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 CodesS21.312

S21.312

Billable

Laceration without foreign body of left front wall of thorax with penetration into thoracic cavity

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

Code Description

ICD-10 S21.312 is a billable code used to indicate a diagnosis of laceration without foreign body of left front wall of thorax with penetration into thoracic cavity.

Key Diagnostic Point:

S21.312 refers to a specific type of chest trauma characterized by a laceration of the left front wall of the thorax that penetrates into the thoracic cavity without the presence of a foreign body. This injury can result from various mechanisms, including blunt or penetrating trauma, and is often associated with significant complications such as rib fractures, pneumothorax, hemothorax, and potential cardiac injuries. The thoracic cavity houses vital organs, including the heart and lungs, making such injuries critical. Clinicians must assess for associated injuries, which may require imaging studies like chest X-rays or CT scans. Management may involve surgical intervention to repair the laceration, drain any fluid collections, or address any underlying injuries to the lungs or heart. Accurate coding is essential for appropriate treatment planning and reimbursement, as well as for tracking outcomes in trauma care.

Code Complexity Analysis

Complexity Rating: High

High Complexity

Complexity Factors

  • Requires detailed documentation of the mechanism of injury.
  • Assessment of associated injuries (e.g., rib fractures, pneumothorax).
  • Potential for multiple interventions and complications.
  • Need for precise anatomical localization of the injury.

Audit Risk Factors

  • Inadequate documentation of the injury mechanism.
  • Failure to document associated injuries.
  • Incorrect coding of the laceration depth or extent.
  • Misinterpretation of imaging results.

Specialty Focus

Medical Specialties

Trauma Surgery

Documentation Requirements

Detailed operative reports and imaging studies.

Common Clinical Scenarios

Management of penetrating chest trauma, rib fractures, and hemothorax.

Billing Considerations

Ensure all associated injuries are documented to support coding.

Emergency Medicine

Documentation Requirements

Thorough initial assessment and treatment documentation.

Common Clinical Scenarios

Initial evaluation of trauma patients with chest injuries.

Billing Considerations

Document vital signs and any immediate interventions performed.

Coding Guidelines

Inclusion Criteria

Use S21.312 When
  • Follow official ICD
  • CM coding guidelines, ensuring accurate documentation of the injury's specifics, including laterality and depth
  • Include any associated conditions such as pneumothorax or hemothorax in coding

Exclusion Criteria

Do NOT use S21.312 When
No specific exclusions found.

Related ICD-10 Codes

Related CPT Codes

32000CPT Code

Thoracentesis

Clinical Scenario

Used to drain fluid from the thoracic cavity in cases of hemothorax.

Documentation Requirements

Document indication for procedure and fluid analysis.

Specialty Considerations

Ensure proper coding for the procedure based on the complexity.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 has allowed for more specific coding of chest injuries, improving the accuracy of data collection and reimbursement processes. S21.312 provides a clear distinction for injuries that penetrate the thoracic cavity, which is crucial for treatment planning.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of chest injuries, improving the accuracy of data collection and reimbursement processes. S21.312 provides a clear distinction for injuries that penetrate the thoracic cavity, which is crucial for treatment planning.

Reimbursement & Billing Impact

reimbursement processes. S21.312 provides a clear distinction for injuries that penetrate the thoracic cavity, which is crucial for treatment planning.

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 significance of coding S21.312 accurately?

Accurate coding of S21.312 is crucial for appropriate treatment planning, reimbursement, and tracking outcomes in trauma care. It ensures that the severity of the injury is recognized and managed appropriately.