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ICD-10 Guide
ICD-10 CodesH70.019

H70.019

Billable

Subperiosteal abscess of mastoid, unspecified ear

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

Code Description

ICD-10 H70.019 is a billable code used to indicate a diagnosis of subperiosteal abscess of mastoid, unspecified ear.

Key Diagnostic Point:

A subperiosteal abscess of the mastoid process is a localized collection of pus that forms beneath the periosteum of the mastoid bone, typically as a complication of acute otitis media or chronic ear infections. This condition is characterized by inflammation and infection that can lead to significant morbidity if not treated promptly. Patients may present with symptoms such as ear pain, fever, swelling behind the ear, and possible drainage from the ear canal. The abscess can cause erosion of the mastoid bone and may lead to more severe complications, including meningitis or brain abscess. Diagnosis is primarily clinical, supported by imaging studies such as CT or MRI to assess the extent of the infection and rule out other conditions. Management typically involves antibiotics and may require surgical intervention, such as mastoidectomy or drainage of the abscess, depending on the severity and response to medical treatment. Early recognition and appropriate management are crucial to prevent complications.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Differentiating between subperiosteal abscess and other types of mastoiditis.
  • Need for precise documentation of clinical findings and imaging results.
  • Potential for multiple coding options based on the severity and treatment.
  • Variability in presentation and management based on patient age and comorbidities.

Audit Risk Factors

  • Inadequate documentation of clinical findings.
  • Failure to document imaging studies that support the diagnosis.
  • Misclassification of the type of mastoiditis or abscess.
  • Lack of clarity on the treatment plan and follow-up care.

Specialty Focus

Medical Specialties

Otolaryngology

Documentation Requirements

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

Common Clinical Scenarios

Patients presenting with ear pain, fever, and swelling behind the ear, often following a recent upper respiratory infection.

Billing Considerations

Ensure that all surgical interventions are documented, including indications for surgery and post-operative care.

Pediatrics

Documentation Requirements

Thorough history taking, including previous ear infections and family history of otitis media.

Common Clinical Scenarios

Children with recurrent ear infections presenting with acute symptoms suggestive of mastoiditis.

Billing Considerations

Consider age-related factors in treatment and documentation, as children may present differently than adults.

Coding Guidelines

Inclusion Criteria

Use H70.019 When
  • Follow official ICD
  • CM coding guidelines, ensuring accurate documentation of the diagnosis, treatment, and any complications
  • Include relevant imaging studies and clinical findings to support the diagnosis of subperiosteal abscess

Exclusion Criteria

Do NOT use H70.019 When
No specific exclusions found.

Related ICD-10 Codes

Related CPT Codes

69420CPT Code

Mastoidectomy

Clinical Scenario

Used when surgical intervention is required for drainage of the abscess.

Documentation Requirements

Document indications for surgery, findings during the procedure, and post-operative care.

Specialty Considerations

Otolaryngologists should ensure that all surgical details are accurately captured.

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 subperiosteal abscess, 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 conditions like subperiosteal abscess, improving the accuracy of diagnoses and treatment tracking. This specificity aids in better patient management and resource allocation.

Reimbursement & Billing Impact

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

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 a subperiosteal abscess of the mastoid?

Common symptoms include ear pain, fever, swelling behind the ear, and possible drainage from the ear canal. Patients may also experience hearing loss or changes in balance.