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ICD-10 Guide
ICD-10 CodesH70.22

H70.22

Billable

Chronic petrositis

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

Code Description

ICD-10 H70.22 is a billable code used to indicate a diagnosis of chronic petrositis.

Key Diagnostic Point:

Chronic petrositis is a persistent inflammation of the petrous part of the temporal bone, often associated with chronic otitis media or mastoiditis. This condition can lead to complications such as hearing loss, vestibular dysfunction, and cranial nerve involvement. Patients typically present with symptoms including ear pain, hearing impairment, and possibly vertigo. Diagnosis is primarily clinical, supported by imaging studies such as CT or MRI to assess the extent of the disease and rule out other conditions. Management may involve antibiotic therapy, surgical intervention such as tympanomastoid surgery, or other otologic procedures to address underlying causes. Chronic petrositis can significantly impact a patient's quality of life due to its association with chronic ear infections and potential complications, necessitating careful monitoring and treatment.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Differentiating between acute and chronic forms of petrositis
  • Need for comprehensive documentation of symptoms and treatment history
  • Potential for co-morbid conditions affecting coding
  • Variability in clinical presentation among patients

Audit Risk Factors

  • Inadequate documentation of chronicity
  • Failure to link symptoms to the diagnosis
  • Misclassification of acute versus chronic conditions
  • Lack of imaging results in the medical record

Specialty Focus

Medical Specialties

Otolaryngology

Documentation Requirements

Detailed history of ear symptoms, imaging results, and treatment plans.

Common Clinical Scenarios

Patients with recurrent ear infections, hearing loss, or vertigo.

Billing Considerations

Ensure documentation reflects the chronic nature of the condition and any surgical interventions performed.

Radiology

Documentation Requirements

Clear imaging reports indicating the presence of petrositis and any associated complications.

Common Clinical Scenarios

Imaging studies requested for patients with chronic ear symptoms.

Billing Considerations

Radiologists should provide detailed descriptions of findings to support the diagnosis.

Coding Guidelines

Inclusion Criteria

Use H70.22 When
  • According to ICD
  • 10 guidelines, chronic petrositis is classified under diseases of the ear and mastoid process
  • Coders should ensure that the diagnosis is supported by clinical documentation and imaging studies

Exclusion Criteria

Do NOT use H70.22 When
  • Exclusion criteria include conditions that do not involve chronic inflammation of the petrous bone

Related ICD-10 Codes

Related CPT Codes

69631CPT Code

Tympanomastoid surgery

Clinical Scenario

Performed on patients with chronic petrositis to remove infected tissue.

Documentation Requirements

Operative reports detailing the procedure and findings.

Specialty Considerations

Otolaryngologists should ensure that the surgical indication aligns with 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 conditions like petrositis, improving the accuracy of diagnoses and treatment tracking. This specificity aids in better patient management and resource allocation.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of chronic conditions like petrositis, improving the accuracy of diagnoses and treatment tracking. This specificity aids in better patient management and resource allocation.

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 are the common symptoms of chronic petrositis?

Common symptoms include persistent ear pain, hearing loss, and vertigo. Patients may also experience drainage from the ear and a history of recurrent ear infections.

How is chronic petrositis diagnosed?

Diagnosis is typically made based on clinical history, physical examination, and imaging studies such as CT or MRI that reveal inflammation of the petrous bone.

What treatments are available for chronic petrositis?

Treatment options may include antibiotics, surgical intervention to remove infected tissue, and management of associated symptoms like hearing loss.