Open wound of thorax (S21)

• Injury, poisoning and certain other consequences of external causes (S00–T88)

  • Injuries to the thorax (S20-S29)

    • Open wound of thorax (S21)

      • S21 Open wound of thorax

      • S21.0 Open wound of breast

      • S21.00 Unspecified open wound of breast

      • S21.001 Unspecified open wound of right breast

      • S21.001A Unspecified open wound of right breast, initial encounter
      • S21.001D Unspecified open wound of right breast, subsequent encounter
      • S21.001S Unspecified open wound of right breast, sequela

      • S21.002 Unspecified open wound of left breast

      • S21.002A Unspecified open wound of left breast, initial encounter
      • S21.002D Unspecified open wound of left breast, subsequent encounter
      • S21.002S Unspecified open wound of left breast, sequela

      • S21.009 Unspecified open wound of unspecified breast

      • S21.009A Unspecified open wound of unspecified breast, initial encounter
      • S21.009D Unspecified open wound of unspecified breast, subsequent encounter
      • S21.009S Unspecified open wound of unspecified breast, sequela

      • S21.01 Laceration without foreign body of breast

      • S21.011 Laceration without foreign body of right breast

      • S21.011A Laceration without foreign body of right breast, initial encounter
      • S21.011D Laceration without foreign body of right breast, subsequent encounter
      • S21.011S Laceration without foreign body of right breast, sequela

      • S21.012 Laceration without foreign body of left breast

      • S21.012A Laceration without foreign body of left breast, initial encounter
      • S21.012D Laceration without foreign body of left breast, subsequent encounter
      • S21.012S Laceration without foreign body of left breast, sequela

      • S21.019 Laceration without foreign body of unspecified breast

      • S21.019A Laceration without foreign body of unspecified breast, initial encounter
      • S21.019D Laceration without foreign body of unspecified breast, subsequent encounter
      • S21.019S Laceration without foreign body of unspecified breast, sequela

      • S21.02 Laceration with foreign body of breast

      • S21.021 Laceration with foreign body of right breast

      • S21.021A Laceration with foreign body of right breast, initial encounter
      • S21.021D Laceration with foreign body of right breast, subsequent encounter
      • S21.021S Laceration with foreign body of right breast, sequela

      • S21.022 Laceration with foreign body of left breast

      • S21.022A Laceration with foreign body of left breast, initial encounter
      • S21.022D Laceration with foreign body of left breast, subsequent encounter
      • S21.022S Laceration with foreign body of left breast, sequela

      • S21.029 Laceration with foreign body of unspecified breast

      • S21.029A Laceration with foreign body of unspecified breast, initial encounter
      • S21.029D Laceration with foreign body of unspecified breast, subsequent encounter
      • S21.029S Laceration with foreign body of unspecified breast, sequela

      • S21.03 Puncture wound without foreign body of breast

      • S21.031 Puncture wound without foreign body of right breast

      • S21.031A Puncture wound without foreign body of right breast, initial encounter
      • S21.031D Puncture wound without foreign body of right breast, subsequent encounter
      • S21.031S Puncture wound without foreign body of right breast, sequela

      • S21.032 Puncture wound without foreign body of left breast

      • S21.032A Puncture wound without foreign body of left breast, initial encounter
      • S21.032D Puncture wound without foreign body of left breast, subsequent encounter
      • S21.032S Puncture wound without foreign body of left breast, sequela

      • S21.039 Puncture wound without foreign body of unspecified breast

      • S21.039A Puncture wound without foreign body of unspecified breast, initial encounter
      • S21.039D Puncture wound without foreign body of unspecified breast, subsequent encounter
      • S21.039S Puncture wound without foreign body of unspecified breast, sequela

      • S21.04 Puncture wound with foreign body of breast

      • S21.041 Puncture wound with foreign body of right breast

      • S21.041A Puncture wound with foreign body of right breast, initial encounter
      • S21.041D Puncture wound with foreign body of right breast, subsequent encounter
      • S21.041S Puncture wound with foreign body of right breast, sequela

      • S21.042 Puncture wound with foreign body of left breast

      • S21.042A Puncture wound with foreign body of left breast, initial encounter
      • S21.042D Puncture wound with foreign body of left breast, subsequent encounter
      • S21.042S Puncture wound with foreign body of left breast, sequela

      • S21.049 Puncture wound with foreign body of unspecified breast

      • S21.049A Puncture wound with foreign body of unspecified breast, initial encounter
      • S21.049D Puncture wound with foreign body of unspecified breast, subsequent encounter
      • S21.049S Puncture wound with foreign body of unspecified breast, sequela

      • S21.05 Open bite of breast

      • S21.051 Open bite of right breast

      • S21.051A Open bite of right breast, initial encounter
      • S21.051D Open bite of right breast, subsequent encounter
      • S21.051S Open bite of right breast, sequela

      • S21.052 Open bite of left breast

      • S21.052A Open bite of left breast, initial encounter
      • S21.052D Open bite of left breast, subsequent encounter
      • S21.052S Open bite of left breast, sequela

      • S21.059 Open bite of unspecified breast

      • S21.059A Open bite of unspecified breast, initial encounter
      • S21.059D Open bite of unspecified breast, subsequent encounter
      • S21.059S Open bite of unspecified breast, sequela

      • S21.1 Open wound of front wall of thorax without penetration into thoracic cavity

      • 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

      • S21.101A Unspecified open wound of right front wall of thorax without penetration into thoracic cavity, initial encounter
      • S21.101D Unspecified open wound of right front wall of thorax without penetration into thoracic cavity, subsequent encounter
      • S21.101S Unspecified open wound of right front wall of thorax without penetration into thoracic cavity, sequela

      • S21.102 Unspecified open wound of left front wall of thorax without penetration into thoracic cavity

      • S21.102A Unspecified open wound of left front wall of thorax without penetration into thoracic cavity, initial encounter
      • S21.102D Unspecified open wound of left front wall of thorax without penetration into thoracic cavity, subsequent encounter
      • S21.102S Unspecified open wound of left front wall of thorax without penetration into thoracic cavity, sequela

      • S21.109 Unspecified open wound of unspecified front wall of thorax without penetration into thoracic cavity

      • S21.109A Unspecified open wound of unspecified front wall of thorax without penetration into thoracic cavity, initial encounter
      • S21.109D Unspecified open wound of unspecified front wall of thorax without penetration into thoracic cavity, subsequent encounter
      • S21.109S Unspecified open wound of unspecified front wall of thorax without penetration into thoracic cavity, sequela

      • 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

      • S21.111A Laceration without foreign body of right front wall of thorax without penetration into thoracic cavity, initial encounter
      • S21.111D Laceration without foreign body of right front wall of thorax without penetration into thoracic cavity, subsequent encounter
      • S21.111S Laceration without foreign body of right front wall of thorax without penetration into thoracic cavity, sequela

      • S21.112 Laceration without foreign body of left front wall of thorax without penetration into thoracic cavity

      • S21.112A Laceration without foreign body of left front wall of thorax without penetration into thoracic cavity, initial encounter
      • S21.112D Laceration without foreign body of left front wall of thorax without penetration into thoracic cavity, subsequent encounter
      • S21.112S Laceration without foreign body of left front wall of thorax without penetration into thoracic cavity, sequela

      • S21.119 Laceration without foreign body of unspecified front wall of thorax without penetration into thoracic cavity

      • S21.119A Laceration without foreign body of unspecified front wall of thorax without penetration into thoracic cavity, initial encounter
      • S21.119D Laceration without foreign body of unspecified front wall of thorax without penetration into thoracic cavity, subsequent encounter
      • S21.119S Laceration without foreign body of unspecified front wall of thorax without penetration into thoracic cavity, sequela

      • 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

      • S21.121A Laceration with foreign body of right front wall of thorax without penetration into thoracic cavity, initial encounter
      • S21.121D Laceration with foreign body of right front wall of thorax without penetration into thoracic cavity, subsequent encounter
      • S21.121S Laceration with foreign body of right front wall of thorax without penetration into thoracic cavity, sequela

      • S21.122 Laceration with foreign body of left front wall of thorax without penetration into thoracic cavity

      • S21.122A Laceration with foreign body of left front wall of thorax without penetration into thoracic cavity, initial encounter
      • S21.122D Laceration with foreign body of left front wall of thorax without penetration into thoracic cavity, subsequent encounter
      • S21.122S Laceration with foreign body of left front wall of thorax without penetration into thoracic cavity, sequela

      • S21.129 Laceration with foreign body of unspecified front wall of thorax without penetration into thoracic cavity

      • S21.129A Laceration with foreign body of unspecified front wall of thorax without penetration into thoracic cavity, initial encounter
      • S21.129D Laceration with foreign body of unspecified front wall of thorax without penetration into thoracic cavity, subsequent encounter
      • S21.129S Laceration with foreign body of unspecified front wall of thorax without penetration into thoracic cavity, sequela

      • 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

      • S21.131A Puncture wound without foreign body of right front wall of thorax without penetration into thoracic cavity, initial encounter
      • S21.131D Puncture wound without foreign body of right front wall of thorax without penetration into thoracic cavity, subsequent encounter
      • S21.131S Puncture wound without foreign body of right front wall of thorax without penetration into thoracic cavity, sequela

      • S21.132 Puncture wound without foreign body of left front wall of thorax without penetration into thoracic cavity

      • S21.132A Puncture wound without foreign body of left front wall of thorax without penetration into thoracic cavity, initial encounter
      • S21.132D Puncture wound without foreign body of left front wall of thorax without penetration into thoracic cavity, subsequent encounter
      • S21.132S Puncture wound without foreign body of left front wall of thorax without penetration into thoracic cavity, sequela

      • S21.139 Puncture wound without foreign body of unspecified front wall of thorax without penetration into thoracic cavity

      • S21.139A Puncture wound without foreign body of unspecified front wall of thorax without penetration into thoracic cavity, initial encounter
      • S21.139D Puncture wound without foreign body of unspecified front wall of thorax without penetration into thoracic cavity, subsequent encounter
      • S21.139S Puncture wound without foreign body of unspecified front wall of thorax without penetration into thoracic cavity, sequela

      • 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

      • S21.141A Puncture wound with foreign body of right front wall of thorax without penetration into thoracic cavity, initial encounter
      • S21.141D Puncture wound with foreign body of right front wall of thorax without penetration into thoracic cavity, subsequent encounter
      • S21.141S Puncture wound with foreign body of right front wall of thorax without penetration into thoracic cavity, sequela

      • S21.142 Puncture wound with foreign body of left front wall of thorax without penetration into thoracic cavity

      • S21.142A Puncture wound with foreign body of left front wall of thorax without penetration into thoracic cavity, initial encounter
      • S21.142D Puncture wound with foreign body of left front wall of thorax without penetration into thoracic cavity, subsequent encounter
      • S21.142S Puncture wound with foreign body of left front wall of thorax without penetration into thoracic cavity, sequela

      • S21.149 Puncture wound with foreign body of unspecified front wall of thorax without penetration into thoracic cavity

      • S21.149A Puncture wound with foreign body of unspecified front wall of thorax without penetration into thoracic cavity, initial encounter
      • S21.149D Puncture wound with foreign body of unspecified front wall of thorax without penetration into thoracic cavity, subsequent encounter
      • S21.149S Puncture wound with foreign body of unspecified front wall of thorax without penetration into thoracic cavity, sequela

      • S21.15 Open bite of front wall of thorax without penetration into thoracic cavity

      • S21.151 Open bite of right front wall of thorax without penetration into thoracic cavity

      • S21.151A Open bite of right front wall of thorax without penetration into thoracic cavity, initial encounter
      • S21.151D Open bite of right front wall of thorax without penetration into thoracic cavity, subsequent encounter
      • S21.151S Open bite of right front wall of thorax without penetration into thoracic cavity, sequela

      • S21.152 Open bite of left front wall of thorax without penetration into thoracic cavity

      • S21.152A Open bite of left front wall of thorax without penetration into thoracic cavity, initial encounter
      • S21.152D Open bite of left front wall of thorax without penetration into thoracic cavity, subsequent encounter
      • S21.152S Open bite of left front wall of thorax without penetration into thoracic cavity, sequela

      • S21.159 Open bite of unspecified front wall of thorax without penetration into thoracic cavity

      • S21.159A Open bite of unspecified front wall of thorax without penetration into thoracic cavity, initial encounter
      • S21.159D Open bite of unspecified front wall of thorax without penetration into thoracic cavity, subsequent encounter
      • S21.159S Open bite of unspecified front wall of thorax without penetration into thoracic cavity, sequela

      • S21.2 Open wound of back wall of thorax without penetration into thoracic cavity

      • 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

      • S21.201A Unspecified open wound of right back wall of thorax without penetration into thoracic cavity, initial encounter
      • S21.201D Unspecified open wound of right back wall of thorax without penetration into thoracic cavity, subsequent encounter
      • S21.201S Unspecified open wound of right back wall of thorax without penetration into thoracic cavity, sequela

      • S21.202 Unspecified open wound of left back wall of thorax without penetration into thoracic cavity

      • S21.202A Unspecified open wound of left back wall of thorax without penetration into thoracic cavity, initial encounter
      • S21.202D Unspecified open wound of left back wall of thorax without penetration into thoracic cavity, subsequent encounter
      • S21.202S Unspecified open wound of left back wall of thorax without penetration into thoracic cavity, sequela

      • S21.209 Unspecified open wound of unspecified back wall of thorax without penetration into thoracic cavity

      • S21.209A Unspecified open wound of unspecified back wall of thorax without penetration into thoracic cavity, initial encounter
      • S21.209D Unspecified open wound of unspecified back wall of thorax without penetration into thoracic cavity, subsequent encounter
      • S21.209S Unspecified open wound of unspecified back wall of thorax without penetration into thoracic cavity, sequela

      • 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

      • S21.211A Laceration without foreign body of right back wall of thorax without penetration into thoracic cavity, initial encounter
      • S21.211D Laceration without foreign body of right back wall of thorax without penetration into thoracic cavity, subsequent encounter
      • S21.211S Laceration without foreign body of right back wall of thorax without penetration into thoracic cavity, sequela

      • S21.212 Laceration without foreign body of left back wall of thorax without penetration into thoracic cavity

      • S21.212A Laceration without foreign body of left back wall of thorax without penetration into thoracic cavity, initial encounter
      • S21.212D Laceration without foreign body of left back wall of thorax without penetration into thoracic cavity, subsequent encounter
      • S21.212S Laceration without foreign body of left back wall of thorax without penetration into thoracic cavity, sequela

      • S21.219 Laceration without foreign body of unspecified back wall of thorax without penetration into thoracic cavity

      • S21.219A Laceration without foreign body of unspecified back wall of thorax without penetration into thoracic cavity, initial encounter
      • S21.219D Laceration without foreign body of unspecified back wall of thorax without penetration into thoracic cavity, subsequent encounter
      • S21.219S Laceration without foreign body of unspecified back wall of thorax without penetration into thoracic cavity, sequela

      • 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

      • S21.221A Laceration with foreign body of right back wall of thorax without penetration into thoracic cavity, initial encounter
      • S21.221D Laceration with foreign body of right back wall of thorax without penetration into thoracic cavity, subsequent encounter
      • S21.221S Laceration with foreign body of right back wall of thorax without penetration into thoracic cavity, sequela

      • S21.222 Laceration with foreign body of left back wall of thorax without penetration into thoracic cavity

      • S21.222A Laceration with foreign body of left back wall of thorax without penetration into thoracic cavity, initial encounter
      • S21.222D Laceration with foreign body of left back wall of thorax without penetration into thoracic cavity, subsequent encounter
      • S21.222S Laceration with foreign body of left back wall of thorax without penetration into thoracic cavity, sequela

      • S21.229 Laceration with foreign body of unspecified back wall of thorax without penetration into thoracic cavity

      • S21.229A Laceration with foreign body of unspecified back wall of thorax without penetration into thoracic cavity, initial encounter
      • S21.229D Laceration with foreign body of unspecified back wall of thorax without penetration into thoracic cavity, subsequent encounter
      • S21.229S Laceration with foreign body of unspecified back wall of thorax without penetration into thoracic cavity, sequela

      • 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

      • S21.231A Puncture wound without foreign body of right back wall of thorax without penetration into thoracic cavity, initial encounter
      • S21.231D Puncture wound without foreign body of right back wall of thorax without penetration into thoracic cavity, subsequent encounter
      • S21.231S Puncture wound without foreign body of right back wall of thorax without penetration into thoracic cavity, sequela

      • S21.232 Puncture wound without foreign body of left back wall of thorax without penetration into thoracic cavity

      • S21.232A Puncture wound without foreign body of left back wall of thorax without penetration into thoracic cavity, initial encounter
      • S21.232D Puncture wound without foreign body of left back wall of thorax without penetration into thoracic cavity, subsequent encounter
      • S21.232S Puncture wound without foreign body of left back wall of thorax without penetration into thoracic cavity, sequela

      • S21.239 Puncture wound without foreign body of unspecified back wall of thorax without penetration into thoracic cavity

      • S21.239A Puncture wound without foreign body of unspecified back wall of thorax without penetration into thoracic cavity, initial encounter
      • S21.239D Puncture wound without foreign body of unspecified back wall of thorax without penetration into thoracic cavity, subsequent encounter
      • S21.239S Puncture wound without foreign body of unspecified back wall of thorax without penetration into thoracic cavity, sequela

      • 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

      • S21.241A Puncture wound with foreign body of right back wall of thorax without penetration into thoracic cavity, initial encounter
      • S21.241D Puncture wound with foreign body of right back wall of thorax without penetration into thoracic cavity, subsequent encounter
      • S21.241S Puncture wound with foreign body of right back wall of thorax without penetration into thoracic cavity, sequela

      • S21.242 Puncture wound with foreign body of left back wall of thorax without penetration into thoracic cavity

      • S21.242A Puncture wound with foreign body of left back wall of thorax without penetration into thoracic cavity, initial encounter
      • S21.242D Puncture wound with foreign body of left back wall of thorax without penetration into thoracic cavity, subsequent encounter
      • S21.242S Puncture wound with foreign body of left back wall of thorax without penetration into thoracic cavity, sequela

      • S21.249 Puncture wound with foreign body of unspecified back wall of thorax without penetration into thoracic cavity

      • S21.249A Puncture wound with foreign body of unspecified back wall of thorax without penetration into thoracic cavity, initial encounter
      • S21.249D Puncture wound with foreign body of unspecified back wall of thorax without penetration into thoracic cavity, subsequent encounter
      • S21.249S Puncture wound with foreign body of unspecified back wall of thorax without penetration into thoracic cavity, sequela

      • S21.25 Open bite of back wall of thorax without penetration into thoracic cavity

      • S21.251 Open bite of right back wall of thorax without penetration into thoracic cavity

      • S21.251A Open bite of right back wall of thorax without penetration into thoracic cavity, initial encounter
      • S21.251D Open bite of right back wall of thorax without penetration into thoracic cavity, subsequent encounter
      • S21.251S Open bite of right back wall of thorax without penetration into thoracic cavity, sequela

      • S21.252 Open bite of left back wall of thorax without penetration into thoracic cavity

      • S21.252A Open bite of left back wall of thorax without penetration into thoracic cavity, initial encounter
      • S21.252D Open bite of left back wall of thorax without penetration into thoracic cavity, subsequent encounter
      • S21.252S Open bite of left back wall of thorax without penetration into thoracic cavity, sequela

      • S21.259 Open bite of unspecified back wall of thorax without penetration into thoracic cavity

      • S21.259A Open bite of unspecified back wall of thorax without penetration into thoracic cavity, initial encounter
      • S21.259D Open bite of unspecified back wall of thorax without penetration into thoracic cavity, subsequent encounter
      • S21.259S Open bite of unspecified back wall of thorax without penetration into thoracic cavity, sequela

      • S21.3 Open wound of front wall of thorax with penetration into thoracic cavity

      • 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

      • S21.301A Unspecified open wound of right front wall of thorax with penetration into thoracic cavity, initial encounter
      • S21.301D Unspecified open wound of right front wall of thorax with penetration into thoracic cavity, subsequent encounter
      • S21.301S Unspecified open wound of right front wall of thorax with penetration into thoracic cavity, sequela

      • S21.302 Unspecified open wound of left front wall of thorax with penetration into thoracic cavity

      • S21.302A Unspecified open wound of left front wall of thorax with penetration into thoracic cavity, initial encounter
      • S21.302D Unspecified open wound of left front wall of thorax with penetration into thoracic cavity, subsequent encounter
      • S21.302S Unspecified open wound of left front wall of thorax with penetration into thoracic cavity, sequela

      • S21.309 Unspecified open wound of unspecified front wall of thorax with penetration into thoracic cavity

      • S21.309A Unspecified open wound of unspecified front wall of thorax with penetration into thoracic cavity, initial encounter
      • S21.309D Unspecified open wound of unspecified front wall of thorax with penetration into thoracic cavity, subsequent encounter
      • S21.309S Unspecified open wound of unspecified front wall of thorax with penetration into thoracic cavity, sequela

      • 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

      • S21.311A Laceration without foreign body of right front wall of thorax with penetration into thoracic cavity, initial encounter
      • S21.311D Laceration without foreign body of right front wall of thorax with penetration into thoracic cavity, subsequent encounter
      • S21.311S Laceration without foreign body of right front wall of thorax with penetration into thoracic cavity, sequela

      • S21.312 Laceration without foreign body of left front wall of thorax with penetration into thoracic cavity

      • S21.312A Laceration without foreign body of left front wall of thorax with penetration into thoracic cavity, initial encounter
      • S21.312D Laceration without foreign body of left front wall of thorax with penetration into thoracic cavity, subsequent encounter
      • S21.312S Laceration without foreign body of left front wall of thorax with penetration into thoracic cavity, sequela

      • S21.319 Laceration without foreign body of unspecified front wall of thorax with penetration into thoracic cavity

      • S21.319A Laceration without foreign body of unspecified front wall of thorax with penetration into thoracic cavity, initial encounter
      • S21.319D Laceration without foreign body of unspecified front wall of thorax with penetration into thoracic cavity, subsequent encounter
      • S21.319S Laceration without foreign body of unspecified front wall of thorax with penetration into thoracic cavity, sequela

      • 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

      • S21.321A Laceration with foreign body of right front wall of thorax with penetration into thoracic cavity, initial encounter
      • S21.321D Laceration with foreign body of right front wall of thorax with penetration into thoracic cavity, subsequent encounter
      • S21.321S Laceration with foreign body of right front wall of thorax with penetration into thoracic cavity, sequela

      • S21.322 Laceration with foreign body of left front wall of thorax with penetration into thoracic cavity

      • S21.322A Laceration with foreign body of left front wall of thorax with penetration into thoracic cavity, initial encounter
      • S21.322D Laceration with foreign body of left front wall of thorax with penetration into thoracic cavity, subsequent encounter
      • S21.322S Laceration with foreign body of left front wall of thorax with penetration into thoracic cavity, sequela

      • S21.329 Laceration with foreign body of unspecified front wall of thorax with penetration into thoracic cavity

      • S21.329A Laceration with foreign body of unspecified front wall of thorax with penetration into thoracic cavity, initial encounter
      • S21.329D Laceration with foreign body of unspecified front wall of thorax with penetration into thoracic cavity, subsequent encounter
      • S21.329S Laceration with foreign body of unspecified front wall of thorax with penetration into thoracic cavity, sequela

      • 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

      • S21.331A Puncture wound without foreign body of right front wall of thorax with penetration into thoracic cavity, initial encounter
      • S21.331D Puncture wound without foreign body of right front wall of thorax with penetration into thoracic cavity, subsequent encounter
      • S21.331S Puncture wound without foreign body of right front wall of thorax with penetration into thoracic cavity, sequela

      • S21.332 Puncture wound without foreign body of left front wall of thorax with penetration into thoracic cavity

      • S21.332A Puncture wound without foreign body of left front wall of thorax with penetration into thoracic cavity, initial encounter
      • S21.332D Puncture wound without foreign body of left front wall of thorax with penetration into thoracic cavity, subsequent encounter
      • S21.332S Puncture wound without foreign body of left front wall of thorax with penetration into thoracic cavity, sequela

      • S21.339 Puncture wound without foreign body of unspecified front wall of thorax with penetration into thoracic cavity

      • S21.339A Puncture wound without foreign body of unspecified front wall of thorax with penetration into thoracic cavity, initial encounter
      • S21.339D Puncture wound without foreign body of unspecified front wall of thorax with penetration into thoracic cavity, subsequent encounter
      • S21.339S Puncture wound without foreign body of unspecified front wall of thorax with penetration into thoracic cavity, sequela

      • 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

      • S21.341A Puncture wound with foreign body of right front wall of thorax with penetration into thoracic cavity, initial encounter
      • S21.341D Puncture wound with foreign body of right front wall of thorax with penetration into thoracic cavity, subsequent encounter
      • S21.341S Puncture wound with foreign body of right front wall of thorax with penetration into thoracic cavity, sequela

      • S21.342 Puncture wound with foreign body of left front wall of thorax with penetration into thoracic cavity

      • S21.342A Puncture wound with foreign body of left front wall of thorax with penetration into thoracic cavity, initial encounter
      • S21.342D Puncture wound with foreign body of left front wall of thorax with penetration into thoracic cavity, subsequent encounter
      • S21.342S Puncture wound with foreign body of left front wall of thorax with penetration into thoracic cavity, sequela

      • S21.349 Puncture wound with foreign body of unspecified front wall of thorax with penetration into thoracic cavity

      • S21.349A Puncture wound with foreign body of unspecified front wall of thorax with penetration into thoracic cavity, initial encounter
      • S21.349D Puncture wound with foreign body of unspecified front wall of thorax with penetration into thoracic cavity, subsequent encounter
      • S21.349S Puncture wound with foreign body of unspecified front wall of thorax with penetration into thoracic cavity, sequela

      • 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

      • S21.351A Open bite of right front wall of thorax with penetration into thoracic cavity, initial encounter
      • S21.351D Open bite of right front wall of thorax with penetration into thoracic cavity, subsequent encounter
      • S21.351S Open bite of right front wall of thorax with penetration into thoracic cavity, sequela

      • S21.352 Open bite of left front wall of thorax with penetration into thoracic cavity

      • S21.352A Open bite of left front wall of thorax with penetration into thoracic cavity, initial encounter
      • S21.352D Open bite of left front wall of thorax with penetration into thoracic cavity, subsequent encounter
      • S21.352S Open bite of left front wall of thorax with penetration into thoracic cavity, sequela

      • S21.359 Open bite of unspecified front wall of thorax with penetration into thoracic cavity

      • S21.359A Open bite of unspecified front wall of thorax with penetration into thoracic cavity, initial encounter
      • S21.359D Open bite of unspecified front wall of thorax with penetration into thoracic cavity, subsequent encounter
      • S21.359S Open bite of unspecified front wall of thorax with penetration into thoracic cavity, sequela

      • S21.4 Open wound of back wall of thorax with penetration into thoracic cavity

      • 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

      • S21.401A Unspecified open wound of right back wall of thorax with penetration into thoracic cavity, initial encounter
      • S21.401D Unspecified open wound of right back wall of thorax with penetration into thoracic cavity, subsequent encounter
      • S21.401S Unspecified open wound of right back wall of thorax with penetration into thoracic cavity, sequela

      • S21.402 Unspecified open wound of left back wall of thorax with penetration into thoracic cavity

      • S21.402A Unspecified open wound of left back wall of thorax with penetration into thoracic cavity, initial encounter
      • S21.402D Unspecified open wound of left back wall of thorax with penetration into thoracic cavity, subsequent encounter
      • S21.402S Unspecified open wound of left back wall of thorax with penetration into thoracic cavity, sequela

      • S21.409 Unspecified open wound of unspecified back wall of thorax with penetration into thoracic cavity

      • S21.409A Unspecified open wound of unspecified back wall of thorax with penetration into thoracic cavity, initial encounter
      • S21.409D Unspecified open wound of unspecified back wall of thorax with penetration into thoracic cavity, subsequent encounter
      • S21.409S Unspecified open wound of unspecified back wall of thorax with penetration into thoracic cavity, sequela

      • 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

      • S21.411A Laceration without foreign body of right back wall of thorax with penetration into thoracic cavity, initial encounter
      • S21.411D Laceration without foreign body of right back wall of thorax with penetration into thoracic cavity, subsequent encounter
      • S21.411S Laceration without foreign body of right back wall of thorax with penetration into thoracic cavity, sequela

      • S21.412 Laceration without foreign body of left back wall of thorax with penetration into thoracic cavity

      • S21.412A Laceration without foreign body of left back wall of thorax with penetration into thoracic cavity, initial encounter
      • S21.412D Laceration without foreign body of left back wall of thorax with penetration into thoracic cavity, subsequent encounter
      • S21.412S Laceration without foreign body of left back wall of thorax with penetration into thoracic cavity, sequela

      • S21.419 Laceration without foreign body of unspecified back wall of thorax with penetration into thoracic cavity

      • S21.419A Laceration without foreign body of unspecified back wall of thorax with penetration into thoracic cavity, initial encounter
      • S21.419D Laceration without foreign body of unspecified back wall of thorax with penetration into thoracic cavity, subsequent encounter
      • S21.419S Laceration without foreign body of unspecified back wall of thorax with penetration into thoracic cavity, sequela

      • 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

      • S21.421A Laceration with foreign body of right back wall of thorax with penetration into thoracic cavity, initial encounter
      • S21.421D Laceration with foreign body of right back wall of thorax with penetration into thoracic cavity, subsequent encounter
      • S21.421S Laceration with foreign body of right back wall of thorax with penetration into thoracic cavity, sequela

      • S21.422 Laceration with foreign body of left back wall of thorax with penetration into thoracic cavity

      • S21.422A Laceration with foreign body of left back wall of thorax with penetration into thoracic cavity, initial encounter
      • S21.422D Laceration with foreign body of left back wall of thorax with penetration into thoracic cavity, subsequent encounter
      • S21.422S Laceration with foreign body of left back wall of thorax with penetration into thoracic cavity, sequela

      • S21.429 Laceration with foreign body of unspecified back wall of thorax with penetration into thoracic cavity

      • S21.429A Laceration with foreign body of unspecified back wall of thorax with penetration into thoracic cavity, initial encounter
      • S21.429D Laceration with foreign body of unspecified back wall of thorax with penetration into thoracic cavity, subsequent encounter
      • S21.429S Laceration with foreign body of unspecified back wall of thorax with penetration into thoracic cavity, sequela

      • 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

      • S21.431A Puncture wound without foreign body of right back wall of thorax with penetration into thoracic cavity, initial encounter
      • S21.431D Puncture wound without foreign body of right back wall of thorax with penetration into thoracic cavity, subsequent encounter
      • S21.431S Puncture wound without foreign body of right back wall of thorax with penetration into thoracic cavity, sequela

      • S21.432 Puncture wound without foreign body of left back wall of thorax with penetration into thoracic cavity

      • S21.432A Puncture wound without foreign body of left back wall of thorax with penetration into thoracic cavity, initial encounter
      • S21.432D Puncture wound without foreign body of left back wall of thorax with penetration into thoracic cavity, subsequent encounter
      • S21.432S Puncture wound without foreign body of left back wall of thorax with penetration into thoracic cavity, sequela

      • S21.439 Puncture wound without foreign body of unspecified back wall of thorax with penetration into thoracic cavity

      • S21.439A Puncture wound without foreign body of unspecified back wall of thorax with penetration into thoracic cavity, initial encounter
      • S21.439D Puncture wound without foreign body of unspecified back wall of thorax with penetration into thoracic cavity, subsequent encounter
      • S21.439S Puncture wound without foreign body of unspecified back wall of thorax with penetration into thoracic cavity, sequela

      • 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

      • S21.441A Puncture wound with foreign body of right back wall of thorax with penetration into thoracic cavity, initial encounter
      • S21.441D Puncture wound with foreign body of right back wall of thorax with penetration into thoracic cavity, subsequent encounter
      • S21.441S Puncture wound with foreign body of right back wall of thorax with penetration into thoracic cavity, sequela

      • S21.442 Puncture wound with foreign body of left back wall of thorax with penetration into thoracic cavity

      • S21.442A Puncture wound with foreign body of left back wall of thorax with penetration into thoracic cavity, initial encounter
      • S21.442D Puncture wound with foreign body of left back wall of thorax with penetration into thoracic cavity, subsequent encounter
      • S21.442S Puncture wound with foreign body of left back wall of thorax with penetration into thoracic cavity, sequela

      • S21.449 Puncture wound with foreign body of unspecified back wall of thorax with penetration into thoracic cavity

      • S21.449A Puncture wound with foreign body of unspecified back wall of thorax with penetration into thoracic cavity, initial encounter
      • S21.449D Puncture wound with foreign body of unspecified back wall of thorax with penetration into thoracic cavity, subsequent encounter
      • S21.449S Puncture wound with foreign body of unspecified back wall of thorax with penetration into thoracic cavity, sequela

      • S21.45 Open bite of back wall of thorax with penetration into thoracic cavity

      • S21.451 Open bite of right back wall of thorax with penetration into thoracic cavity

      • S21.451A Open bite of right back wall of thorax with penetration into thoracic cavity, initial encounter
      • S21.451D Open bite of right back wall of thorax with penetration into thoracic cavity, subsequent encounter
      • S21.451S Open bite of right back wall of thorax with penetration into thoracic cavity, sequela

      • S21.452 Open bite of left back wall of thorax with penetration into thoracic cavity

      • S21.452A Open bite of left back wall of thorax with penetration into thoracic cavity, initial encounter
      • S21.452D Open bite of left back wall of thorax with penetration into thoracic cavity, subsequent encounter
      • S21.452S Open bite of left back wall of thorax with penetration into thoracic cavity, sequela

      • S21.459 Open bite of unspecified back wall of thorax with penetration into thoracic cavity

      • S21.459A Open bite of unspecified back wall of thorax with penetration into thoracic cavity, initial encounter
      • S21.459D Open bite of unspecified back wall of thorax with penetration into thoracic cavity, subsequent encounter
      • S21.459S Open bite of unspecified back wall of thorax with penetration into thoracic cavity, sequela

      • S21.9 Open wound of unspecified part of thorax

      • S21.90 Unspecified open wound of unspecified part of thorax

      • S21.90XA Unspecified open wound of unspecified part of thorax, initial encounter
      • S21.90XD Unspecified open wound of unspecified part of thorax, subsequent encounter
      • S21.90XS Unspecified open wound of unspecified part of thorax, sequela

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

      • S21.91XA Laceration without foreign body of unspecified part of thorax, initial encounter
      • S21.91XD Laceration without foreign body of unspecified part of thorax, subsequent encounter
      • S21.91XS Laceration without foreign body of unspecified part of thorax, sequela

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

      • S21.92XA Laceration with foreign body of unspecified part of thorax, initial encounter
      • S21.92XD Laceration with foreign body of unspecified part of thorax, subsequent encounter
      • S21.92XS Laceration with foreign body of unspecified part of thorax, sequela

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

      • S21.93XA Puncture wound without foreign body of unspecified part of thorax, initial encounter
      • S21.93XD Puncture wound without foreign body of unspecified part of thorax, subsequent encounter
      • S21.93XS Puncture wound without foreign body of unspecified part of thorax, sequela

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

      • S21.94XA Puncture wound with foreign body of unspecified part of thorax, initial encounter
      • S21.94XD Puncture wound with foreign body of unspecified part of thorax, subsequent encounter
      • S21.94XS Puncture wound with foreign body of unspecified part of thorax, sequela

      • S21.95 Open bite of unspecified part of thorax

      • S21.95XA Open bite of unspecified part of thorax, initial encounter
      • S21.95XD Open bite of unspecified part of thorax, subsequent encounter
      • S21.95XS Open bite of unspecified part of thorax, sequela

Instructional Notations

Code Also

A "code also" note instructs that two codes may be required to fully describe a condition, but this note does not provide sequencing direction.

• any associated injury, such as:
• injury of heart S26
• injury of intrathoracic organs S27
• rib fracture S22.3 S22.4
• spinal cord injury S24.0 S24.1
• traumatic hemopneumothorax S27.3
• traumatic hemothorax S27.1
• traumatic pneumothorax S27.0
• wound infection

Type 1 Excludes

A type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.

• traumatic amputation partial of thorax S28.1

7th Character Note

Certain ICD-10-CM categories have applicable 7th characters. The applicable 7th character is required for all codes within the category, or as the notes in the Tabular List instruct. The 7th character must always be the 7th character in the data field. If a code that requires a 7th character is not 6 characters, a placeholder X must be used to fill in the empty characters.

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

7th Character

Indicates that a seventh character is to be assigned to codes in a subcategory.

• A - initial encounter
• D - subsequent encounter
• S - sequela

Clinical Terms

The following clinical terms provide additional context, helping users better understand the clinical background and common associations for each diagnosis listed in this section. Including related terms alongside ICD-10-CM codes supports coders, billers, and healthcare professionals in improving accuracy, enhancing documentation, and facilitating research or patient education.