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v1.0.0
ICD-10 Guide
ICD-10 CodesH70.001

H70.001

Billable

Acute mastoiditis without complications, right ear

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

Code Description

ICD-10 H70.001 is a billable code used to indicate a diagnosis of acute mastoiditis without complications, right ear.

Key Diagnostic Point:

Acute mastoiditis is an infection of the mastoid process, typically resulting from an untreated or inadequately treated acute otitis media. The condition is characterized by inflammation and infection of the mastoid air cells, which can lead to significant morbidity if not addressed promptly. Patients often present with symptoms such as ear pain, fever, and swelling behind the ear. In acute mastoiditis without complications, there are no abscesses or other severe manifestations, making it crucial to differentiate from more severe forms of mastoiditis. Diagnosis is primarily clinical, supported by imaging studies like CT scans when necessary. Management typically involves antibiotics, and in some cases, surgical intervention may be required to drain infected material. The right ear designation is essential for accurate coding and treatment planning, as it informs the healthcare team of the affected site.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Differentiation from chronic mastoiditis
  • Need for precise documentation of ear involvement
  • Potential for surgical intervention coding
  • Variability in clinical presentation

Audit Risk Factors

  • Inadequate documentation of symptoms
  • Failure to specify the affected ear
  • Misclassification as chronic mastoiditis
  • Lack of imaging documentation when indicated

Specialty Focus

Medical Specialties

Otolaryngology

Documentation Requirements

Detailed clinical notes on symptoms, examination findings, and treatment plans.

Common Clinical Scenarios

Patients presenting with ear pain, fever, and swelling behind the ear.

Billing Considerations

Ensure clear documentation of the acute nature of the condition and any surgical interventions performed.

Pediatrics

Documentation Requirements

Thorough history and physical examination, including family history of ear infections.

Common Clinical Scenarios

Children with recurrent otitis media leading to mastoiditis.

Billing Considerations

Consider age-related factors in treatment and documentation.

Coding Guidelines

Inclusion Criteria

Use H70.001 When
  • Follow official ICD
  • CM coding guidelines, ensuring accurate documentation of the acute nature of the condition and the specific ear involved
  • Include any relevant imaging or lab results to support the diagnosis

Exclusion Criteria

Do NOT use H70.001 When
No specific exclusions found.

Related ICD-10 Codes

Related CPT Codes

69436CPT Code

Tympanostomy, bilateral

Clinical Scenario

Often performed in conjunction with treatment for acute mastoiditis in children.

Documentation Requirements

Document indication for tympanostomy and any findings during the procedure.

Specialty Considerations

Otolaryngologists should ensure clear documentation of the need for surgical intervention.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 has allowed for more specific coding of conditions like acute mastoiditis, improving the accuracy of patient records and treatment plans.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of conditions like acute mastoiditis, improving the accuracy of patient records and treatment plans.

Reimbursement & Billing Impact

The transition to ICD-10 has allowed for more specific coding of conditions like acute mastoiditis, improving the accuracy of patient records and treatment plans.

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 acute mastoiditis?

Common symptoms include ear pain, fever, swelling behind the ear, and sometimes drainage from the ear.

How is acute mastoiditis diagnosed?

Diagnosis is primarily clinical, supported by imaging studies like CT scans to assess the extent of the infection.

What is the typical treatment for acute mastoiditis?

Treatment usually involves antibiotics, and in some cases, surgical intervention may be necessary to drain infected material.