Z101 – Abscess or haematoma - Local anaesthetic - subcutaneous - one
OHIP Psychiatric Code — INTEGUMENTARY SYSTEM SURGICAL PROCEDURES · Schedule of Benefits
This code represents a surgical procedure for the incision of an abscess or haematoma, performed with local anaesthetic on a subcutaneous area. As a 'Z' code, it is subject to general surgical rules found in the OHIP Schedule of Benefits General Preamble. For example, an admission assessment performed by a surgical specialist prior to a 'Z' prefix procedure may be deemed a specific re-assessment (, ). The service is also eligible for age-based fee premiums for patients under 16 years of age () and for an additional fee (E542) when performed outside a hospital.
When to Use
- Use Z101 for the simple incision and drainage of a single subcutaneous abscess or haematoma performed under local anaesthetic.
- Use Z101 when performing a minor surgical procedure that does not meet the criteria for more extensive excision codes like Z104 or Z106.
Common Pitfalls
- Billing Z101 in addition to a minor assessment code (A007) on the same day is often rejected; ensure the procedure is the primary service or that the assessment is for a separate, unrelated clinical issue.
- Attempting to bill Z101 multiple times for multiple abscesses is incorrect; use Z101 for the first lesion and check the Schedule for appropriate secondary codes if multiple sites are treated.
- Failing to append E542 when the procedure is performed in a community office setting results in a loss of the $12.65 premium.
Billing Tips
- Always verify if the procedure qualifies for the E542 add-on, as it is specifically designed to compensate for the overhead of performing minor surgery outside of a hospital facility.
- If the patient is under 16, ensure the appropriate GP64 age-based premium is applied to the Z101 base fee to maximize the claim value.
Effective: April 1, 2026
M. Integumentary System Surgical Procedures
INTEGUMENTARY SYSTEM SURGICAL PROCEDURES
Surgical
Musculoskeletal System Surgical Procedures
Specific details for this code were not found in the provided context. The information is derived from general rules applicable to surgical procedures (prefix 'Z').
Ready to bill this code?
SnapBill makes OHIP billing simple — auto-filled codes, validation, and batch submission.