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ICD-10 Guide
ICD-10 CodesS21.34

S21.34

Billable

Puncture wound with foreign body of front wall of thorax with penetration into thoracic cavity

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

Code Description

ICD-10 S21.34 is a billable code used to indicate a diagnosis of puncture wound with foreign body of front wall of thorax with penetration into thoracic cavity.

Key Diagnostic Point:

S21.34 describes a puncture wound to the front wall of the thorax that has penetrated into the thoracic cavity and involves a foreign body. This type of injury is often the result of trauma, such as a stab wound or a gunshot wound, and can lead to serious complications including pneumothorax, hemothorax, and potential cardiac injuries. The presence of a foreign body complicates the clinical picture, as it may necessitate surgical intervention to remove the object and repair any damage to the thoracic structures. Clinicians must assess for rib fractures, which can occur alongside such injuries, and monitor for signs of respiratory distress or hemodynamic instability. The management of these patients often involves imaging studies, such as chest X-rays or CT scans, to evaluate the extent of the injury and guide treatment decisions. Surgical interventions may include thoracotomy or video-assisted thoracoscopic surgery (VATS) to address any internal injuries and ensure proper healing.

Code Complexity Analysis

Complexity Rating: High

High Complexity

Complexity Factors

  • Presence of foreign body complicates diagnosis and treatment.
  • Potential for multiple associated injuries (e.g., rib fractures, pneumothorax).
  • Need for detailed documentation of the mechanism of injury.
  • Variability in surgical interventions based on injury severity.

Audit Risk Factors

  • Inadequate documentation of the mechanism of injury.
  • Failure to document the presence and type of foreign body.
  • Omission of associated injuries such as pneumothorax or hemothorax.
  • Inconsistent coding of surgical interventions.

Specialty Focus

Medical Specialties

Trauma Surgery

Documentation Requirements

Detailed operative reports, imaging studies, and follow-up notes.

Common Clinical Scenarios

Management of stab wounds, gunshot wounds, and other penetrating injuries.

Billing Considerations

Accurate documentation of the extent of injury and any surgical interventions performed.

Emergency Medicine

Documentation Requirements

Initial assessment notes, imaging results, and treatment plans.

Common Clinical Scenarios

Acute management of trauma patients presenting with chest injuries.

Billing Considerations

Timely documentation of vital signs and interventions to support coding.

Coding Guidelines

Inclusion Criteria

Use S21.34 When
  • According to ICD
  • 10 guidelines, S21
  • 34 should be used when there is a documented puncture wound with a foreign body that has penetrated the thoracic cavity
  • Coders must ensure that the documentation supports the diagnosis and includes details about the foreign body and any associated injuries

Exclusion Criteria

Do NOT use S21.34 When
No specific exclusions found.

Related ICD-10 Codes

Related CPT Codes

32000CPT Code

Thoracentesis

Clinical Scenario

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

Documentation Requirements

Document the indication for the procedure, the amount of fluid removed, and the patient's response.

Specialty Considerations

Emergency medicine and pulmonology may frequently perform this procedure.

32100CPT Code

Thoracotomy

Clinical Scenario

Performed to access the thoracic cavity for repair of injuries.

Documentation Requirements

Detailed operative report including the findings and interventions performed.

Specialty Considerations

Trauma surgery and cardiothoracic surgery are involved in these cases.

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 those with foreign bodies. S21.34 provides a clear distinction for puncture wounds that penetrate the thoracic cavity, improving data accuracy and facilitating better patient management.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of injuries, including those with foreign bodies. S21.34 provides a clear distinction for puncture wounds that penetrate the thoracic cavity, improving data accuracy and facilitating better patient management.

Reimbursement & Billing Impact

reimbursement and to avoid denials.

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 concern with a puncture wound to the thorax?

The primary concern is the potential for serious internal injuries, including pneumothorax, hemothorax, and damage to vital organs such as the heart and lungs.

How should associated injuries be documented?

All associated injuries should be documented in detail, including imaging findings and clinical assessments, to support accurate coding and billing.