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v1.0.0
ICD-10 Guide
ICD-10 CodesH61.81

H61.81

Billable

Exostosis of external canal

BILLABLE STATUSYes
IMPLEMENTATION DATEOctober 1, 2015
LAST UPDATED09/12/2025

Code Description

ICD-10 H61.81 is a billable code used to indicate a diagnosis of exostosis of external canal.

Key Diagnostic Point:

Exostosis of the external auditory canal, commonly referred to as surfer's ear, is characterized by the formation of bony growths in the ear canal. These growths are typically bilateral and can lead to narrowing of the canal, resulting in symptoms such as hearing loss, recurrent ear infections, and discomfort. The condition is often associated with prolonged exposure to cold water and wind, which stimulates bone growth. Patients may present with conductive hearing loss due to obstruction, otorrhea, or a sensation of fullness in the ear. Diagnosis is primarily clinical, supported by otoscopic examination revealing bony protrusions. In some cases, imaging studies may be warranted to assess the extent of the exostosis and rule out other pathologies. Management may include monitoring for asymptomatic cases, while symptomatic patients may require surgical intervention to remove the exostosis and restore normal ear canal function. Post-operative care is crucial to prevent complications such as infection or recurrence.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Variability in clinical presentation and symptoms
  • Need for precise documentation of symptoms and interventions
  • Potential for co-existing conditions affecting coding
  • Differentiation from other ear canal conditions

Audit Risk Factors

  • Inadequate documentation of clinical findings
  • Failure to document the rationale for surgical intervention
  • Misclassification of the condition as a benign growth
  • Lack of follow-up documentation post-surgery

Specialty Focus

Medical Specialties

Otolaryngology

Documentation Requirements

Detailed history of symptoms, physical examination findings, and imaging results if applicable.

Common Clinical Scenarios

Patients presenting with hearing loss, recurrent otitis externa, or discomfort in the ear canal.

Billing Considerations

Ensure clear documentation of the extent of exostosis and any surgical interventions performed.

Audiology

Documentation Requirements

Audiometric evaluations and reports detailing the impact of exostosis on hearing.

Common Clinical Scenarios

Patients undergoing hearing assessments due to suspected conductive hearing loss.

Billing Considerations

Document the relationship between exostosis and hearing impairment clearly.

Coding Guidelines

Inclusion Criteria

Use H61.81 When
  • Follow official ICD
  • CM coding guidelines, ensuring accurate documentation of the condition's severity and any associated symptoms
  • Include additional codes for related conditions such as hearing loss or infections if applicable

Exclusion Criteria

Do NOT use H61.81 When
No specific exclusions found.

Related ICD-10 Codes

Related CPT Codes

69631CPT Code

Exostosis removal, external auditory canal

Clinical Scenario

Used when surgical intervention is performed to remove exostosis.

Documentation Requirements

Document the extent of the exostosis and the surgical approach used.

Specialty Considerations

Otolaryngologists should ensure clear documentation of indications for surgery.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 has allowed for more specific coding of ear conditions, improving the accuracy of diagnoses and treatment tracking for conditions like exostosis.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of ear conditions, improving the accuracy of diagnoses and treatment tracking for conditions like exostosis.

Reimbursement & Billing Impact

The transition to ICD-10 has allowed for more specific coding of ear conditions, improving the accuracy of diagnoses and treatment tracking for conditions like exostosis.

Resources

Clinical References

  • •
    American Academy of Otolaryngology - Head and Neck Surgery

Coding & Billing References

  • •
    American Academy of Otolaryngology - Head and Neck Surgery

Frequently Asked Questions

What are the common symptoms of exostosis of the external canal?

Common symptoms include hearing loss, a sensation of fullness in the ear, and recurrent ear infections. Patients may also experience discomfort or pain in the ear canal.

How is exostosis diagnosed?

Diagnosis is primarily clinical, based on otoscopic examination revealing bony growths in the ear canal. Imaging may be used to assess the extent of the condition.

What treatment options are available for exostosis?

Treatment options range from observation in asymptomatic cases to surgical removal of the exostosis in symptomatic patients.