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ICD-10 Guide
ICD-10 CodesS21.129

S21.129

Billable

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

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

Code Description

ICD-10 S21.129 is a billable code used to indicate a diagnosis of laceration with foreign body of unspecified front wall of thorax without penetration into thoracic cavity.

Key Diagnostic Point:

S21.129 describes a laceration of the front wall of the thorax that is accompanied by a foreign body but does not penetrate the thoracic cavity. This condition typically arises from traumatic incidents such as accidents or assaults where sharp objects or debris can cause skin and soft tissue injuries. The front wall of the thorax includes the sternum and the ribs, which protect vital organs such as the heart and lungs. While the laceration itself may not penetrate deeper structures, the presence of a foreign body can lead to complications such as infection, inflammation, or further injury if not properly managed. Clinicians must assess the extent of the injury, monitor for signs of pneumothorax or hemothorax, and determine if surgical intervention is necessary to remove the foreign body or repair any associated damage. Accurate coding is essential for appropriate treatment planning and reimbursement.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Determining the exact location of the laceration
  • Identifying the type of foreign body involved
  • Differentiating between superficial and deeper injuries
  • Assessing for potential complications such as pneumothorax

Audit Risk Factors

  • Inadequate documentation of the foreign body type
  • Failure to note the absence of thoracic cavity penetration
  • Misclassification of the injury severity
  • Lack of follow-up documentation for complications

Specialty Focus

Medical Specialties

Emergency Medicine

Documentation Requirements

Detailed description of the injury mechanism, foreign body characteristics, and any immediate interventions performed.

Common Clinical Scenarios

Patients presenting with trauma from accidents, falls, or assaults with visible lacerations.

Billing Considerations

Ensure thorough documentation of vital signs and any imaging studies performed to rule out deeper injuries.

Surgery

Documentation Requirements

Operative reports detailing the removal of foreign bodies and any repair of lacerations.

Common Clinical Scenarios

Surgical intervention for lacerations requiring exploration or repair.

Billing Considerations

Document the surgical approach and any complications encountered during the procedure.

Coding Guidelines

Inclusion Criteria

Use S21.129 When
  • Follow the official ICD
  • CM coding guidelines, ensuring that the laceration is documented as not penetrating the thoracic cavity
  • Include any relevant details about the foreign body and associated injuries

Exclusion Criteria

Do NOT use S21.129 When
No specific exclusions found.

Related ICD-10 Codes

Related CPT Codes

12001CPT Code

Simple repair of superficial wounds

Clinical Scenario

Used when a laceration is repaired without complications.

Documentation Requirements

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

Specialty Considerations

Ensure that the repair method aligns with the complexity of the laceration.

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 aids in better tracking of trauma cases and improves the accuracy of treatment planning.

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 aids in better tracking of trauma cases and improves the accuracy of treatment planning.

Reimbursement & Billing Impact

The transition to ICD-10 has allowed for more specific coding of injuries, including those with foreign bodies. This specificity aids in better tracking of trauma cases and improves the accuracy of treatment planning.

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 S21.129 accurately?

Accurate coding of S21.129 is crucial for proper treatment planning, reimbursement, and tracking of trauma cases. It ensures that healthcare providers are compensated for the care provided and helps in the analysis of injury patterns.