What is OHIP billing code A645?

A645 is "Consultation", an OHIP Consultations and Visits code from the Ontario Schedule of Benefits (Physician Services).

How much does A645 pay?

The current OHIP fee for A645 is $100.15, effective 2026-04-01, per the Ontario Schedule of Benefits.

How do I bill A645 to OHIP?

A645 is submitted through OHIP's MCEDT claims system, either directly or via billing software. SnapBill validates A645 claims against the Schedule of Benefits rules before submission.

What codes are related to A645?

Codes related to A645 in the Schedule of Benefits include A935, A646, A643, A644, C645, W645, C935, C646.

All codes

A645

A645 – Consultation

OHIP Consultations and Visits Code — CONSULTATIONS AND VISITS · Schedule of Benefits

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Levels of this visit

The A64x codes in this part of the Schedule of Benefits, lowest fee first. Bill the level the history and examination support.

Assessments

A644 Partial assessment
A partial assessment is the limited service that constitutes a history of the presenting complaint, the necessary physical examination, advice to the patient and appropriate…
$24.50
A643 Specific assessment
A specific assessment requires a full history of the presenting complaint and detailed examination of the affected part(s), region(s), or system(s) needed to make a diagnosis…
$45.10

Consultations

A646 Repeat consultation
Repeat consultation, General Thoracic Surgery (64) general listing.
$60.95
A645 Consultation(this code)
A consultation is an assessment rendered following a written request from a referring physician, nurse practitioner, or dental surgeon (for hospital-based dental procedures).
$100.15

A consultation is an assessment rendered following a written request from a referring physician, nurse practitioner, or dental surgeon (for hospital-based dental procedures). The consultant physician, competent in General Thoracic Surgery, provides an opinion on a case due to its complexity, seriousness, or obscurity. The service includes the necessary elements to prepare a written report (findings, opinions, and recommendations) back to the referrer.

Written request identifying the consultant, referrer, and patient, and specifying the reason for referral.

Written report including findings, opinions, and recommendations sent to the referrer.

The consultant must perform a general, specific, or medical specific assessment as part of the consultation.

A copy of the written request for the consultation, signed by the referring physician, nurse practitioner or dental surgeon must be kept in the consulting physician’s medical record, except in the case of a consultation which occurs in a hospital, long-term care institution or multi-specialty clinic where common medical records are maintained. In such cases, the written request may be contained on the common medical record.

Usage limits

Limited to one service per patient per physician per two consecutive 12-month periods for the same diagnosis, unless the second service is rendered to a hospital inpatient or in an Emergency Department and occurs 12-24 months after the first.

A935 A646 A643 A644 C645 W645 C935 C646 C643 C644 W646

If the consultation is requested by a Medical Trainee, the fee is adjusted to a lesser assessment fee.

Consultations for low-risk elective procedures (e.g., cataract surgery, colonoscopy) are only eligible if medically necessary and documented as such.

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