What is OHIP billing code A621?

A621 is "Complex medical specific re-assessment", an OHIP Consultations and Visits code from the Ontario Schedule of Benefits (Physician Services).

How much does A621 pay?

The current OHIP fee for A621 is $83.40, effective 2026-04-01, per the Ontario Schedule of Benefits.

How do I bill A621 to OHIP?

A621 is submitted through OHIP's MCEDT claims system, either directly or via billing software. SnapBill validates A621 claims against the Schedule of Benefits rules before submission.

What codes are related to A621?

Codes related to A621 in the Schedule of Benefits include A623, A624, A628, C621, E078.

All codes

A621

A621 – 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 A62x codes in this part of the Schedule of Benefits, lowest fee first. Bill the level the history and examination support.

Assessments

A628 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…
$44.75
A624 Medical specific re-assessment
A medical specific re-assessment is a service rendered by a specialist in Clinical Immunology (62) that requires a full, relevant history and physical examination of one or more…
$72.00
A621 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…
$83.40
A623 Medical specific assessment
A medical specific assessment is a service rendered by a specialist in a place other than a patient’s home, requiring a full history of the presenting complaint and a detailed…
$95.95

Consultations

A626 Repeat consultation
An additional consultation rendered by the same consultant, in respect of the same presenting problem, following care rendered to the patient by another physician in the interval…
$105.25
A625 Consultation
A consultation is an assessment rendered following a written request from a referring physician, nurse practitioner, or dental surgeon (for hospital-based insured dental…
$160.30

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.

Usage limits

Limited to 4 per patient per physician per 12 month period. This limit is shared with medical specific assessments (A623). Claims in excess of this limit are adjusted to a lesser assessment fee.

A623Medical specific assessment A624Medical specific re-assessment A628Partial assessment C621Complex medical specific re-assessment (Hospital In-patient)E078Chronic Disease Assessment Premium

A621 is specific to the Clinical Immunology (62) specialty section.

The hospital in-patient equivalent code is C621.

The fee for A621 is $83.40 (as of the current Schedule).

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