A335 – Consultation
OHIP General Listings Code — Diagnostic Radiology (33) · Schedule of Benefits
A diagnostic radiology consultation is a specialist assessment rendered by a radiologist in specific clinical scenarios, including providing a written opinion on images from another facility, consulting on the advisability of a procedure that is not performed, or providing an opinion prior to complex interventional procedures.
When to Use
- Bill A335 when providing a written opinion on plain films or ultrasounds from another facility, as distinct from CT (A330) or MRI (A332) studies.
- Use A335 for a radiologist's consultation on the advisability of a non-performed diagnostic radiological procedure during off-hours (evenings, nights, weekends, holidays).
- A335 is appropriate when a radiologist provides an opinion prior to specific interventional procedures (e.g., J021, N107) when performed remotely from the procedural suite and not solely for consent.
Common Pitfalls
- Do not bill A335 for CT or MRI second opinions; use A330 and A332 respectively.
- Avoid billing A335 if the comparison images are from the consultant's own institution; this scenario is not eligible.
- Ensure the consultation is not solely for obtaining consent or clarifying information for interventional procedures, as this would not meet A335 requirements.
Billing Tips
- Always obtain a written request from a physician, NP, or dental surgeon to support A335 billing.
- Submit a comprehensive written report detailing findings, opinions, and recommendations to the referring practitioner to justify the A335 consultation.
Effective: June 1, 2025
Consultations and Visits
Diagnostic Radiology (33)
Consultations and Visits
Consultation
A written request from a referring physician, nurse practitioner, or dental surgeon.
A written report (including findings, opinions, and recommendations) to the referring physician, nurse practitioner or dental surgeon.
Scenario A: Radiographs or ultrasounds made at one institution or facility are referred to a radiologist at a different institution or facility for his/her written opinion.
Scenario B: A radiologist is required to make a special visit at evening or night (17:00h to 07:00h) or on a Saturday, Sunday or holiday to consult on the advisability of performing a diagnostic radiological procedure which eventually is not done.
Scenario C: A radiologist is required to render an opinion prior to an interventional procedure and all of the following requirements are met: (i) the consultation is performed in an area remote from the radiologist’s normal procedural suite; (ii) the requirements for a consultation are met; (iii) the consultation is not solely for the purpose of clarifying or obtaining consent; and (iv) the associated procedure is one of the following: J021, J025, J040, J041, J046, J048, J049, J050, J055, J056, J057, J058, J059, J063, J065, J066, N107, N118, N122, N125, S233, Z446, Z456, Z562, Z594.
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