Billing code
Z437A — Cardioversion (electrical And/or Chemical) - Maximum Of Three Sessions Per Patient, Per Day
Heart rhythm cardioversion
Bill for electrical and/or chemical cardioversion, up to three sessions per patient per day.
Watch for: Not payable the same day as your life-threatening critical care, and included in comprehensive care G557 to G559.
| Provider | Specialist | Assistant | Anaesthetist | Non-anaesthetist |
|---|---|---|---|---|
| $92.45 | $0.00 | $0.00 | $95.76 | $95.76 |
- Code
- Z437A
- Description
- Cardioversion (electrical And/or Chemical) - Maximum Of Three Sessions Per Patient, Per Day
- FHO+ basket
- Not in the FHO+ base rate basket (Schedule 2 or 2B).
- Effective date
- Apr 1, 2026
- Termination date
- No end date
Explanation
Updated October 26, 2026
Cardioversion, electrical and/or chemical. Up to three sessions per patient per day.
What it covers
Z437 is cardioversion, electrical and/or chemical (J9). It is marked #, so the fee does not include premises, equipment, supplies or staff, which are hospital funded (J1).
As a Z-code, it is an independent operative procedure (IOP), subject to the Surgical Preamble (J1, SP4). The listing also shows 6 basic anaesthesia units for an anaesthetist (J9).
Billing rules
- Maximum three sessions per patient per day (J9).
- Not payable to the same physician on the same day as life-threatening critical care (G521/G522/G523), which includes cardioversion (J26).
- Included in comprehensive care (G557–G559), which covers cardioversion (J31).
- IOP rule: if your major pre-operative visit was in the past 12 months, only a partial assessment (specialist) is payable the same day before the procedure; if the major pre-operative assessment is the same day, no other consultation or assessment before the IOP is payable (SP4).
Often billed with
- A consultation or assessment, since Diagnostic and Therapeutic procedures are payable in addition to a consultation or assessment unless stated otherwise (J3).
Common rejections
- A3H: The claim exceeds the maximum number of services, such as more than three cardioversion sessions for the patient in one day (J9).
Related codes: Z443, G115, G303, G521, G557, G400
Source: Schedule of Benefits (July 1, 2026), Diagnostic and Therapeutic Procedures, Cardiovascular, page J9.
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