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ICD-10 Guide
ICD-10 CodesS21.349

S21.349

Billable

Puncture wound with 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 S21.349 is a billable code used to indicate a diagnosis of puncture wound with foreign body of unspecified front wall of thorax with penetration into thoracic cavity.

Key Diagnostic Point:

S21.349 refers to a puncture wound that has penetrated the front wall of the thorax, potentially involving the thoracic cavity. This type of injury is often associated with trauma from sharp objects, such as knives or projectiles, and can lead to serious complications including pneumothorax (air in the pleural space), hemothorax (blood in the pleural space), rib fractures, and 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. Patients may present with respiratory distress, chest pain, and signs of shock, requiring immediate assessment and management. Diagnostic imaging, such as chest X-rays or CT scans, is crucial for evaluating the extent of the injury and guiding 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., pneumothorax, hemothorax).
  • Need for surgical intervention increases documentation requirements.
  • Variability in clinical presentation and severity of injury.

Audit Risk Factors

  • Inadequate documentation of the mechanism of injury.
  • Failure to document the presence and type of foreign body.
  • Lack of imaging reports to support the diagnosis.
  • Insufficient detail on associated injuries (e.g., pneumothorax, hemothorax).

Specialty Focus

Medical Specialties

Trauma Surgery

Documentation Requirements

Detailed operative reports, imaging studies, and notes on the mechanism of injury.

Common Clinical Scenarios

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

Billing Considerations

Ensure all associated injuries are documented to support coding.

Emergency Medicine

Documentation Requirements

Comprehensive assessment notes, including vital signs and initial management.

Common Clinical Scenarios

Acute presentation of trauma patients with chest injuries.

Billing Considerations

Document all interventions performed in the emergency setting.

Coding Guidelines

Inclusion Criteria

Use S21.349 When
  • According to ICD
  • 10 guidelines, S21
  • 349 should be used when a puncture wound with a foreign body is confirmed, and there is evidence of penetration into the thoracic cavity
  • Coders must ensure that the documentation supports the diagnosis and reflects the complexity of the injury

Exclusion Criteria

Do NOT use S21.349 When
No specific exclusions found.

Related ICD-10 Codes

Related CPT Codes

32000CPT Code

Thoracentesis, needle drainage of pleural space

Clinical Scenario

Used when a patient presents with a hemothorax or pneumothorax requiring drainage.

Documentation Requirements

Document the indication for the procedure, the amount of fluid drained, and any complications.

Specialty Considerations

Ensure that the procedure is linked to the diagnosis of S21.349.

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. This specificity improves data accuracy and enhances the ability to track outcomes and resource utilization.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of injuries, including those with foreign bodies. This specificity improves data accuracy and enhances the ability to track outcomes and resource utilization.

Reimbursement & Billing Impact

reimbursement.

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 S21.349 accurately?

Accurate coding of S21.349 is crucial for proper reimbursement, tracking of trauma cases, and ensuring that patients receive appropriate care based on the severity of their injuries.