ICD-10 Logo
ICDxICD-10 Medical Coding
ICD-10 Logo
ICDxICD-10 Medical Coding
ICD 10 CodesDiagnoses
ICD 10 CodesDiagnoses
ICD-10 Logo
ICDxICD-10 Medical Coding

Comprehensive ICD-10-CM code reference with AI-powered search capabilities.

© 2025 ICD Code Compass. All rights reserved.

Browse

  • All Chapters
  • All Categories
  • Diagnoses

Tools

  • AI Code Search
ICD-10-CM codes are maintained by the CDC and CMS. This tool is for reference purposes only.
v1.0.0
ICD-10 Guide
ICD-10 CodesG44.049

G44.049

Billable

Chronic paroxysmal hemicrania, not intractable

BILLABLE STATUSYes
IMPLEMENTATION DATEOctober 1, 2015
LAST UPDATED09/05/2025

Code Description

ICD-10 G44.049 is a billable code used to indicate a diagnosis of chronic paroxysmal hemicrania, not intractable.

Key Diagnostic Point:

Chronic paroxysmal hemicrania (CPH) is a rare primary headache disorder characterized by recurrent, unilateral headaches that occur in clusters. These headaches are typically short-lived, lasting from 2 to 30 minutes, but can occur multiple times a day. Unlike other headache disorders, CPH is distinguished by its response to indomethacin, a nonsteroidal anti-inflammatory drug. The term 'not intractable' indicates that the condition is manageable and does not lead to persistent, unmanageable symptoms. Patients often experience significant disability during headache episodes, which can be triggered by various factors, including stress, certain foods, and changes in sleep patterns. Understanding the triggers and implementing preventive treatments are crucial for managing CPH effectively. Preventive treatments may include lifestyle modifications, pharmacological interventions, and addressing any underlying conditions that may exacerbate the headaches.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Differentiation from other headache disorders such as migraines and cluster headaches.
  • Need for precise documentation of headache frequency and duration.
  • Response to specific medications like indomethacin must be documented.
  • Potential overlap with other ICD-10 codes related to headache disorders.

Audit Risk Factors

  • Inadequate documentation of headache characteristics.
  • Failure to document the response to indomethacin.
  • Misclassification of headache type.
  • Lack of detailed patient history regarding triggers.

Specialty Focus

Medical Specialties

Neurology

Documentation Requirements

Detailed headache diaries, medication response records, and trigger identification.

Common Clinical Scenarios

Patients presenting with recurrent unilateral headaches, especially those unresponsive to typical migraine treatments.

Billing Considerations

Neurologists should ensure thorough documentation of headache patterns and treatment responses to support the diagnosis.

Pain Management

Documentation Requirements

Comprehensive pain assessments and treatment plans that include pharmacological and non-pharmacological interventions.

Common Clinical Scenarios

Patients seeking relief from chronic headache pain, particularly those with a history of medication overuse.

Billing Considerations

Pain management specialists should document the impact of headaches on daily functioning and quality of life.

Coding Guidelines

Inclusion Criteria

Use G44.049 When
  • According to ICD
  • 10 guidelines, G44
  • 049 should be used when the patient has chronic paroxysmal hemicrania that is not classified as intractable
  • Documentation must clearly indicate the frequency, duration, and response to treatment

Exclusion Criteria

Do NOT use G44.049 When
No specific exclusions found.

Related ICD-10 Codes

Related CPT Codes

99213CPT Code

Established patient office visit, Level 3

Clinical Scenario

Used for follow-up visits for patients with chronic paroxysmal hemicrania.

Documentation Requirements

Document history of present illness, review of systems, and treatment response.

Specialty Considerations

Neurologists should ensure comprehensive documentation to support the level of service billed.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 has allowed for more specific coding of headache disorders, including chronic paroxysmal hemicrania, which enhances the ability to track and manage these conditions effectively.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of headache disorders, including chronic paroxysmal hemicrania, which enhances the ability to track and manage these conditions effectively.

Reimbursement & Billing Impact

reimbursement and to avoid audits.

Resources

Clinical References

  • •
    American Headache Society

Coding & Billing References

  • •
    American Headache Society

Frequently Asked Questions

What is the primary treatment for chronic paroxysmal hemicrania?

The primary treatment for chronic paroxysmal hemicrania is indomethacin, which is effective in alleviating headache episodes. Preventive treatments may also be considered based on individual patient needs.