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v1.0.0
ICD-10 Guide
ICD-10 CodesG44.84

G44.84

Billable

Primary exertional headache

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

Code Description

ICD-10 G44.84 is a billable code used to indicate a diagnosis of primary exertional headache.

Key Diagnostic Point:

Primary exertional headache is a type of headache that occurs during or after physical exertion. It is characterized by a throbbing or pulsating pain that can be unilateral or bilateral and typically lasts from a few minutes to several days. This condition is often triggered by activities such as running, lifting heavy objects, or sexual activity. The pathophysiology of primary exertional headache is not fully understood, but it is believed to involve vascular changes in the brain and increased intracranial pressure during exertion. Unlike secondary headaches, which are caused by underlying medical conditions, primary exertional headaches are idiopathic and do not have a clear etiology. Patients may experience associated symptoms such as nausea, vomiting, and sensitivity to light or sound. Diagnosis is primarily clinical, based on the patient's history and symptomatology, and it is important to rule out secondary causes of headache through appropriate imaging and laboratory tests. Treatment often includes lifestyle modifications, hydration, and preventive medications for those with recurrent episodes.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Differentiating between primary and secondary headaches
  • Identifying specific triggers for exertional headaches
  • Documenting the frequency and severity of headaches
  • Understanding the patient's physical activity level

Audit Risk Factors

  • Inadequate documentation of headache triggers
  • Failure to rule out secondary headache causes
  • Misclassification of headache type
  • Lack of detailed patient history

Specialty Focus

Medical Specialties

Neurology

Documentation Requirements

Detailed patient history, including headache frequency, duration, and triggers; neurological examination findings.

Common Clinical Scenarios

Patients presenting with recurrent headaches triggered by exercise or physical activity.

Billing Considerations

Ensure to document any neurological deficits or associated symptoms to rule out secondary causes.

Sports Medicine

Documentation Requirements

Assessment of physical activity levels, detailed history of headache onset during exertion.

Common Clinical Scenarios

Athletes experiencing headaches during training or competition.

Billing Considerations

Consideration of hydration status and physical conditioning in relation to headache occurrence.

Coding Guidelines

Inclusion Criteria

Use G44.84 When
  • Follow the official ICD
  • CM coding guidelines, ensuring accurate documentation of the patient's history and symptomatology

Exclusion Criteria

Do NOT use G44.84 When
  • Exclude secondary headache disorders through appropriate diagnostic testing

Related ICD-10 Codes

Related CPT Codes

99213CPT Code

Established patient office visit, Level 3

Clinical Scenario

Used for follow-up visits for headache management.

Documentation Requirements

Document the patient's headache history, triggers, and response to treatment.

Specialty Considerations

Neurologists may require more detailed neurological assessments.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 has allowed for more specific coding of headache types, improving the accuracy of diagnosis and treatment tracking for primary exertional headaches.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of headache types, improving the accuracy of diagnosis and treatment tracking for primary exertional headaches.

Reimbursement & Billing Impact

The transition to ICD-10 has allowed for more specific coding of headache types, improving the accuracy of diagnosis and treatment tracking for primary exertional headaches.

Resources

Clinical References

  • •
    American Headache Society

Coding & Billing References

  • •
    American Headache Society

Frequently Asked Questions

What are the common triggers for primary exertional headaches?

Common triggers include physical activities such as running, weightlifting, and sexual activity. Dehydration and lack of proper warm-up may also contribute.

How can primary exertional headaches be prevented?

Preventive measures include staying hydrated, gradually increasing physical activity intensity, and considering preventive medications if headaches are recurrent.