G322 – Nasogastric intubation under general anaesthesia
OHIP Diagnostic & Therapeutic Procedures Code — DIAGNOSTIC AND THERAPEUTIC PROCEDURES · Schedule of Benefits
This service is for the performance of a nasogastric intubation on a patient who is under general anaesthesia. The fee code is designated with a '#' prefix, which, according to , means the cost of premises, equipment, supplies, and personnel are funded by the hospital global budget (if in-hospital) or through facility costs (if in an ICHSC) and cannot be billed to the patient. Anaesthesia services are billed separately by the anaesthesiologist.
When to Use
- Use G322 when performing a nasogastric intubation specifically as a procedural component for a patient already under general anaesthesia.
- Use this code for non-elective or emergency-delayed intubations where the procedure is distinct from the primary surgical or anaesthetic service.
Common Pitfalls
- Do not bill G322 for routine nasogastric tube insertion performed in an office or clinic setting, as the code requires the patient to be under general anaesthesia.
- Avoid billing G322 in conjunction with other anaesthesia base units if the intubation is considered an integral part of the anaesthesiologist's primary procedure, as this may be flagged as unbundling.
- Failure to document the 'non-elective' or 'emergency' status of the procedure will result in the rejection of after-hours premiums like E409 or E410.
Billing Tips
- Always append the appropriate after-hours premium (E409, E410, E412, or E413) if the procedure meets the non-elective criteria, as the base fee of $9.60 is minimal.
- Ensure the anaesthesiologist bills their services separately using the C suffix (G322C) and follows the GP93 guidelines for determining base units since G322 does not have a pre-defined unit value.
Effective: April 1, 2025
J. Diagnostic and Therapeutic Procedures
DIAGNOSTIC AND THERAPEUTIC PROCEDURES
Procedure
Diagnostic and Therapeutic Procedures
The '#' prefix indicates this is a professional-only service where the technical components (premises, equipment, supplies, personnel) are funded separately when performed in a hospital or ICHSC.
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