What is OHIP billing code S177?

S177 is "Intestinal obstruction (mechanical) - with resection", an OHIP Urology code from the Ontario Schedule of Benefits (Physician Services).

How much does S177 pay?

The current OHIP fee for S177 is $1207.25, effective 2026-04-01, per the Ontario Schedule of Benefits.

How do I bill S177 to OHIP?

S177 is submitted through OHIP's MCEDT claims system, either directly or via billing software. SnapBill validates S177 claims against the Schedule of Benefits rules before submission.

What codes are related to S177?

Codes related to S177 in the Schedule of Benefits include S175, S176, S180.

All codes

S177

S177 – Intestinal obstruction (mechanical) - with resection

OHIP Urology Code — DIGESTIVE SYSTEM SURGICAL PROCEDURES · Schedule of Benefits

Ask AI Bill This Code — Sign Up Free

A one-stage surgical procedure for the correction of a mechanical intestinal obstruction, which includes the resection of a portion of the intestine. This service is listed under the Digestive System Surgical Procedures section. Note: If performed as a staged procedure, different billing rules apply. Refer to the Surgical Preamble for details on staged procedures.

When to Use

Use S177 for a single-stage mechanical intestinal obstruction resection where the bowel is resected and primary anastomosis or closure is achieved in one operative session.
Use S177 when the obstruction is caused by intrinsic mechanical factors (e.g., stricture, intussusception) requiring excision, distinguishing it from S175 or S176 which typically involve simple lysis of adhesions or non-resectional procedures.

Common Pitfalls

Billing S177 alongside lysis of adhesions (S175) is generally considered bundled; ensure the resection is the primary procedure and not incidental to a more complex procedure that should be billed under a different code.
Failing to document the specific mechanical nature of the obstruction can lead to audit rejections, as S177 is strictly for mechanical obstruction and not for functional or paralytic ileus.
Attempting to bill S177 for a staged procedure (e.g., initial diversion followed by later resection) violates the Surgical Preamble; staged procedures require adherence to the specific billing rules outlined in SP2.

Billing Tips

Always verify if the procedure qualifies for E409A or E410A based on the exact start time of the surgery, as these non-elective premiums significantly increase the base fee for S177.
If the patient meets the criteria for the Trauma Premium (E420), ensure the Injury Severity Score is explicitly documented in the chart, as this is a frequent point of audit focus for surgical claims.

Have a specific question? Ask our billing assistant

Provider Fee$1,207.25

Surgical Assistant Fee$77.46

Anaesthetist Fee$111.72

Non-Anaesthetist Fee$111.72

Effective: April 1, 2026

Ready to bill this code?

SnapBill makes OHIP billing simple — auto-filled codes, validation, and batch submission.

Get Started Free Already have an account? Sign in