • S21.311 Laceration without foreign body of right front wall of thorax with penetration into thoracic cavity
        • S21.312 Laceration without foreign body of left front wall of thorax with penetration into thoracic cavity
        • S21.319 Laceration without foreign body of unspecified front wall of thorax with penetration into thoracic cavity
      3. S21.32 Laceration with foreign body of front wall of thorax with penetration into thoracic cavity

        • S21.321 Laceration with foreign body of right front wall of thorax with penetration into thoracic cavity
        • S21.322 Laceration with foreign body of left front wall of thorax with penetration into thoracic cavity
        • S21.329 Laceration with foreign body of unspecified front wall of thorax with penetration into thoracic cavity
      4. S21.33 Puncture wound without foreign body of front wall of thorax with penetration into thoracic cavity

        • S21.331 Puncture wound without foreign body of right front wall of thorax with penetration into thoracic cavity
        • S21.332 Puncture wound without foreign body of left front wall of thorax with penetration into thoracic cavity
        • S21.339 Puncture wound without foreign body of unspecified front wall of thorax with penetration into thoracic cavity
      5. S21.34 Puncture wound with foreign body of front wall of thorax with penetration into thoracic cavity

        • S21.341 Puncture wound with foreign body of right front wall of thorax with penetration into thoracic cavity
        • S21.342 Puncture wound with foreign body of left front wall of thorax with penetration into thoracic cavity
        • S21.349 Puncture wound with foreign body of unspecified front wall of thorax with penetration into thoracic cavity
      6. S21.35 Open bite of front wall of thorax with penetration into thoracic cavity

        • S21.351 Open bite of right front wall of thorax with penetration into thoracic cavity
        • S21.352 Open bite of left front wall of thorax with penetration into thoracic cavity
        • S21.359 Open bite of unspecified front wall of thorax with penetration into thoracic cavity
    5. S21.4 Open wound of back wall of thorax with penetration into thoracic cavity

      1. S21.40 Unspecified open wound of back wall of thorax with penetration into thoracic cavity

        • S21.401 Unspecified open wound of right back wall of thorax with penetration into thoracic cavity
        • S21.402 Unspecified open wound of left back wall of thorax with penetration into thoracic cavity
        • S21.409 Unspecified open wound of unspecified back wall of thorax with penetration into thoracic cavity
      2. S21.41 Laceration without foreign body of back wall of thorax with penetration into thoracic cavity

        • S21.411 Laceration without foreign body of right back wall of thorax with penetration into thoracic cavity
        • S21.412 Laceration without foreign body of left back wall of thorax with penetration into thoracic cavity
        • S21.419 Laceration without foreign body of unspecified back wall of thorax with penetration into thoracic cavity
      3. S21.42 Laceration with foreign body of back wall of thorax with penetration into thoracic cavity

        • S21.421 Laceration with foreign body of right back wall of thorax with penetration into thoracic cavity
        • S21.422 Laceration with foreign body of left back wall of thorax with penetration into thoracic cavity
        • S21.429 Laceration with foreign body of unspecified back wall of thorax with penetration into thoracic cavity
      4. S21.43 Puncture wound without foreign body of back wall of thorax with penetration into thoracic cavity

        • S21.431 Puncture wound without foreign body of right back wall of thorax with penetration into thoracic cavity
        • S21.432 Puncture wound without foreign body of left back wall of thorax with penetration into thoracic cavity
        • S21.439 Puncture wound without foreign body of unspecified back wall of thorax with penetration into thoracic cavity
      5. S21.44 Puncture wound with foreign body of back wall of thorax with penetration into thoracic cavity

        • S21.441 Puncture wound with foreign body of right back wall of thorax with penetration into thoracic cavity
        • S21.442 Puncture wound with foreign body of left back wall of thorax with penetration into thoracic cavity
        • S21.449 Puncture wound with foreign body of unspecified back wall of thorax with penetration into thoracic cavity
      6. S21.45 Open bite of back wall of thorax with penetration into thoracic cavity

        Inclusion term(s):

        • Bite of back wall of thorax NOS
        • S21.451 Open bite of right back wall of thorax with penetration into thoracic cavity
        • S21.452 Open bite of left back wall of thorax with penetration into thoracic cavity
        • S21.459 Open bite of unspecified back wall of thorax with penetration into thoracic cavity
    6. S21.9 Open wound of unspecified part of thorax

      Inclusion term(s):

      • Open wound of thoracic wall NOS
      1. S21.90 Unspecified open wound of unspecified part of thorax

      2. S21.91 Laceration without foreign body of unspecified part of thorax

      3. S21.92 Laceration with foreign body of unspecified part of thorax

      4. S21.93 Puncture wound without foreign body of unspecified part of thorax

      5. S21.94 Puncture wound with foreign body of unspecified part of thorax

      6. S21.95 Open bite of unspecified part of thorax

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.