What are the billing rules for E520A?

Maximum 2 services of any combination of E720, E520, E519 and E518 per patient per day (S19). Only one of Z571, Z518, Z517 or Z516 is payable per patient per day; bill the one that matches the largest polyp excised (S19). Excision of polyps under 3 mm isn't payable (S19).

What is E520A often billed with?

Z518, or a larger first-polyp code (Z517, Z516), for the largest polyp (S19). The colonoscopy code for the indication, such as Z498 follow-up of abnormal colonoscopy or Z496 signs or symptoms, with extent add-ons E740, E741, E747 and E705 (S17–S18).

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Billing code

E520A — - Each Additional Polyp (6 Mm - 9 Mm) - Add

Q: What is OHIP billing code E520A?

Colonoscopic polypectomy add-on for each additional polyp of 6 mm to 9 mm. Maximum 2 additional-polyp add-ons per patient per day.

Extra polyp removal, 6–9 mm

Add for each additional polyp of 6 to 9 mm removed through the colonoscope, after the first-polyp code.

Watch for: At most 2 of E720, E520, E519 and E518 combined per patient per day; polyps under 3 mm aren't payable.

Provider	Specialist	Assistant	Anaesthetist	Non-anaesthetist
$77.50	$0.00	$0.00	$0.00	$0.00

Code: E520A
Description: - Each Additional Polyp (6 Mm - 9 Mm) - Add
FHO+ basket: Not in the FHO+ base rate basket (Schedule 2 or 2B).
Effective date: Apr 1, 2025
Termination date: No end date

Explanation

Updated October 26, 2026

Colonoscopic polypectomy add-on for each additional polyp of 6 mm to 9 mm. Maximum 2 additional-polyp add-ons per patient per day.

What it covers

E520 is the add-on for each additional polyp of 6 mm to 9 mm excised through the colonoscope, listed under Z518, excision of the first polyp of 6 mm to 9 mm (S19).

The first polyp code is chosen by the largest polyp excised: Z571 (3–5 mm), Z518 (6–9 mm), Z517 (10–19 mm) or Z516 (20–29 mm). Additional polyps use the add-on for their size: E720 (3–5 mm), E520 (6–9 mm), E519 (10–19 mm) or E518 (20–29 mm) (S19).

Billing rules

Maximum 2 services of any combination of E720, E520, E519 and E518 per patient per day (S19).
Only one of Z571, Z518, Z517 or Z516 is payable per patient per day; bill the one that matches the largest polyp excised (S19).
Excision of polyps under 3 mm isn't payable (S19).
Fulguration is included in the colonoscopy codes, so it isn't billed separately (S19).
Marked '#': the fee doesn't include premises, equipment, supplies or staff, which are funded by the hospital budget or ICHSC facility costs; patients can't be charged for them (GP13).

Often billed with

Z518, or a larger first-polyp code (Z517, Z516), for the largest polyp (S19).
The colonoscopy code for the indication, such as Z498 follow-up of abnormal colonoscopy or Z496 signs or symptoms, with extent add-ons E740, E741, E747 and E705 (S17–S18).

Related codes: Z518, E720, E519, E518, Z571, Z517, Z516, E685

Source: Schedule of Benefits (July 1, 2026), Digestive System Surgical Procedures, Intestines (Except Rectum), Colonoscopy — polyp excision, page S19

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