ICD-10 Logo
ICDxICD-10 Medical Coding
ICD-10 Logo
ICDxICD-10 Medical Coding
ICD 10 CodesDiagnoses
ICD 10 CodesDiagnoses
ICD-10 Logo
ICDxICD-10 Medical Coding

Comprehensive ICD-10-CM code reference with AI-powered search capabilities.

© 2025 ICD Code Compass. All rights reserved.

Browse

  • All Chapters
  • All Categories
  • Diagnoses

Tools

  • AI Code Search
ICD-10-CM codes are maintained by the CDC and CMS. This tool is for reference purposes only.
v1.0.0
ICD-10 Guide
ICD-10 CodesS21.252

S21.252

Billable

Open bite of left back wall of thorax without penetration into thoracic cavity

BILLABLE STATUSYes
IMPLEMENTATION DATEOctober 1, 2015
LAST UPDATED09/23/2025

Code Description

ICD-10 S21.252 is a billable code used to indicate a diagnosis of open bite of left back wall of thorax without penetration into thoracic cavity.

Key Diagnostic Point:

An open bite of the left back wall of the thorax refers to a traumatic injury where a portion of the thoracic wall has been penetrated by a bite, but without any breach into the thoracic cavity itself. This type of injury can occur in various scenarios, including animal bites or human bites, and may lead to significant soft tissue damage, potential infection, and complications such as pneumothorax or hemothorax if not properly managed. The thoracic wall consists of skin, muscles, and ribs, and injuries in this area can affect respiratory function and may require surgical intervention depending on the severity. In cases where the bite is deep but does not penetrate the thoracic cavity, careful monitoring for signs of infection and respiratory distress is essential. Treatment may involve wound care, antibiotics, and possibly surgical debridement to ensure proper healing and prevent complications.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Differentiating between open and closed injuries
  • Assessing the depth and extent of the bite
  • Potential for associated injuries (e.g., rib fractures)
  • Need for detailed documentation of the injury mechanism

Audit Risk Factors

  • Inadequate documentation of the injury mechanism
  • Failure to note associated injuries
  • Misclassification of the injury type (open vs. closed)
  • Lack of follow-up documentation on healing and complications

Specialty Focus

Medical Specialties

Emergency Medicine

Documentation Requirements

Detailed account of the injury mechanism, assessment of vital signs, and any immediate interventions performed.

Common Clinical Scenarios

Patients presenting with bite wounds from animals or humans, requiring evaluation for potential complications.

Billing Considerations

Ensure that the documentation reflects the depth of the injury and any associated injuries to support accurate coding.

Surgery

Documentation Requirements

Operative reports detailing the extent of the injury, surgical interventions performed, and post-operative care.

Common Clinical Scenarios

Patients requiring surgical debridement or repair of the thoracic wall due to bite injuries.

Billing Considerations

Document any findings during surgery that may affect coding, such as unexpected complications.

Coding Guidelines

Inclusion Criteria

Use S21.252 When
  • According to ICD
  • 10 coding guidelines, S21
  • 252 should be used when documenting an open bite injury to the thoracic wall without thoracic cavity penetration
  • Coders must ensure that the documentation supports the diagnosis and reflects the injury's specifics

Exclusion Criteria

Do NOT use S21.252 When
No specific exclusions found.

Related ICD-10 Codes

Related CPT Codes

12001CPT Code

Simple repair of superficial wounds

Clinical Scenario

Used for repair of the bite wound if it is superficial.

Documentation Requirements

Document the size of the wound and the method of repair.

Specialty Considerations

Ensure that the repair is appropriate for the depth of the injury.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 has allowed for more specific coding of injuries, including open bites, which helps in better tracking and management of such injuries in clinical settings.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of injuries, including open bites, which helps in better tracking and management of such injuries in clinical settings.

Reimbursement & Billing Impact

The transition to ICD-10 has allowed for more specific coding of injuries, including open bites, which helps in better tracking and management of such injuries in clinical settings.

Resources

Clinical References

  • •
    ICD-10-CM Official Guidelines for Coding and Reporting

Coding & Billing References

  • •
    ICD-10-CM Official Guidelines for Coding and Reporting

Frequently Asked Questions

What is the difference between an open bite and a closed bite injury?

An open bite injury involves a break in the skin and exposure of underlying tissues, while a closed bite injury does not breach the skin. Open bites may require more extensive treatment and carry a higher risk of infection.