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ICD-10 Guide
ICD-10 CodesS21.419

S21.419

Billable

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

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

Code Description

ICD-10 S21.419 is a billable code used to indicate a diagnosis of laceration without foreign body of unspecified back wall of thorax with penetration into thoracic cavity.

Key Diagnostic Point:

S21.419 refers to a laceration of the back wall of the thorax that does not involve a foreign body and has penetrated into the thoracic cavity. This type of injury is often the result of blunt or penetrating trauma, such as from a fall, motor vehicle accident, or stab wound. The thoracic cavity houses vital organs, including the lungs and heart, making such injuries potentially life-threatening. Clinically, patients may present with symptoms such as chest pain, difficulty breathing, or signs of shock. Diagnostic imaging, such as chest X-rays or CT scans, is crucial for assessing the extent of the injury and ruling out complications like pneumothorax (air in the pleural space) or hemothorax (blood in the pleural space). Management may involve surgical intervention to repair the laceration and address any associated injuries, such as rib fractures or cardiac injuries. Close monitoring for complications is essential in the acute care setting.

Code Complexity Analysis

Complexity Rating: High

High Complexity

Complexity Factors

  • Requires detailed documentation of the mechanism of injury.
  • Assessment of associated injuries (e.g., pneumothorax, hemothorax).
  • Potential for multiple surgical interventions.
  • Need for accurate coding of complications and co-morbidities.

Audit Risk Factors

  • Inadequate documentation of the injury mechanism.
  • Failure to document associated injuries.
  • Misclassification of the type of laceration.
  • Inconsistent coding of complications.

Specialty Focus

Medical Specialties

Trauma Surgery

Documentation Requirements

Detailed operative reports and imaging studies.

Common Clinical Scenarios

Management of penetrating trauma, rib fractures, and thoracotomy.

Billing Considerations

Ensure all associated injuries are documented for accurate coding.

Emergency Medicine

Documentation Requirements

Thorough initial assessment and treatment notes.

Common Clinical Scenarios

Acute chest trauma, assessment of pneumothorax or hemothorax.

Billing Considerations

Document vital signs and any interventions performed in the ED.

Coding Guidelines

Inclusion Criteria

Use S21.419 When
  • Follow official ICD
  • CM guidelines for coding injuries, ensuring accurate documentation of the injury site and any associated complications
  • Include details about the mechanism of injury and any surgical interventions performed

Exclusion Criteria

Do NOT use S21.419 When
No specific exclusions found.

Related ICD-10 Codes

Related CPT Codes

99285CPT Code

Emergency department visit, high severity

Clinical Scenario

Used for patients presenting with severe chest trauma.

Documentation Requirements

Document the severity of the condition and any interventions performed.

Specialty Considerations

Emergency medicine specialists should ensure thorough documentation of the patient's condition.

32000CPT Code

Thoracotomy

Clinical Scenario

Performed for repair of thoracic laceration.

Documentation Requirements

Operative report detailing the procedure and findings.

Specialty Considerations

Trauma surgeons must document all findings and interventions.

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 data collection and reimbursement processes. S21.419 provides a clear distinction for lacerations with penetration into the thoracic cavity, which was less defined in ICD-9.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of thoracic injuries, improving the accuracy of data collection and reimbursement processes. S21.419 provides a clear distinction for lacerations with penetration into the thoracic cavity, which was less defined in ICD-9.

Reimbursement & Billing Impact

reimbursement processes. S21.419 provides a clear distinction for lacerations with penetration into the thoracic cavity, which was less defined in ICD-9.

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 S21.419 and S21.411?

S21.419 is used for lacerations without foreign bodies, while S21.411 is for lacerations with foreign bodies present.