ICD-10 Diagnosis Code S21.251A

Open bite of r bk wl of thorax w/o penet thor cavity, init

Diagnosis Code S21.251A

ICD-10: S21.251A
Short Description: Open bite of r bk wl of thorax w/o penet thor cavity, init
Long Description: Open bite of right back wall of thorax without penetration into thoracic cavity, initial encounter
This is the 2017 version of the ICD-10-CM diagnosis code S21.251A

Valid for Submission
The code S21.251A is valid for submission for HIPAA-covered transactions.

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

Information for Medical Professionals

Diagnostic Related Groups
The diagnosis code S21.251A is grouped in the following Diagnostic Related Group(s) (MS-DRG v33.0)

  • TRAUMA TO THE SKIN, SUBCUTANEOUS TISSUE AND BREAST WITH MCC 604
  • TRAUMA TO THE SKIN, SUBCUTANEOUS TISSUE AND BREAST WITHOUT MCC 605

Information for Patients


Animal Bites

Also called: Cat bites, Dog 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

  • Animal bites -- self-care
  • Jellyfish stings
  • Marine animal stings or bites
  • Snake bites


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