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ICD-10 Guide
ICD-10 CodesH91.22

H91.22

Billable

Sudden idiopathic hearing loss, left ear

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

Code Description

ICD-10 H91.22 is a billable code used to indicate a diagnosis of sudden idiopathic hearing loss, left ear.

Key Diagnostic Point:

Sudden idiopathic hearing loss (SIHL) is characterized by a rapid onset of hearing loss, typically occurring over a period of 72 hours or less, without an identifiable cause. The left ear is specifically affected in this code. Patients may present with a range of symptoms including a feeling of fullness in the ear, tinnitus (ringing in the ear), and a noticeable decrease in hearing ability. The etiology of SIHL remains largely unknown, although it may be associated with viral infections, vascular disorders, or autoimmune conditions. Diagnosis is primarily clinical, supported by audiometric testing to confirm the degree of hearing loss. Imaging studies may be warranted to rule out structural abnormalities or other causes. Management often includes corticosteroids to reduce inflammation and improve hearing outcomes, although the effectiveness can vary. Early intervention is crucial, as prompt treatment may enhance recovery chances. Follow-up audiological assessments are essential to monitor hearing recovery and guide further management.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Lack of identifiable cause complicates diagnosis.
  • Variability in clinical presentation and recovery.
  • Need for differential diagnosis to rule out other conditions.
  • Potential for co-existing ear disorders.

Audit Risk Factors

  • Inadequate documentation of clinical findings.
  • Failure to document the onset and progression of symptoms.
  • Lack of follow-up notes on hearing recovery.
  • Misclassification with other types of hearing loss.

Specialty Focus

Medical Specialties

Otolaryngology

Documentation Requirements

Detailed history of symptoms, audiometric test results, and treatment plans.

Common Clinical Scenarios

Patients presenting with sudden hearing loss, tinnitus, or ear fullness.

Billing Considerations

Ensure documentation reflects the idiopathic nature and any ruling out of other conditions.

Audiology

Documentation Requirements

Comprehensive audiological evaluations and follow-up assessments.

Common Clinical Scenarios

Patients undergoing hearing tests post-diagnosis of SIHL.

Billing Considerations

Document changes in hearing thresholds and patient responses to treatment.

Coding Guidelines

Inclusion Criteria

Use H91.22 When
  • Follow ICD
  • CM guidelines for coding hearing loss, ensuring specificity in documentation
  • Include details on the onset, duration, and any associated symptoms

Exclusion Criteria

Do NOT use H91.22 When
  • Exclude codes for hearing loss due to known causes

Related ICD-10 Codes

Related CPT Codes

92557CPT Code

Comprehensive audiometry threshold evaluation and speech recognition

Clinical Scenario

Used to assess hearing loss in patients diagnosed with SIHL.

Documentation Requirements

Document the results of the audiometric evaluation and any relevant patient history.

Specialty Considerations

Otolaryngologists and audiologists should collaborate on documentation.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 has allowed for more specific coding of idiopathic hearing loss, improving data accuracy and facilitating better patient management.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of idiopathic hearing loss, improving data accuracy and facilitating better patient management.

Reimbursement & Billing Impact

The transition to ICD-10 has allowed for more specific coding of idiopathic hearing loss, improving data accuracy and facilitating better patient management.

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 is the typical treatment for sudden idiopathic hearing loss?

Treatment often involves corticosteroids to reduce inflammation and improve hearing recovery. Early intervention is crucial for better outcomes.