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ICD-10 Guide
ICD-10 CodesH70.223

H70.223

Billable

Chronic petrositis, bilateral

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

Code Description

ICD-10 H70.223 is a billable code used to indicate a diagnosis of chronic petrositis, bilateral.

Key Diagnostic Point:

Chronic petrositis is a rare inflammatory condition affecting the petrous part of the temporal bone, often associated with chronic otitis media or mastoiditis. In bilateral cases, both sides of the petrous bone are involved, leading to potential complications such as hearing loss, vestibular dysfunction, and facial nerve involvement. Clinically, patients may present with persistent ear pain, hearing impairment, tinnitus, and balance disturbances. Diagnosis typically involves imaging studies such as CT or MRI to visualize the extent of the inflammation and rule out other conditions. Management may include antibiotic therapy, surgical intervention to drain infected material, or tympanostomy tubes to facilitate ventilation of the middle ear. Chronic petrositis can lead to significant morbidity if not adequately treated, making early diagnosis and intervention crucial.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Requires understanding of ear anatomy and related conditions
  • Differentiation from other ear disorders like mastoiditis
  • Potential for co-morbid conditions affecting coding
  • Need for precise documentation of clinical findings

Audit Risk Factors

  • Inadequate documentation of bilateral involvement
  • Failure to document associated symptoms or complications
  • Misclassification with other ear conditions
  • Lack of imaging studies to support diagnosis

Specialty Focus

Medical Specialties

Otolaryngology

Documentation Requirements

Detailed clinical notes on symptoms, imaging results, and treatment plans.

Common Clinical Scenarios

Patients presenting with chronic ear infections, hearing loss, or balance issues.

Billing Considerations

Ensure documentation reflects the chronic nature and bilateral involvement for accurate coding.

Radiology

Documentation Requirements

Clear imaging reports indicating the presence of inflammation in the petrous bone.

Common Clinical Scenarios

Imaging studies performed for patients with suspected chronic petrositis.

Billing Considerations

Radiologists should specify findings related to bilateral involvement to support coding.

Coding Guidelines

Inclusion Criteria

Use H70.223 When
  • Follow official ICD
  • 10 coding guidelines, ensuring accurate documentation of bilateral involvement
  • Include relevant clinical findings and imaging results to support the diagnosis

Exclusion Criteria

Do NOT use H70.223 When
No specific exclusions found.

Related ICD-10 Codes

Related CPT Codes

69436CPT Code

Tympanostomy, bilateral

Clinical Scenario

Used in conjunction with chronic petrositis management to facilitate drainage.

Documentation Requirements

Document the need for tympanostomy due to chronic ear issues.

Specialty Considerations

Otolaryngologists should ensure clear linkage between the procedure and 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 chronic petrositis, enabling better tracking of the condition and its management. This specificity aids in research and treatment outcomes.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of chronic petrositis, enabling better tracking of the condition and its management. This specificity aids in research and treatment outcomes.

Reimbursement & Billing Impact

The transition to ICD-10 has allowed for more specific coding of chronic petrositis, enabling better tracking of the condition and its management. This specificity aids in research and treatment outcomes.

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 chronic petrositis?

Common symptoms include persistent ear pain, hearing loss, tinnitus, and balance disturbances. Patients may also experience facial nerve symptoms if the condition progresses.