Z107 – Abscess or haematoma - General anaesthetic - ischiorectal or pilonidal
OHIP Psychiatric Code — INTEGUMENTARY SYSTEM SURGICAL PROCEDURES · Schedule of Benefits
Z107 is a surgical procedure. Surgical procedures with a 'Z' prefix are subject to specific payment rules. As per , an admission assessment by a surgical specialist who has previously assessed the patient for the same illness is deemed a specific re-assessment. The fee for surgical procedures typically includes pre-operative and post-operative care, with rules for non-Z prefix surgery on suggesting different handling for Z-codes. Anaesthesia services are payable based on a base unit value and time units as per -. Assistant services are not payable for this code as indicated by the fee schedule.
When to Use
- Use Z107 specifically for the surgical incision and drainage of an ischiorectal or pilonidal abscess or hematoma requiring general anaesthesia.
- Select Z107 when the procedure is performed in an operating room setting, distinguishing it from minor office-based drainage codes like Z102 or Z105.
Common Pitfalls
- Billing an admission assessment (A-code) on the same day as Z107 is a common rejection unless it qualifies as the major pre-operative visit where the decision to operate was finalized.
- Attempting to claim an assistant fee for Z107 will result in automatic rejection as the fee schedule explicitly excludes assistant services for this procedure.
Billing Tips
- Always append the E515 premium to Z107 if it is the sole procedure performed under general anaesthesia in an operating room to increase the fee by 110%.
Effective: April 1, 2026
M. Integumentary System Surgical Procedures
INTEGUMENTARY SYSTEM SURGICAL PROCEDURES
Surgical
Diagnostic and Therapeutic Procedures
All insured services must be documented in appropriate records. The Act requires that the record establish that: 1. an insured service was provided; 2. the service for which the account is submitted is the service that was rendered; and 3. the service was medically necessary.
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