What is OHIP billing code C644?

C644 is "Specific re-assessment", an OHIP Consultations and Visits code from the Ontario Schedule of Benefits (Physician Services).

How much does C644 pay?

The current OHIP fee for C644 is $26.40, effective 2026-04-01, per the Ontario Schedule of Benefits.

How do I bill C644 to OHIP?

C644 is submitted through OHIP's MCEDT claims system, either directly or via billing software. SnapBill validates C644 claims against the Schedule of Benefits rules before submission.

What codes are related to C644?

Codes related to C644 in the Schedule of Benefits include A644, C121.

All codes

C644

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

Full, relevant history and physical examination of one or more systems

A644 C121

Admission assessments are deemed to be a specific re-assessment by a surgical specialist who has assessed the patient prior to admission for the same illness for procedures prefixed with a 'Z' or noted as an IOP.

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