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ICD-10 Guide
ICD-10 CodesS21.342

S21.342

Billable

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

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

Code Description

ICD-10 S21.342 is a billable code used to indicate a diagnosis of puncture wound with foreign body of left front wall of thorax with penetration into thoracic cavity.

Key Diagnostic Point:

A puncture wound with a foreign body in the left front wall of the thorax that penetrates into the thoracic cavity is a serious injury that can lead to various complications. This type of injury often results from penetrating trauma, such as gunshot wounds, stab wounds, or impalement injuries. The presence of a foreign body can complicate the clinical picture, as it may cause additional damage to the thoracic structures, including the lungs, heart, and major blood vessels. Patients may present with symptoms such as chest pain, difficulty breathing, and signs of shock. The injury can lead to pneumothorax (air in the pleural space), hemothorax (blood in the pleural space), rib fractures, and potential cardiac injuries. Immediate medical intervention is critical, often requiring thoracotomy or other surgical procedures to remove the foreign body and repair any damaged structures. The management of such injuries necessitates a multidisciplinary approach, including trauma surgery, critical care, and possibly cardiology, depending on the extent of the injury.

Code Complexity Analysis

Complexity Rating: High

High Complexity

Complexity Factors

  • Requires detailed documentation of the mechanism of injury.
  • Involves multiple potential complications that must be assessed.
  • Need for precise anatomical localization of the injury.
  • Potential for associated injuries that must be coded accurately.

Audit Risk Factors

  • Inadequate documentation of the mechanism of injury.
  • Failure to document the presence and type of foreign body.
  • Lack of clarity regarding associated injuries.
  • Inconsistent coding of complications such as pneumothorax or 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 surgical interventions and complications are documented to support coding.

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

Accurate documentation of vital signs and immediate interventions is crucial.

Coding Guidelines

Inclusion Criteria

Use S21.342 When
  • According to ICD
  • 10 guidelines, this code 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 S21.342 When
No specific exclusions found.

Related ICD-10 Codes

Related CPT Codes

32000CPT Code

Thoracentesis

Clinical Scenario

Used for drainage of pleural effusion or hemothorax.

Documentation Requirements

Document indication for procedure and findings.

Specialty Considerations

Ensure compliance with local guidelines for procedural coding.

39010CPT Code

Thoracotomy

Clinical Scenario

Performed for exploration and repair of thoracic injuries.

Documentation Requirements

Detailed operative report required.

Specialty Considerations

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 injuries, including the ability to capture the presence of foreign bodies and associated complications, which enhances the accuracy of medical records and billing.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of injuries, including the ability to capture the presence of foreign bodies and associated complications, which enhances the accuracy of medical records and billing.

Reimbursement & Billing Impact

billing.

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 documentation is required to support the use of S21.342?

Documentation must include details about the mechanism of injury, the presence and type of foreign body, any associated injuries, and the treatment provided, including surgical interventions.