What is OHIP billing code C721?

C721 is "Complex medical specific re-assessment", an OHIP Consultations and Visits code from the Ontario Schedule of Benefits (Physician Services).

How much does C721 pay?

The current OHIP fee for C721 is $83.40, effective 2026-04-01, per the Ontario Schedule of Benefits.

How do I bill C721 to OHIP?

C721 is submitted through OHIP's MCEDT claims system, either directly or via billing software. SnapBill validates C721 claims against the Schedule of Benefits rules before submission.

What codes are related to C721?

Codes related to C721 in the Schedule of Benefits include A721, C723, C724, C720, C725, C722.

All codes

C721

C721 – Complex medical specific re-assessment

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

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Levels of this visit

The C72x codes in this part of the Schedule of Benefits, lowest fee first. Bill the level the history and examination support.

Assessments

C724 Medical specific re-assessment
Medical specific re-assessment (Occupational Medicine)
$72.00
C721 Complex medical specific re-assessment(this code)
A re-assessment of a patient because of the complexity, obscurity, or seriousness of the patient’s condition.
$83.40
C723 Medical specific assessment
A medical specific assessment is a service rendered by a specialist in Occupational Medicine to a hospital in-patient.
$95.95

Consultations

C726 Repeat consultation
A repeat consultation is an additional consultation rendered by the same consultant, in respect of the same presenting problem, following care rendered to the patient by another…
$123.10
C725 Consultation
A consultation rendered to a hospital in-patient by a specialist in occupational medicine following a written request from a referring physician, nurse practitioner, or dental…
$192.85
C720 Comprehensive occupational medicine consultation
A consultation rendered by a specialist in occupational medicine who provides all the appropriate elements of a consultation and spends a minimum of 75 minutes in direct contact…
$342.25

A re-assessment of a patient because of the complexity, obscurity, or seriousness of the patient’s condition. This service is rendered by a specialist in Occupational Medicine for a hospital in-patient and requires a full, relevant history and physical examination of one or more systems.

Requires a full, relevant history and physical examination of one or more systems.

The physician must report findings, opinions, or recommendations in writing to the patient’s primary care physician.

If the written report requirement is not met, the amount payable will be adjusted to a lesser assessment fee.

Usage limits

Limited to 4 per patient per physician per 12 month period. This limit is shared with C723 (Medical specific assessment).

A721Complex medical specific re-assessment (Outpatient)C723Medical specific assessment C724Medical specific re-assessment C720Comprehensive occupational medicine consultation C725Consultation C722Subsequent visit (first 5 weeks)

If the usage limit of 4 per 12 months is exceeded, the fee will be adjusted to a lesser assessment fee.

C721 is the in-patient equivalent of A721.

Admission assessments constitute a re-assessment (like C721) if the admitting physician has previously assessed the patient for the same illness within 90 days.

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