G394 – Collection of additional cervical cancer screening specimen(s)
OHIP Diagnostic & Therapeutic Procedures Code — DIAGNOSTIC AND THERAPEUTIC PROCEDURES · Schedule of Benefits
Collection of additional cervical cancer screening specimen(s) for any of the following purposes: - Follow-up test once after low grade cytology results, where the follow-up specimen(s) are collected between March 3, 2025 and September 30, 2026; or - Once every 3 years for patients who are immunocompromised; or - Follow-up test once, a minimum of 24 months after testing human papillomavirus (HPV)-positive for other high risk subtype as defined by Ontario cervical cancer screening guidelines with normal/low grade cytology results; or - Follow-up test once, a minimum of 24 months after discharge from colposcopy when increased screening is recommended by Ontario cervical cancer screening guidelines; or - Repeat after an invalid HPV test or an unsatisfactory cytology test; or - Post-hysterectomy vaginal vault testing for patients with histologic evidence of dysplasia in the cervix at the time of hysterectomy; or - Where the physician is of the opinion that the patient is a member of a vulnerable group that may have difficulty accessing the services within the specified time period.
When to Use
- Use G394 when performing a repeat cervical specimen collection due to an unsatisfactory or invalid lab result from a previous screening attempt.
- Use G394 for immunocompromised patients requiring cervical screening on a 3-year interval, which deviates from standard population screening frequency.
- Use G394 for post-hysterectomy vaginal vault testing specifically in patients who had documented histologic evidence of cervical dysplasia at the time of their hysterectomy.
Common Pitfalls
- Do not bill G394 alongside a consultation, assessment, or reassessment, as the pelvic exam is considered part of those services; use E431 instead if the collection occurs outside a hospital or ICHSC.
- G394 is not payable if you have already claimed the monthly management fee (W010) for a nursing home patient in the same calendar month.
- Avoid billing G394 with an insured colposcopy service; the collection fee is bundled, though the E431 premium remains eligible in non-hospital settings.
Billing Tips
- Always append E431 to your claim when performing G394 in a community office setting to capture the $11.95 premium, as this is payable even when G394 itself is restricted by a concurrent assessment.
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