G019 – LH (luteinizing hormone)
OHIP Diagnostic & Therapeutic Procedures Code — DIAGNOSTIC AND THERAPEUTIC PROCEDURES · Schedule of Benefits
A laboratory service ('test') to measure Luteinizing Hormone (LH). This service is eligible for payment only when rendered by a physician (or a substituting physician) in their own office for their own patient. As a reproductive medicine test, it is only payable to physicians for whom point of care testing is necessary for their practice. This service is not insured when rendered to support in-vitro fertilization or artificial insemination services.
When to Use
- Use G019 for point-of-care LH testing when monitoring ovulation induction cycles for non-IVF/non-IUI indications, such as managing PCOS-related anovulation.
- Use this code when immediate LH results are required to adjust medication dosages during a natural or stimulated cycle that does not involve assisted reproductive technologies.
Common Pitfalls
- Billing G019 for patients undergoing IVF or artificial insemination will result in automatic rejection or clawbacks, as these are explicitly excluded from coverage.
- Submitting G019 for tests performed by an external laboratory is a billing error, as this code is strictly reserved for point-of-care testing performed within the physician's own office.
Billing Tips
- Ensure the clinical indication for the LH test is clearly distinct from fertility treatment protocols to avoid audit flags related to the IVF/IUI exclusion.
Effective: April 1, 2026
J. Diagnostic and Therapeutic Procedures
DIAGNOSTIC AND THERAPEUTIC PROCEDURES
Laboratory
Diagnostic and Therapeutic Procedures
The result of the test(s), the physician's interpretation of the results of the test(s) and the treatment decision based on the test results must be documented in the patient's permanent medical record.
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