Z145 – Single lesion - Face or neck - General anaesthetic
OHIP Psychiatric Code — INTEGUMENTARY SYSTEM SURGICAL PROCEDURES · Schedule of Benefits
Z145 is a surgical procedure for the excision of a single lesion located on the face or neck, performed under general anaesthetic. It is listed under 'M. Integumentary System Surgical Procedures' in the Schedule of Benefits, specifically within 'Group 3 - cyst, haemangioma, lipoma'. As a surgical procedure ('Z' prefix), general rules for surgery, anaesthesia, and surgical assistance apply. The service is eligible for payment to the operating surgeon (suffix A), a surgical assistant (suffix B), and an anaesthesiologist (suffix C).
When to Use
- Use Z145 for the excision of a single benign lesion on the face or neck when the complexity or patient factors necessitate general anaesthesia.
- Use Z145 when the surgical site is the face or neck, distinguishing it from Z146, Z147, or Z148 which apply to different body regions or anatomical locations.
Common Pitfalls
- Attempting to bill a separate hospital admission assessment or consultation on the same day as Z145, which is disallowed unless it qualifies as the major pre-operative visit.
- Billing Z145 for multiple lesions; this code is strictly for a single lesion, and additional lesions must be billed using the appropriate multiple-procedure rules or secondary codes.
Billing Tips
- Ensure the anaesthesia time and any applicable age-based surgical premiums are calculated and submitted on the same claim to avoid rejection or underpayment.
- If the procedure is performed after hours, verify that the case meets the non-elective or delayed-elective criteria before applying E409 or E410 to the procedural fee.
Effective: April 1, 2026
M. Integumentary System Surgical Procedures
INTEGUMENTARY SYSTEM SURGICAL PROCEDURES
Surgical
Musculoskeletal System Surgical Procedures
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