What are the billing rules for Z757A?

Add E542 when Z757 is performed outside hospital (S28). Surgical assistant: 6 basic units (B suffix); anaesthesia: 6 basic units (C suffix) (S28). If you did the major pre-operative visit in the previous 12 months, only a minor assessment (GP/FP) or partial assessment (specialist) is payable before the procedure that day; if the decision to operate is made that day, that visit is billable but no other assessment before the procedure (SP4).

What is Z757A often billed with?

E542 when done in the office or another setting outside hospital (S28). A034 partial assessment or A035 consultation, subject to the IOP visit rules (SP4, A107).

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Billing code

Z757A — Excision Of Benign Anal Lesion(s)

Q: What is OHIP billing code Z757A?

Excision of benign anal lesion(s). Add E542 when done outside hospital; local excision for malignancy is S249.

Benign anal lesion excision

Bill for excising one or more benign anal lesions; an assessment can be billed in addition.

Watch for: Local excision for malignancy is S249; add E542 when done outside hospital.

Provider	Specialist	Assistant	Anaesthetist	Non-anaesthetist
$47.15	$0.00	$77.46	$95.76	$95.76

Code: Z757A
Description: Excision Of Benign Anal Lesion(s)
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

Excision of benign anal lesion(s). Add E542 when done outside hospital; local excision for malignancy is S249.

What it covers

Z757 is excision of one or more benign anal lesions, listed under Rectum (S28). Local excision for malignancy is S249, and fulguration of condylomata is Z549 (local) or Z758 (general anaesthetic) (S28).

As a Z code it is an independent operative procedure, payable in addition to an assessment (GP4).

Billing rules

Add E542 when Z757 is performed outside hospital (S28).
Surgical assistant: 6 basic units (B suffix); anaesthesia: 6 basic units (C suffix) (S28).
If you did the major pre-operative visit in the previous 12 months, only a minor assessment (GP/FP) or partial assessment (specialist) is payable before the procedure that day; if the decision to operate is made that day, that visit is billable but no other assessment before the procedure (SP4).
When the lesions treated are intra- or perianal condylomata acuminata, the fee includes anoscopy, so Z543 isn't added (S27).

Often billed with

E542 when done in the office or another setting outside hospital (S28).
A034 partial assessment or A035 consultation, subject to the IOP visit rules (SP4, A107).

Related codes: S249, Z549, Z758, Z544, E542, S251

Source: Schedule of Benefits (July 1, 2026), Digestive System Surgical Procedures, Rectum, page S28; note S27; Surgical Preamble SP4.

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