What is OHIP billing code C661?

C661 is "Complex medical specific re-assessment", an OHIP Consultations and Visits code from the Ontario Schedule of Benefits (Physician Services).

How much does C661 pay?

The current OHIP fee for C661 is $86.35, effective 2026-04-01, per the Ontario Schedule of Benefits.

How do I bill C661 to OHIP?

C661 is submitted through OHIP's MCEDT claims system, either directly or via billing software. SnapBill validates C661 claims against the Schedule of Benefits rules before submission.

What codes are related to C661?

Codes related to C661 in the Schedule of Benefits include C263, C264.

All codes

C661

C661 – 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 C66x codes in this part of the Schedule of Benefits, lowest fee first. Bill the level the history and examination support.

Assessments

C661 Complex medical specific re-assessment(this code)
A complex medical specific re-assessment is a re-assessment of a patient because of the complexity, obscurity, or seriousness of the patient's condition and includes all the…
$86.35

Consultations

C665 Prenatal consultation
A prenatal consultation is an assessment provided by a paediatrician (specialty 26) to a hospital in-patient following a written request from a referring physician, nurse…
$105.50
C662 Extended special paediatric consultation
An extended special paediatric consultation rendered for a non-emergency hospital in-patient.
$442.40
C667 Neurodevelopmental consultation
A neurodevelopmental consultation rendered to a non-emergency in-patient in an acute care hospital.
$456.80

A complex medical specific re-assessment is a re-assessment of a patient because of the complexity, obscurity, or seriousness of the patient's condition and includes all the requirements of a medical specific re-assessment. The physician must report his/her findings, opinions, or recommendations in writing to the patient's primary care physician or the amount payable for the service will be adjusted to a lesser assessment fee. As a 'C' prefix code, this service is for non-emergency hospital in-patients. This code is listed under the Paediatrics (<specialtyCode>26</specialtyCode>) specialty section. Refer to and for general rules on assessments and in-patient services.

The physician must report his/her findings, opinions, or recommendations in writing to the patient's primary care physician or the amount payable for the service will be adjusted to a lesser assessment fee.

The medical record must contain a record of the service that establishes that the service was provided, is the service for which the account is submitted, and was medically necessary.

C263 C264

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