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v1.0.0
ICD-10 Guide
ICD-10 CodesH70.89

H70.89

Billable

Other mastoiditis and related conditions

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

Code Description

ICD-10 H70.89 is a billable code used to indicate a diagnosis of other mastoiditis and related conditions.

Key Diagnostic Point:

H70.89 refers to other forms of mastoiditis that do not fall under the more common classifications. Mastoiditis is an infection of the mastoid process, which is the bony prominence located behind the ear. It often arises as a complication of acute otitis media, where the infection spreads from the middle ear to the mastoid air cells. Clinical presentation may include ear pain, fever, swelling behind the ear, and hearing loss. Patients may also experience drainage from the ear if there is a perforation in the tympanic membrane. Diagnosis typically involves a thorough clinical examination, imaging studies such as CT scans, and sometimes cultures of ear discharge. Management may include antibiotics, and in severe cases, surgical intervention such as mastoidectomy may be necessary to remove infected tissue. Accurate coding is essential for proper reimbursement and to reflect the complexity of the patient's condition.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Variety of underlying causes leading to mastoiditis
  • Differentiation from other ear-related conditions
  • Potential for surgical intervention
  • Need for detailed clinical documentation

Audit Risk Factors

  • Inadequate documentation of clinical findings
  • Misclassification of the type of mastoiditis
  • Failure to document associated conditions
  • Lack of imaging or lab results to support diagnosis

Specialty Focus

Medical Specialties

Otolaryngology

Documentation Requirements

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

Common Clinical Scenarios

Patients presenting with recurrent ear infections, complications from otitis media, or post-surgical follow-ups.

Billing Considerations

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

Pediatrics

Documentation Requirements

Thorough history of ear infections, developmental milestones, and family history.

Common Clinical Scenarios

Children with recurrent otitis media leading to mastoiditis.

Billing Considerations

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

Coding Guidelines

Inclusion Criteria

Use H70.89 When
  • Follow official ICD
  • CM guidelines for coding mastoiditis, ensuring to document the specific type of mastoiditis and any related conditions
  • Include any relevant imaging or lab results to support the diagnosis

Exclusion Criteria

Do NOT use H70.89 When
No specific exclusions found.

Related ICD-10 Codes

Related CPT Codes

69436CPT Code

Mastoidectomy

Clinical Scenario

Performed in cases of severe mastoiditis requiring surgical intervention.

Documentation Requirements

Operative report detailing the procedure and indication for surgery.

Specialty Considerations

Otolaryngologists must ensure clear documentation of the surgical necessity.

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 the condition and its 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 the condition and its 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 the condition and its 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 difference between H70.89 and H70.0?

H70.89 is used for other forms of mastoiditis not classified elsewhere, while H70.0 specifically refers to acute mastoiditis, which is a more defined condition.