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ICD-10 Guide
ICD-10 CodesS21.41

S21.41

Billable

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

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

Code Description

ICD-10 S21.41 is a billable code used to indicate a diagnosis of laceration without foreign body of back wall of thorax with penetration into thoracic cavity.

Key Diagnostic Point:

S21.41 refers to a specific type of thoracic injury characterized by a laceration of the back wall of the thorax that penetrates into the thoracic cavity but does not involve a foreign body. This condition is often the result of blunt or penetrating trauma, such as from a knife or a gunshot wound, and can lead to serious complications including pneumothorax, hemothorax, and potential cardiac injuries. The thoracic cavity houses vital organs including the lungs and heart, making any injury in this area critical. The presence of a laceration can disrupt normal respiratory function and lead to significant blood loss. Patients may present with symptoms such as chest pain, difficulty breathing, and signs of shock. Immediate medical intervention is often required, which may include surgical repair of the laceration, drainage of fluid collections, and stabilization of any associated rib fractures. Accurate coding of this condition is essential for appropriate treatment planning and reimbursement.

Code Complexity Analysis

Complexity Rating: High

High Complexity

Complexity Factors

  • Requires detailed documentation of the mechanism of injury.
  • Differentiation from other thoracic injuries such as rib fractures and pneumothorax.
  • Potential for associated injuries that must be documented.
  • Need for precise anatomical terminology to describe the laceration.

Audit Risk Factors

  • Inadequate documentation of the mechanism of injury.
  • Failure to document associated injuries or complications.
  • Misclassification of the type of laceration.
  • Lack of clarity in the description of the anatomical location.

Specialty Focus

Medical Specialties

Trauma Surgery

Documentation Requirements

Detailed operative notes and imaging studies to confirm the extent of injury.

Common Clinical Scenarios

Management of penetrating trauma from stab wounds or gunshot wounds.

Billing Considerations

Need for multidisciplinary approach including trauma, cardiothoracic, and vascular surgery.

Emergency Medicine

Documentation Requirements

Thorough initial assessment and documentation of vital signs, mechanism of injury, and physical exam findings.

Common Clinical Scenarios

Initial evaluation and stabilization of patients with thoracic trauma.

Billing Considerations

Rapid assessment for life-threatening injuries and coordination with trauma services.

Coding Guidelines

Inclusion Criteria

Use S21.41 When
  • Follow official ICD
  • CM coding guidelines, ensuring accurate documentation of the injury type, location, and any associated complications
  • Include details on the mechanism of injury and any surgical interventions performed

Exclusion Criteria

Do NOT use S21.41 When
No specific exclusions found.

Related ICD-10 Codes

Related CPT Codes

39000CPT Code

Thoracotomy

Clinical Scenario

Used for surgical intervention in cases of penetrating thoracic injuries.

Documentation Requirements

Operative report detailing the procedure and findings.

Specialty Considerations

Requires coordination with trauma and surgical teams.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 has allowed for more specific coding of thoracic injuries, improving the accuracy of claims and facilitating better patient care through detailed documentation of injuries.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of thoracic injuries, improving the accuracy of claims and facilitating better patient care through detailed documentation of injuries.

Reimbursement & Billing Impact

The transition to ICD-10 has allowed for more specific coding of thoracic injuries, improving the accuracy of claims and facilitating better patient care through detailed documentation of injuries.

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 S21.41 and S21.40?

S21.41 indicates a laceration that penetrates the thoracic cavity, while S21.40 refers to a laceration that does not penetrate. Accurate documentation of the injury's extent is crucial for correct coding.