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Billing code

G313A — Electrocardiogram - Twelve Lead - Professional Component - Must Include Written Interpretation

ECG interpretation

Bill G313 for interpreting a 12-lead ECG with a written report; the technical component, recording the tracing, is G310.

Watch for: Not payable without symptoms, signs or a guideline-supported indication, or for routine pre-operative screening for non-cardiac surgery.

Code

G313A

Description

Electrocardiogram - Twelve Lead - Professional Component - Must Include Written Interpretation

FHO+ basket

Covered by the FHO+ base rate payment for enrolled patients, and shadow billed at 30% (50% for Schedule 2B procedures).

Effective date

Apr 1, 2026

Termination date

No end date

Explanation

Updated October 26, 2026

Interpretation of a 12-lead ECG, with a written report. Not payable without symptoms, signs or a guideline-supported indication.

What it covers

G313 is the professional component of a twelve-lead electrocardiogram and must include a written interpretation (J14). The technical component, recording the tracing, is G310 (J14).

The professional component covers supervising the test where appropriate and interpreting the results; the interpretation must be done personally by the physician who bills it (J1).

Billing rules

• Not payable for a patient without symptoms, signs or an indication supported by current clinical practice guidelines for that patient (J14).
• Not payable for routine preoperative screening for non-cardiac surgery unless the patient has a cardiac risk factor, known or suspected cardiorespiratory disease, or another clinical indication (J14).
• Must include a written interpretation of the tracing (J14).
• Payable in addition to a consultation or assessment at the same visit (J3).
• FHO: a Schedule 2 core (in-basket) service, with G310 (Agreement p.77).

Often billed with

• G310 technical component when you also record the ECG (J14).
• A007 or another assessment at the visit where the ECG is done (J3).

Common rejections

• ARF: OHIP describes this as 'Missing Physician Referring Number': the claim went in without a referring provider number where OHIP's claim edits expected one. If another provider requested the test, add their billing number and resubmit.

Related codes: G310, G319, G315, G311, G320

Source: Schedule of Benefits (July 1, 2026), Diagnostic and Therapeutic Procedures, Electrocardiography (ECG) — Electrocardiogram, twelve lead, page J14; professional component elements J1

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