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ICD-10 Guide
ICD-10 CodesH71.20

H71.20

Billable

Cholesteatoma of mastoid, unspecified ear

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

Code Description

ICD-10 H71.20 is a billable code used to indicate a diagnosis of cholesteatoma of mastoid, unspecified ear.

Key Diagnostic Point:

Cholesteatoma of the mastoid is a destructive and expanding growth of skin cells in the middle ear and/or mastoid process. It often arises as a complication of chronic otitis media, where the eustachian tube dysfunction leads to negative pressure in the middle ear, resulting in the retraction of the tympanic membrane. This retraction can create a pocket that traps skin cells and other debris, leading to the formation of a cholesteatoma. Patients may present with symptoms such as ear discharge, hearing loss, and sometimes pain or fullness in the ear. If left untreated, cholesteatomas can erode surrounding structures, leading to complications such as hearing loss, facial nerve paralysis, or intracranial infections. Diagnosis is typically made through clinical examination and imaging studies, such as CT scans, which can reveal the extent of the disease. Management often involves surgical intervention to remove the cholesteatoma and reconstruct the tympanic membrane, with the goal of preserving or restoring hearing and preventing complications.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Differentiating between cholesteatoma and other ear conditions
  • Need for detailed documentation of symptoms and imaging results
  • Potential for complications requiring additional coding
  • Variability in treatment approaches and surgical interventions

Audit Risk Factors

  • Inadequate documentation of symptoms and clinical findings
  • Failure to document imaging studies that support diagnosis
  • Incorrect coding of associated conditions or complications
  • Lack of clarity on the surgical procedure performed

Specialty Focus

Medical Specialties

Otolaryngology

Documentation Requirements

Detailed clinical notes including history, physical examination findings, imaging results, and treatment plans.

Common Clinical Scenarios

Patients presenting with chronic ear infections, hearing loss, or post-operative follow-ups after cholesteatoma surgery.

Billing Considerations

Ensure clear documentation of the extent of cholesteatoma and any complications to support coding.

Audiology

Documentation Requirements

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

Common Clinical Scenarios

Assessment of hearing loss in patients with diagnosed cholesteatoma.

Billing Considerations

Document the relationship between cholesteatoma and hearing impairment for accurate coding.

Coding Guidelines

Inclusion Criteria

Use H71.20 When
  • Follow the official ICD
  • CM coding guidelines, ensuring accurate documentation of the diagnosis, including the site and any associated conditions
  • 20 is used when the specific ear is not specified

Exclusion Criteria

Do NOT use H71.20 When
No specific exclusions found.

Related ICD-10 Codes

Related CPT Codes

69631CPT Code

Tympanomastoid surgery

Clinical Scenario

Performed to remove cholesteatoma and reconstruct the tympanic membrane.

Documentation Requirements

Operative report detailing the procedure, findings, and any complications.

Specialty Considerations

Otolaryngologists must document the extent of the cholesteatoma and any associated procedures.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 has allowed for more specific coding of cholesteatomas, improving the accuracy of data collection and reimbursement processes. It has also facilitated better tracking of complications and outcomes related to ear diseases.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of cholesteatomas, improving the accuracy of data collection and reimbursement processes. It has also facilitated better tracking of complications and outcomes related to ear diseases.

Reimbursement & Billing Impact

reimbursement processes. It has also facilitated better tracking of complications and outcomes related to ear diseases.

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 primary cause of cholesteatoma?

Cholesteatoma is primarily caused by chronic eustachian tube dysfunction leading to negative pressure in the middle ear, which can result in the retraction of the tympanic membrane and subsequent formation of a cholesteatoma.