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 CodesS21.451

S21.451

Billable

Open bite of right back wall of thorax with penetration into thoracic cavity

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

Code Description

ICD-10 S21.451 is a billable code used to indicate a diagnosis of open bite of right back wall of thorax with penetration into thoracic cavity.

Key Diagnostic Point:

An open bite of the right back wall of the thorax with penetration into the thoracic cavity is a traumatic injury that typically results from a penetrating object, such as a knife or a sharp foreign body, causing a wound that breaches the thoracic wall. This injury can lead to serious complications, including pneumothorax (air in the pleural space), hemothorax (blood in the pleural space), and potential cardiac injuries due to the proximity of the heart to the thoracic wall. The clinical presentation may include respiratory distress, chest pain, and signs of shock. Immediate medical intervention is critical to manage the airway, control bleeding, and prevent infection. Surgical intervention may be required to repair the thoracic wall and address any damage to the lungs or heart. The complexity of this injury necessitates thorough documentation of the mechanism of injury, the extent of the damage, and any surgical procedures performed.

Code Complexity Analysis

Complexity Rating: High

High Complexity

Complexity Factors

  • Requires detailed documentation of the mechanism of injury.
  • Involves potential complications such as pneumothorax and hemothorax.
  • May necessitate surgical intervention with specific procedural codes.
  • Requires understanding of anatomical locations and their implications.

Audit Risk Factors

  • Inadequate documentation of the mechanism of injury.
  • Failure to document associated injuries or complications.
  • Incorrect coding of surgical procedures performed.
  • Lack of clarity in the clinical narrative regarding the extent of the injury.

Specialty Focus

Medical Specialties

Trauma Surgery

Documentation Requirements

Detailed operative reports and injury assessments are required to justify the coding of complex thoracic injuries.

Common Clinical Scenarios

Trauma from stabbings, gunshot wounds, or industrial accidents leading to thoracic injuries.

Billing Considerations

Documentation must clearly outline the extent of the injury and any surgical interventions performed.

Emergency Medicine

Documentation Requirements

Thorough initial assessments and imaging results must be documented to support the diagnosis.

Common Clinical Scenarios

Patients presenting with acute chest pain and respiratory distress following trauma.

Billing Considerations

Timely documentation is crucial for accurate coding and billing, especially in emergency settings.

Coding Guidelines

Inclusion Criteria

Use S21.451 When
  • According to ICD
  • CM guidelines, this code should be used when there is a documented open bite injury with penetration into the thoracic cavity
  • It is important to ensure that the documentation supports the diagnosis and includes details about the injury mechanism and any associated complications

Exclusion Criteria

Do NOT use S21.451 When
No specific exclusions found.

Related ICD-10 Codes

Related CPT Codes

32000CPT Code

Thoracentesis

Clinical Scenario

Used to drain fluid from the pleural space in cases of hemothorax.

Documentation Requirements

Document the indication for the procedure and the amount of fluid drained.

Specialty Considerations

Emergency medicine specialists often perform this procedure in acute settings.

32100CPT Code

Thoracotomy

Clinical Scenario

Performed for surgical repair of penetrating thoracic injuries.

Documentation Requirements

Detailed operative report required, including findings and interventions.

Specialty Considerations

Trauma surgeons must document the extent of the injury and any repairs made.

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 with penetration, which enhances the ability to capture the complexity of thoracic injuries and their management.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of injuries, including open bites with penetration, which enhances the ability to capture the complexity of thoracic injuries and their management.

Reimbursement & Billing Impact

The transition to ICD-10 has allowed for more specific coding of injuries, including open bites with penetration, which enhances the ability to capture the complexity of thoracic injuries and their management.

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 primary documentation needed for coding S21.451?

The primary documentation needed includes a detailed description of the injury mechanism, any associated complications such as pneumothorax or hemothorax, and the surgical interventions performed.