OHIP billing code for ECG
Updated October 26, 2026
A 12-lead ECG is billed in two parts: G310A ($7.70) for the technical component, recording the tracing, and G313A ($4.55) for the professional component, which must include a written interpretation. If you record and read it in your office, bill both.
| Code | What it is | Fee | When to bill it |
|---|---|---|---|
| G310A | ECG, twelve lead, technical component | $7.70 | You provide the equipment, staff and recording of the tracing. |
| G313A | ECG, twelve lead, professional component | $4.55 | You personally interpret the tracing and write the interpretation. |
How to bill it
Recorded and read in your office: G310A + G313A, with the assessment if you also assessed the patient (J3, J14).
Only reading a tracing someone else recorded: G313A alone, with a written interpretation (J1, J14).
Use the diagnostic code for the symptom or condition that justified the ECG.
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 pre-operative screening for non-cardiac surgery unless the patient has a cardiac risk factor, known or suspected cardiorespiratory disease, or another clinical indication (J14).
- The interpretation must be done personally by the physician who bills G313 (J1).
- Payable in addition to a consultation or assessment at the same visit (J3).
- The technical component of a test done in a hospital follows the hospital payment rules (J1, GP11).
- FHO: G310 and G313 are in-basket core services (Agreement Schedule 2, p.77).
Common rejections
- ARF: OHIP's description is 'missing physician referring number'. If another provider requested the ECG, add their billing number and resubmit.
Questions
What is the OHIP billing code for ECG?
A 12-lead ECG is billed in two parts: G310A ($7.70) for the technical component, recording the tracing, and G313A ($4.55) for the professional component, which must include a written interpretation. If you record and read it in your office, bill both.
Can I bill an ECG for a routine physical?
No. G310 and G313 aren't payable without symptoms, signs or a guideline-supported indication for that patient (J14).
Can I bill an ECG before cataract surgery?
Not as routine pre-op screening. The Schedule says ECG isn't indicated before low-risk surgery under local anaesthetic, such as cataract surgery, unless there is an independent clinical indication (J14).
Related: OHIP billing code for urinalysis
Sources
- Schedule of Benefits: Physician Services (July 1, 2026)
- INFOBulletin 260308: 2024 PSA, FHO+ implementations for April 2026
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