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. S20 Superficial injury of thorax

    The appropriate 7th character is to be added to each code from category S20

    • A - initial encounter
    • D - subsequent encounter
    • S - sequela
    1. S20.0 Contusion of breast

      1. S20.00 Contusion of breast, unspecified breast

      2. S20.01 Contusion of right breast

      3. S20.02 Contusion of left breast

    2. S20.1 Other and unspecified superficial injuries of breast

      1. S20.10 Unspecified superficial injuries of breast

        • S20.101 Unspecified superficial injuries of breast, right breast
        • S20.102 Unspecified superficial injuries of breast, left breast
        • S20.109 Unspecified superficial injuries of breast, unspecified breast
      2. S20.11 Abrasion of breast

        • S20.111 Abrasion of breast, right breast
        • S20.112 Abrasion of breast, left breast
        • S20.119 Abrasion of breast, unspecified breast
      3. S20.12 Blister (nonthermal) of breast

        • S20.121 Blister (nonthermal) of breast, right breast
        • S20.122 Blister (nonthermal) of breast, left breast
        • S20.129 Blister (nonthermal) of breast, unspecified breast
      4. S20.14 External constriction of part of breast

        • S20.141 External constriction of part of breast, right breast
        • S20.142 External constriction of part of breast, left breast
        • S20.149 External constriction of part of breast, unspecified breast
      5. S20.15 Superficial foreign body of breast

        Inclusion term(s):

        • Splinter in the breast
        • S20.151 Superficial foreign body of breast, right breast
        • S20.152 Superficial foreign body of breast, left breast
        • S20.159 Superficial foreign body of breast, unspecified breast
      6. S20.16 Insect bite (nonvenomous) of breast

        • S20.161 Insect bite (nonvenomous) of breast, right breast
        • S20.162 Insect bite (nonvenomous) of breast, left breast
        • S20.169 Insect bite (nonvenomous) of breast, unspecified breast
      7. S20.17 Other superficial bite of breast

        • S20.171 Other superficial bite of breast, right breast
        • S20.172 Other superficial bite of breast, left breast
        • S20.179 Other superficial bite of breast, unspecified breast
    3. S20.2 Contusion of thorax

      1. S20.20 Contusion of thorax, unspecified

      2. S20.21 Contusion of front wall of thorax

        • S20.211 Contusion of right front wall of thorax
        • S20.212 Contusion of left front wall of thorax
        • S20.213 Contusion of bilateral front wall of thorax
        • S20.214 Contusion of middle front wall of thorax
        • S20.219 Contusion of unspecified front wall of thorax
      3. S20.22 Contusion of back wall of thorax

        • S20.221 Contusion of right back wall of thorax
        • S20.222 Contusion of left back wall of thorax
        • S20.223 Contusion of bilateral back wall of thorax
        • S20.224 Contusion of middle back wall of thorax
        • S20.229 Contusion of unspecified back wall of thorax
    4. S20.3 Other and unspecified superficial injuries of front wall of thorax

      1. S20.30 Unspecified superficial injuries of front wall of thorax

        • S20.301 Unspecified superficial injuries of right front wall of thorax
        • S20.302 Unspecified superficial injuries of left front wall of thorax
        • S20.303 Unspecified superficial injuries of bilateral front wall of thorax
        • S20.304 Unspecified superficial injuries of middle front wall of thorax
        • S20.309 Unspecified superficial injuries of unspecified front wall of thorax
      2. S20.31 Abrasion of front wall of thorax

        • S20.311 Abrasion of right front wall of thorax
        • S20.312 Abrasion of left front wall of thorax
        • S20.313 Abrasion of bilateral front wall of thorax
        • S20.314 Abrasion of middle front wall of thorax
        • S20.319 Abrasion of unspecified front wall of thorax
      3. S20.32 Blister (nonthermal) of front wall of thorax

        • S20.321 Blister (nonthermal) of right front wall of thorax
        • S20.322 Blister (nonthermal) of left front wall of thorax
        • S20.323 Blister (nonthermal) of bilateral front wall of thorax
        • S20.324 Blister (nonthermal) of middle front wall of thorax
        • S20.329 Blister (nonthermal) of unspecified front wall of thorax
      4. S20.34 External constriction of front wall of thorax

        • S20.341 External constriction of right front wall of thorax
        • S20.342 External constriction of left front wall of thorax
        • S20.343 External constriction of bilateral front wall of thorax
        • S20.344 External constriction of middle front wall of thorax
        • S20.349 External constriction of unspecified front wall of thorax
      5. S20.35 Superficial foreign body of front wall of thorax

        Inclusion term(s):

        • Splinter in front wall of thorax
        • S20.351 Superficial foreign body of right front wall of thorax
        • S20.352 Superficial foreign body of left front wall of thorax
        • S20.353 Superficial foreign body of bilateral front wall of thorax
        • S20.354 Superficial foreign body of middle front wall of thorax
        • S20.359 Superficial foreign body of unspecified front wall of thorax
      6. S20.36 Insect bite (nonvenomous) of front wall of thorax

        • S20.361 Insect bite (nonvenomous) of right front wall of thorax
        • S20.362 Insect bite (nonvenomous) of left front wall of thorax
        • S20.363 Insect bite (nonvenomous) of bilateral front wall of thorax
        • S20.364 Insect bite (nonvenomous) of middle front wall of thorax
        • S20.369 Insect bite (nonvenomous) of unspecified front wall of thorax
      7. S20.37 Other superficial bite of front wall of thorax

        • S20.371 Other superficial bite of right front wall of thorax
        • S20.372 Other superficial bite of left front wall of thorax
        • S20.373 Other superficial bite of bilateral front wall of thorax
        • S20.374 Other superficial bite of middle front wall of thorax
        • S20.379 Other superficial bite of unspecified front wall of thorax
    5. S20.4 Other and unspecified superficial injuries of back wall of thorax

      1. S20.40 Unspecified superficial injuries of back wall of thorax

        • S20.401 Unspecified superficial injuries of right back wall of thorax
        • S20.402 Unspecified superficial injuries of left back wall of thorax
        • S20.409 Unspecified superficial injuries of unspecified back wall of thorax
      2. S20.41 Abrasion of back wall of thorax

        • S20.411 Abrasion of right back wall of thorax
        • S20.412 Abrasion of left back wall of thorax
        • S20.419 Abrasion of unspecified back wall of thorax
      3. S20.42 Blister (nonthermal) of back wall of thorax

        • S20.421 Blister (nonthermal) of right back wall of thorax
        • S20.422 Blister (nonthermal) of left back wall of thorax
        • S20.429 Blister (nonthermal) of unspecified back wall of thorax
      4. S20.44 External constriction of back wall of thorax

        • S20.441 External constriction of right back wall of thorax
        • S20.442 External constriction of left back wall of thorax
        • S20.449 External constriction of unspecified back wall of thorax
      5. S20.45 Superficial foreign body of back wall of thorax

        Inclusion term(s):

        • Splinter of back wall of thorax
        • S20.451 Superficial foreign body of right back wall of thorax
        • S20.452 Superficial foreign body of left back wall of thorax
        • S20.459 Superficial foreign body of unspecified back wall of thorax
      6. S20.46 Insect bite (nonvenomous) of back wall of thorax

        • S20.461 Insect bite (nonvenomous) of right back wall of thorax
        • S20.462 Insect bite (nonvenomous) of left back wall of thorax
        • S20.469 Insect bite (nonvenomous) of unspecified back wall of thorax
      7. S20.47 Other superficial bite of back wall of thorax

        • S20.471 Other superficial bite of right back wall of thorax
        • S20.472 Other superficial bite of left back wall of thorax
        • S20.479 Other superficial bite of unspecified back wall of thorax
    6. S20.9 Superficial injury of unspecified parts of thorax

      1. S20.90 Unspecified superficial injury of unspecified parts of thorax

        Inclusion term(s):

        • Superficial injury of thoracic wall NOS
      2. S20.91 Abrasion of unspecified parts of thorax

      3. S20.92 Blister (nonthermal) of unspecified parts of thorax

      4. S20.94 External constriction of unspecified parts of thorax

      5. S20.95 Superficial foreign body of unspecified parts of thorax

        Inclusion term(s):

        • Splinter in thorax NOS
      6. S20.96 Insect bite (nonvenomous) of unspecified parts of thorax

      7. S20.97 Other superficial bite of unspecified parts 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.