What is OHIP billing code C643?

C643 is "Specific assessment", an OHIP Consultations and Visits code from the Ontario Schedule of Benefits (Physician Services).

How much does C643 pay?

The current OHIP fee for C643 is $45.10, effective 2026-04-01, per the Ontario Schedule of Benefits.

How do I bill C643 to OHIP?

C643 is submitted through OHIP's MCEDT claims system, either directly or via billing software. SnapBill validates C643 claims against the Schedule of Benefits rules before submission.

What codes are related to C643?

Codes related to C643 in the Schedule of Benefits include C121, C122, C123, C124, C142, C143, C882, C982.

All codes

C643

C643 – Specific assessment

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

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Levels of this visit

The C64x codes in this part of the Schedule of Benefits, lowest fee first. Bill the level the history and examination support.

Assessments

C644 Specific re-assessment
A specific re-assessment rendered by a specialist in General Thoracic Surgery to a non-emergency hospital in-patient.
$26.40
C643 Specific assessment(this code)
A specific assessment rendered by a specialist in General Thoracic Surgery to a non-emergency hospital in-patient.
$45.10

Consultations

C646 Repeat consultation
Repeat consultation listed under General Thoracic Surgery (64), Non-Emergency Hospital In-Patient Services (see General Preamble GP40 to GP48).
$60.95
C645 Consultation
C645 is the consultation listed under Non-Emergency Hospital In-Patient Services in the General Thoracic Surgery (64) section of Consultations and Visits.
$100.15

A specific assessment rendered by a specialist in General Thoracic Surgery to a non-emergency hospital in-patient. The 'C' prefix designates this service for non-emergency hospital in-patients.

Usage limits

OR([1, "week", "per_patient", "Subsequent visits are limited to one per patient, per day for the first 5 weeks after admission"], [3, "week", "per_patient", "3 visits per week from 6 to 13 weeks after admission"], [6, "month", "per_patient", "6 visits per month after 13 weeks"])

C121 C122 C123 C124 C142 C143 C882 C982 C642 C647 C649 C126 C648

When a hospital in-patient is referred from one physician to another physician, the date the second physician assessed the patient for the first time is considered the “admission date” for the purposes of determining the appropriate subsequent visit fee code.

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