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v1.0.0
ICD-10 Guide
ICD-10 CodesG44.059

G44.059

Billable

Short lasting unilateral neuralgiform headache with conjunctival injection and tearing (SUNCT), not intractable

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

Code Description

ICD-10 G44.059 is a billable code used to indicate a diagnosis of short lasting unilateral neuralgiform headache with conjunctival injection and tearing (sunct), not intractable.

Key Diagnostic Point:

Short lasting unilateral neuralgiform headache with conjunctival injection and tearing (SUNCT) is a rare primary headache disorder characterized by recurrent, brief episodes of unilateral headache that are often accompanied by autonomic symptoms such as conjunctival injection and tearing. The headaches typically last from a few seconds to several minutes and can occur multiple times a day. Unlike cluster headaches, SUNCT headaches are not associated with a specific time of day and can occur at any time. The pain is often described as sharp or stabbing and is localized to one side of the head. The condition is considered not intractable when the episodes are manageable and do not significantly impair the patient's quality of life. Triggers may include stress, certain foods, or changes in sleep patterns. Preventive treatments may involve medications such as lamotrigine or topiramate, which have shown efficacy in reducing the frequency of attacks. Accurate diagnosis and coding are essential for appropriate management and treatment planning.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Rarity of the condition leading to potential misdiagnosis
  • Overlap with other headache disorders such as migraines and cluster headaches
  • Need for detailed patient history to identify triggers
  • Variability in symptom presentation among patients

Audit Risk Factors

  • Inadequate documentation of headache characteristics
  • Failure to document the frequency and duration of episodes
  • Misclassification of SUNCT as a migraine or cluster headache
  • Lack of evidence for prescribed preventive treatments

Specialty Focus

Medical Specialties

Neurology

Documentation Requirements

Detailed headache diaries, descriptions of headache characteristics, and response to treatments.

Common Clinical Scenarios

Patients presenting with recurrent unilateral headaches with autonomic symptoms.

Billing Considerations

Neurologists should ensure comprehensive documentation of the patient's headache history and any associated symptoms to support the diagnosis.

Pain Management

Documentation Requirements

Assessment of pain intensity, frequency, and impact on daily activities.

Common Clinical Scenarios

Patients seeking management for chronic headache disorders with a focus on pain relief strategies.

Billing Considerations

Pain management specialists should document the effectiveness of interventions and any changes in headache patterns.

Coding Guidelines

Inclusion Criteria

Use G44.059 When
  • According to ICD
  • 10 guidelines, G44
  • 059 should be used when the patient presents with specific symptoms of SUNCT that are not intractable
  • Documentation must clearly indicate the presence of conjunctival injection and tearing, as well as the frequency and duration of headache episodes

Exclusion Criteria

Do NOT use G44.059 When
No specific exclusions found.

Related ICD-10 Codes

Related CPT Codes

99213CPT Code

Office or other outpatient visit for the evaluation and management of an established patient

Clinical Scenario

Used when a patient with SUNCT presents for follow-up and management of their condition.

Documentation Requirements

Documentation must include a review of symptoms, treatment response, and any changes in headache patterns.

Specialty Considerations

Neurologists should ensure that the visit notes reflect the complexity of managing SUNCT.

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 SUNCT, which aids in better tracking and management of these conditions. This specificity helps in research and treatment outcomes.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of headache disorders, including SUNCT, which aids in better tracking and management of these conditions. This specificity helps in research and treatment outcomes.

Reimbursement & Billing Impact

reimbursement.

Resources

Clinical References

  • •
    International Classification of Headache Disorders

Coding & Billing References

  • •
    International Classification of Headache Disorders

Frequently Asked Questions

What are the common triggers for SUNCT?

Common triggers for SUNCT may include stress, certain foods, alcohol consumption, and changes in sleep patterns. Identifying triggers can help in managing the condition.