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v1.0.0
ICD-10 Guide
ICD-10 CodesH70.891

H70.891

Billable

Other mastoiditis and related conditions, right ear

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

Code Description

ICD-10 H70.891 is a billable code used to indicate a diagnosis of other mastoiditis and related conditions, right ear.

Key Diagnostic Point:

H70.891 refers to other forms of mastoiditis affecting the right ear, which is an inflammatory condition of the mastoid process, typically resulting from an infection that spreads from the middle ear (otitis media). Clinical presentation may include ear pain, fever, drainage from the ear, and hearing loss. Patients may also experience systemic symptoms such as malaise or irritability in children. Diagnostic criteria often involve a combination of clinical evaluation, imaging studies (such as CT scans), and audiometric testing to assess hearing loss. Management typically includes antibiotic therapy, and in severe cases, surgical intervention such as mastoidectomy may be necessary to remove infected tissue. Accurate coding requires careful documentation of the specific type of mastoiditis, associated symptoms, and any surgical procedures performed.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Variety of underlying causes for mastoiditis
  • Differentiation from other ear conditions like otitis media
  • Potential for surgical intervention complicating coding
  • Need for precise documentation of symptoms and treatment

Audit Risk Factors

  • Inadequate documentation of clinical findings
  • Failure to specify the type of mastoiditis
  • Misalignment between diagnosis and treatment provided
  • Inconsistent coding of associated conditions

Specialty Focus

Medical Specialties

Otolaryngology

Documentation Requirements

Detailed clinical notes on symptoms, diagnostic tests, and treatment plans.

Common Clinical Scenarios

Patients presenting with ear pain, fever, and drainage; post-operative follow-ups after mastoid surgery.

Billing Considerations

Ensure documentation reflects the severity and type of mastoiditis for accurate coding.

Pediatrics

Documentation Requirements

Thorough history and physical examination notes, including developmental milestones and family history.

Common Clinical Scenarios

Children with recurrent ear infections leading to mastoiditis.

Billing Considerations

Consider age-related factors in diagnosis and treatment, as children may present differently.

Coding Guidelines

Inclusion Criteria

Use H70.891 When
  • Follow official ICD
  • CM guidelines for coding mastoiditis, ensuring to document the specific type and any related conditions
  • Include details on the patient's clinical presentation and treatment plan

Exclusion Criteria

Do NOT use H70.891 When
No specific exclusions found.

Related ICD-10 Codes

Related CPT Codes

69631CPT Code

Mastoidectomy, simple

Clinical Scenario

Used when surgical intervention is required for mastoiditis.

Documentation Requirements

Operative reports detailing the procedure and indications.

Specialty Considerations

Otolaryngologists must ensure all surgical details are documented for accurate coding.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 has allowed for more specific coding of mastoiditis, improving the ability to capture the complexity of ear diseases and their management.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of mastoiditis, improving the ability to capture the complexity of ear diseases and their management.

Reimbursement & Billing Impact

The transition to ICD-10 has allowed for more specific coding of mastoiditis, improving the ability to capture the complexity of ear diseases and their management.

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 mastoiditis?

Common symptoms include ear pain, fever, drainage from the ear, and hearing loss. Patients may also exhibit systemic symptoms such as malaise.