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ICD-10 Guide
ICD-10 CodesS21.319

S21.319

Billable

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

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

Code Description

ICD-10 S21.319 is a billable code used to indicate a diagnosis of laceration without foreign body of unspecified front wall of thorax with penetration into thoracic cavity.

Key Diagnostic Point:

S21.319 describes a laceration of the front wall of the thorax that does not involve a foreign body and penetrates into the thoracic cavity. This type of injury is often the result of blunt or penetrating trauma, such as from a knife or a gunshot wound. The thoracic cavity houses vital organs, including the heart and lungs, making such injuries potentially life-threatening. Clinically, patients may present with symptoms such as chest pain, difficulty breathing, or signs of shock. Complications can include pneumothorax (air in the pleural space), hemothorax (blood in the pleural space), rib fractures, and cardiac injuries. Immediate assessment and intervention are crucial, often requiring imaging studies like chest X-rays or CT scans to evaluate the extent of the injury. Surgical intervention may be necessary to repair the laceration and address any associated injuries to the thoracic organs. Accurate coding of this condition is essential for appropriate treatment and reimbursement.

Code Complexity Analysis

Complexity Rating: High

High Complexity

Complexity Factors

  • Requires detailed documentation of the mechanism of injury.
  • Need for differentiation between types of thoracic injuries.
  • Potential for associated injuries complicating the clinical picture.
  • Variability in presentation and treatment based on injury severity.

Audit Risk Factors

  • Inadequate documentation of the mechanism of injury.
  • Failure to specify associated injuries.
  • Misclassification of the type of laceration.
  • Lack of imaging or surgical notes to support the diagnosis.

Specialty Focus

Medical Specialties

Emergency Medicine

Documentation Requirements

Detailed notes on the mechanism of injury, vital signs, and initial assessment findings.

Common Clinical Scenarios

Patients presenting with stab wounds or gunshot wounds to the chest.

Billing Considerations

Timely documentation is critical due to the acute nature of injuries.

Thoracic Surgery

Documentation Requirements

Operative reports detailing the surgical intervention and findings.

Common Clinical Scenarios

Patients requiring surgical repair of thoracic lacerations or associated organ injuries.

Billing Considerations

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

Coding Guidelines

Inclusion Criteria

Use S21.319 When
  • According to ICD
  • CM guidelines, this code should be used when the laceration is documented as penetrating into the thoracic cavity without the presence of a foreign body
  • Coders must ensure that the documentation supports the diagnosis and that any associated injuries are also coded appropriately

Exclusion Criteria

Do NOT use S21.319 When
No specific exclusions found.

Related ICD-10 Codes

Related CPT Codes

32000CPT Code

Thoracotomy, exploratory

Clinical Scenario

Used when surgical intervention is required for penetrating thoracic injuries.

Documentation Requirements

Operative report detailing the procedure and findings.

Specialty Considerations

Thoracic surgeons must document the extent of the injury and any repairs performed.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 has allowed for greater specificity in coding thoracic injuries, improving the accuracy of patient records and reimbursement processes. S21.319 provides a clear classification for lacerations penetrating the thoracic cavity without foreign bodies, which was less specific in ICD-9.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for greater specificity in coding thoracic injuries, improving the accuracy of patient records and reimbursement processes. S21.319 provides a clear classification for lacerations penetrating the thoracic cavity without foreign bodies, which was less specific in ICD-9.

Reimbursement & Billing Impact

reimbursement processes. S21.319 provides a clear classification for lacerations penetrating the thoracic cavity without foreign bodies, which was less specific 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 significance of specifying 'without foreign body'?

Specifying 'without foreign body' is crucial as it differentiates the type of injury and impacts the treatment approach and coding accuracy.