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ICD-10 Guide
ICD-10 CodesS21.249

S21.249

Billable

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

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

Code Description

ICD-10 S21.249 is a billable code used to indicate a diagnosis of puncture wound with foreign body of unspecified back wall of thorax without penetration into thoracic cavity.

Key Diagnostic Point:

S21.249 refers to a puncture wound located on the back wall of the thorax, which is characterized by the presence of a foreign body. This injury does not penetrate the thoracic cavity, meaning that vital structures such as the lungs, heart, and major blood vessels remain intact. Puncture wounds can occur from various sources, including sharp objects, projectiles, or even animal bites. The management of such wounds typically involves thorough cleaning, assessment for foreign bodies, and monitoring for potential complications such as infection or localized hematoma. In cases where the foreign body is retained, surgical intervention may be necessary to remove it. Clinicians must carefully evaluate the wound to rule out associated injuries, such as rib fractures or pneumothorax, which can complicate the clinical picture. Proper documentation is crucial to ensure accurate coding and billing, as well as to facilitate appropriate treatment planning.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Need for precise documentation of the location and nature of the wound
  • Differentiation from similar codes related to thoracic injuries
  • Assessment of associated injuries that may complicate the case
  • Potential for surgical intervention requiring additional coding

Audit Risk Factors

  • Inadequate documentation of the mechanism of injury
  • Failure to document the presence or absence of foreign bodies
  • Misclassification of the wound type or location
  • Inconsistent coding of associated injuries

Specialty Focus

Medical Specialties

Emergency Medicine

Documentation Requirements

Detailed account of the injury mechanism, assessment findings, and treatment provided.

Common Clinical Scenarios

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

Billing Considerations

Ensure that all associated injuries are documented to avoid undercoding.

Surgery

Documentation Requirements

Operative reports detailing the procedure for foreign body removal and any associated repairs.

Common Clinical Scenarios

Surgical intervention for retained foreign bodies or complications from the puncture wound.

Billing Considerations

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

Coding Guidelines

Inclusion Criteria

Use S21.249 When
  • According to ICD
  • CM guidelines, S21
  • 249 should be used when the documentation specifies a puncture wound with a foreign body located on the back wall of the thorax without thoracic cavity penetration
  • It is essential to ensure that the documentation supports the diagnosis and that any associated injuries are coded appropriately

Exclusion Criteria

Do NOT use S21.249 When
No specific exclusions found.

Related ICD-10 Codes

Related CPT Codes

10120CPT Code

Incision and removal of foreign body, subcutaneous tissue

Clinical Scenario

Used when a foreign body is removed from the puncture wound.

Documentation Requirements

Operative report detailing the procedure and findings.

Specialty Considerations

Ensure that the procedure is documented in the context of the injury.

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 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 puncture wounds. This specificity aids in better tracking of injury types 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 puncture wounds. This specificity aids in better tracking of injury types 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 is the difference between S21.249 and S21.248?

S21.249 specifically refers to a puncture wound with a foreign body of the back wall of the thorax, while S21.248 refers to a puncture wound with a foreign body of other thoracic walls. The distinction is important for accurate coding based on the injury's location.