ICD-10 Code S21.3

Open wound of front wall of thorax with penetration into thoracic cavity

Version 2020 Non-Billable Code

Not Valid for Submission

S21.3 is a "header" nonspecific and non-billable code code, consider using a code with a higher level of specificity for a diagnosis of open wound of front wall of thorax with penetration into thoracic cavity. The code is NOT valid for the year 2020 for the submission of HIPAA-covered transactions.

ICD-10:S21.3
Short Description:Open wound of front wall of thorax w penet thoracic cavity
Long Description:Open wound of front wall of thorax with penetration into thoracic cavity

Consider the following ICD-10 codes with a higher level of specificity:

  • 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

Tabular List of Diseases and Injuries

The Tabular List of Diseases and Injuries is a list of ICD-10 codes, organized "head to toe" into chapters and sections with guidance for inclusions, exclusions, descriptions and more. The following references are applicable to the code S21.3:

Inclusion Terms

Inclusion Terms
These terms are the conditions for which that code is to be used. The terms may be synonyms of the code title, or, in the case of "other specified" codes, the terms are a list of the various conditions assigned to that code. The inclusion terms are not necessarily exhaustive. Additional terms found only in the Alphabetic Index may also be assigned to a code.
  • Open wound of chest with penetration into thoracic cavity

Code Classification

  • Injury, poisoning and certain other consequences of external causes (S00–T98)
    • Injuries to the thorax (S20-S29)
      • Open wound of thorax (S21)

Code History

  • FY 2016 - New Code, effective from 10/1/2015 through 9/30/2016
    (First year ICD-10-CM implemented into the HIPAA code set)
  • FY 2017 - No Change, effective from 10/1/2016 through 9/30/2017
  • FY 2018 - No Change, effective from 10/1/2017 through 9/30/2018
  • FY 2019 - No Change, effective from 10/1/2018 through 9/30/2019
  • FY 2020 - No Change, effective from 10/1/2019 through 9/30/2020

Information for Patients


Animal Bites

Wild animals usually avoid people. They might attack, however, if they feel threatened, are sick, or are protecting their young or territory. Attacks by pets are more common. Animal bites rarely are life-threatening, but if they become infected, you can develop serious medical problems.

To prevent animal bites and complications from bites

  • Never pet, handle, or feed unknown animals
  • Leave snakes alone
  • Watch your children closely around animals
  • Vaccinate your cats, ferrets, and dogs against rabies
  • Spay or neuter your dog to make it less aggressive
  • Get a tetanus booster if you have not had one recently
  • Wear boots and long pants when you are in areas with venomous snakes

If an animal bites you, clean the wound with soap and water as soon as possible. Get medical attention if necessary.

Centers for Disease Control and Prevention


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