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E931
E931 – Implantation and removal of radioactive sources into brain tumour
OHIP Surgical Assists Code — NEUROLOGICAL SURGICAL PROCEDURES · Schedule of Benefits
An additional fee, to be added to N123, for the service of implanting and subsequently removing radioactive sources into a brain tumour during a stereotactic procedure.
When to Use
- Use E931 strictly as an add-on to N123 when performing the specific combined procedure of stereotactic implantation and subsequent removal of radioactive sources for brain tumors.
- Apply this code only when the surgical plan involves both the placement and the planned retrieval of the radioactive material within the same operative episode or related stereotactic session.
Common Pitfalls
- Billing E931 without the primary N123 procedure code will result in an automatic rejection as it is a mandatory add-on.
- Attempting to bill E931 for permanent seed implants (brachytherapy) where the source is not removed is an incorrect use of this code, as it specifically covers the removal component.
- Confusing E931 with E896; ensure the procedure involves stereotactic radioactive source management rather than standard intracranial tumor resection or biopsy.
Billing Tips
- Ensure the operative report clearly documents both the implantation and the removal steps to justify the E931 add-on fee in the event of an audit.
- Apply after-hours premiums E409 or E410 to the total procedural value (N123 + E931) if the procedure meets the non-elective criteria and timing requirements.
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