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ICD-10 Guide
ICD-10 CodesS21.122

S21.122

Billable

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

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

Code Description

ICD-10 S21.122 is a billable code used to indicate a diagnosis of laceration with foreign body of left front wall of thorax without penetration into thoracic cavity.

Key Diagnostic Point:

S21.122 refers to a laceration on the left front wall of the thorax that is accompanied by a foreign body but does not penetrate the thoracic cavity. This type of injury is often seen in trauma cases, such as those resulting from accidents, falls, or assaults. The presence of a foreign body can complicate the injury, as it may lead to infection or further tissue damage. Clinically, the patient may present with localized pain, swelling, and possibly signs of infection. It is crucial to assess for associated injuries, such as rib fractures, pneumothorax, or hemothorax, which can occur even if the thoracic cavity remains intact. Proper imaging and evaluation are necessary to rule out these complications. Treatment typically involves careful removal of the foreign body, wound care, and monitoring for any signs of complications. Surgical intervention may be required if there is significant tissue damage or if the foreign body is deeply embedded.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Presence of foreign body complicates the injury.
  • Need for thorough assessment to rule out associated thoracic injuries.
  • Variability in documentation based on the mechanism of injury.
  • Potential for surgical intervention increases coding complexity.

Audit Risk Factors

  • Inadequate documentation of the foreign body.
  • Failure to document associated injuries.
  • Misclassification of the injury severity.
  • Lack of clarity on the mechanism of injury.

Specialty Focus

Medical Specialties

Trauma Surgery

Documentation Requirements

Detailed descriptions of the injury mechanism, foreign body characteristics, and any surgical interventions performed.

Common Clinical Scenarios

Trauma from motor vehicle accidents, falls, or penetrating injuries.

Billing Considerations

Ensure all associated injuries are documented to support coding for potential complications.

Emergency Medicine

Documentation Requirements

Immediate assessment findings, imaging results, and treatment provided in the emergency setting.

Common Clinical Scenarios

Patients presenting with acute chest trauma and foreign bodies.

Billing Considerations

Timely documentation is critical to capture the urgency and nature of the injury.

Coding Guidelines

Inclusion Criteria

Use S21.122 When
  • According to ICD
  • 10 guidelines, S21
  • 122 should be used when the laceration is confirmed to have a foreign body and does not penetrate the thoracic cavity
  • Coders must ensure that the documentation supports the diagnosis and that all relevant details are included

Exclusion Criteria

Do NOT use S21.122 When
No specific exclusions found.

Related ICD-10 Codes

Related CPT Codes

12001CPT Code

Simple repair of superficial wounds

Clinical Scenario

Used for the repair of the laceration after foreign body removal.

Documentation Requirements

Document the size of the wound and the method of repair.

Specialty Considerations

Trauma surgeons may need to provide additional details on the complexity of the repair.

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 helps in better tracking of injury patterns and outcomes, which can improve patient care and resource allocation.

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 helps in better tracking of injury patterns and outcomes, which can improve patient care and resource allocation.

Reimbursement & Billing Impact

The transition to ICD-10 has allowed for more specific coding of injuries, including those with foreign bodies. This specificity helps in better tracking of injury patterns and outcomes, which can improve patient care and resource allocation.

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 should be documented to support the use of S21.122?

Documentation should include the mechanism of injury, details about the foreign body, any associated injuries, and the treatment provided. Clear notes on whether the thoracic cavity is penetrated are crucial.