ICD-10 Logo
ICDxICD-10 Medical Coding
ICD-10 Logo
ICDxICD-10 Medical Coding
ICD 10 CodesDiagnoses
ICD 10 CodesDiagnoses
ICD-10 Logo
ICDxICD-10 Medical Coding

Comprehensive ICD-10-CM code reference with AI-powered search capabilities.

© 2025 ICD Code Compass. All rights reserved.

Browse

  • All Chapters
  • All Categories
  • Diagnoses

Tools

  • AI Code Search
ICD-10-CM codes are maintained by the CDC and CMS. This tool is for reference purposes only.
v1.0.0
ICD-10 Guide
ICD-10 CodesS21.452

S21.452

Billable

Open bite of left back wall of thorax with penetration into thoracic cavity

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

Code Description

ICD-10 S21.452 is a billable code used to indicate a diagnosis of open bite of left back wall of thorax with penetration into thoracic cavity.

Key Diagnostic Point:

An open bite of the left back wall of the thorax with penetration into the thoracic cavity is a traumatic injury that occurs when a sharp object or animal bites through the skin and underlying tissues of the thoracic wall, creating an open wound that breaches the thoracic cavity. This type of injury can lead to serious complications, including pneumothorax (air in the pleural space), hemothorax (blood in the pleural space), and potential damage to thoracic organs such as the lungs, heart, and major blood vessels. The clinical presentation may include respiratory distress, chest pain, and signs of shock. Immediate medical intervention is critical to manage the injury, prevent infection, and address any associated complications. Surgical intervention may be required to repair the thoracic wall, control bleeding, and ensure proper lung function. Accurate coding of this injury is essential for appropriate treatment and reimbursement.

Code Complexity Analysis

Complexity Rating: High

High Complexity

Complexity Factors

  • Requires detailed documentation of the mechanism of injury.
  • Involves potential complications that must be assessed and documented.
  • May require multiple codes to capture associated injuries (e.g., pneumothorax, hemothorax).
  • Surgical interventions may vary based on the extent of the injury, necessitating precise coding.

Audit Risk Factors

  • Inadequate documentation of the injury mechanism.
  • Failure to document associated complications.
  • Incorrect coding of additional procedures performed.
  • Lack of clarity in the surgical notes regarding the extent of the injury.

Specialty Focus

Medical Specialties

Trauma Surgery

Documentation Requirements

Detailed operative reports, including descriptions of the injury, surgical interventions, and any complications.

Common Clinical Scenarios

Management of traumatic thoracic injuries, including open bites and stab wounds.

Billing Considerations

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

Emergency Medicine

Documentation Requirements

Thorough initial assessment notes, including vital signs, mechanism of injury, and immediate interventions.

Common Clinical Scenarios

Initial evaluation and stabilization of patients with traumatic chest injuries.

Billing Considerations

Document all findings and interventions to support the diagnosis and any subsequent procedures.

Coding Guidelines

Inclusion Criteria

Use S21.452 When
  • Follow official ICD
  • CM coding guidelines, ensuring that the code is used only when there is clear documentation of an open bite with penetration into the thoracic cavity

Exclusion Criteria

Do NOT use S21.452 When
  • Exclude codes for closed injuries unless specified

Related ICD-10 Codes

Related CPT Codes

32000CPT Code

Thoracentesis

Clinical Scenario

Used to drain fluid from the pleural space in cases of hemothorax.

Documentation Requirements

Document the indication for the procedure and the amount of fluid removed.

Specialty Considerations

Ensure that the procedure is linked to the diagnosis of hemothorax.

39000CPT Code

Thoracotomy

Clinical Scenario

Performed for surgical repair of the thoracic wall and any underlying injuries.

Documentation Requirements

Detailed operative report outlining the procedure performed and findings.

Specialty Considerations

Document all findings and interventions to support the diagnosis.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 has allowed for more specific coding of traumatic injuries, including open bites, which enhances the ability to capture the complexity of these cases and improves data accuracy for treatment and reimbursement.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of traumatic injuries, including open bites, which enhances the ability to capture the complexity of these cases and improves data accuracy for treatment and reimbursement.

Reimbursement & Billing Impact

reimbursement.

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 S21.452 accurately?

Accurate coding of S21.452 is crucial for ensuring appropriate treatment, reimbursement, and tracking of complications associated with open thoracic injuries. It also aids in the collection of data for public health and research purposes.