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ICD-10 Guide
ICD-10 CodesS21.24

S21.24

Billable

Puncture wound with foreign body of back wall of thorax without penetration into thoracic cavity

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

Code Description

ICD-10 S21.24 is a billable code used to indicate a diagnosis of puncture wound with foreign body of back wall of thorax without penetration into thoracic cavity.

Key Diagnostic Point:

A puncture wound with a foreign body in the back wall of the thorax refers to an injury where an object has penetrated the skin and underlying tissues of the thoracic wall but has not breached the thoracic cavity itself. This type of injury can occur due to various mechanisms, including trauma from sharp objects, gunshot wounds, or impalement injuries. Clinically, such wounds may present with localized pain, swelling, and potential signs of infection. Importantly, while the thoracic cavity remains intact, there is a risk of associated injuries, such as rib fractures, pneumothorax, or hemothorax, which must be evaluated through imaging studies. The management of these injuries often involves careful wound care, potential surgical intervention to remove the foreign body, and monitoring for complications. In cases where the foreign body is deeply embedded or if there are signs of internal injury, surgical exploration may be warranted to ensure no damage to underlying structures, including the lungs or major vessels. Accurate coding of this condition is crucial for appropriate treatment and reimbursement.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Differentiating between types of thoracic injuries
  • Identifying associated complications like pneumothorax or hemothorax
  • Documenting the presence and type of foreign body
  • Understanding the need for surgical intervention

Audit Risk Factors

  • Inadequate documentation of the mechanism of injury
  • Failure to document associated injuries or complications
  • Misclassification of the wound type (puncture vs. laceration)
  • Lack of clarity regarding the foreign body involved

Specialty Focus

Medical Specialties

Emergency Medicine

Documentation Requirements

Detailed account of the mechanism of injury, physical examination findings, and any imaging results.

Common Clinical Scenarios

Patients presenting with stab wounds, gunshot wounds, or accidental punctures.

Billing Considerations

Documentation must clearly indicate whether the thoracic cavity is involved and any immediate interventions performed.

General Surgery

Documentation Requirements

Operative reports detailing the removal of foreign bodies and any associated repairs.

Common Clinical Scenarios

Surgical intervention for foreign body removal or repair of thoracic wall injuries.

Billing Considerations

Accurate coding of surgical procedures performed in conjunction with the injury is essential.

Coding Guidelines

Inclusion Criteria

Use S21.24 When
  • According to ICD
  • 10 guidelines, this code should be used when the documentation specifies a puncture wound with a foreign body without penetration into the thoracic cavity
  • It is essential to ensure that the documentation supports the diagnosis and that any associated injuries are coded appropriately

Exclusion Criteria

Do NOT use S21.24 When
No specific exclusions found.

Related ICD-10 Codes

Related CPT Codes

10120CPT Code

Incision and drainage of abscess

Clinical Scenario

Used if the puncture wound becomes infected and requires drainage.

Documentation Requirements

Document the size, location, and nature of the abscess.

Specialty Considerations

Ensure that the procedure is linked to the diagnosis of the puncture wound.

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 puncture wounds. This specificity aids in better tracking of injury types and associated complications, improving patient care and resource allocation.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of injuries, including puncture wounds. This specificity aids in better tracking of injury types and associated complications, improving patient care and resource allocation.

Reimbursement & Billing Impact

The transition to ICD-10 has allowed for more specific coding of injuries, including puncture wounds. This specificity aids in better tracking of injury types and associated complications, improving 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 is the difference between S21.24 and S21.23?

S21.24 specifies a puncture wound with a foreign body, while S21.23 refers to a puncture wound without a foreign body. Accurate documentation is essential to determine which code to use.