X171 – Lymphangiogram
OHIP Laboratory Code — DIAGNOSTIC RADIOLOGY · Schedule of Benefits
A lymphangiogram is listed under Miscellaneous Examinations within the Diagnostic Radiology section of the Schedule of Benefits. It has a technical component (H fee) and a professional component (P fee).
When to Use
- Use X171 when performing a formal lymphangiogram to visualize the lymphatic system, distinguishing it from general contrast studies or standard X-ray imaging.
- Select X171 for diagnostic imaging procedures where the specific clinical objective is the mapping of lymphatic vessels or nodes, as opposed to more common vascular studies like X151 or X163.
Common Pitfalls
- Billing the technical component (H fee) for an inpatient is prohibited if the patient is admitted to the same facility within 24 hours of the service for the same condition.
- Failure to include the required referral from a physician, nurse practitioner, midwife, or oral maxillofacial surgeon will result in an automatic rejection.
- Attempting to bill X171 in combination with other special visit premiums for the same patient encounter will lead to claim denial, as only one special visit premium is payable per visit.
Billing Tips
- Ensure the professional component (P fee) is clearly separated from the technical component (H fee) in your billing software to comply with the Schedule of Benefits structure for diagnostic radiology.
- Apply the appropriate age-based premium (e.g., AGE_PREMIUM_UNDER_16Y) to the procedural fee if the patient meets the specific age criteria, as this is a clinical procedure associated with a diagnostic radiological examination.
Effective: April 1, 2025
D. Diagnostic Radiology
DIAGNOSTIC RADIOLOGY
Diagnostic
Diagnostic Radiology
All insured services must be documented in appropriate records. The Act requires that the record establish that: 1. an insured service was provided; 2. the service for which the account is submitted is the service that was rendered; and 3. the service was medically necessary.
Ready to bill this code?
SnapBill makes OHIP billing simple — auto-filled codes, validation, and batch submission.