Z222 – Manipulation under general anaesthetic
OHIP Psychiatric Code — MUSCULOSKELETAL SYSTEM SURGICAL PROCEDURES · Schedule of Benefits
Z222 is a surgical procedure, likely falling under the Musculoskeletal System section of the Schedule of Benefits. The specific details of the procedure are not available in the provided context. As a surgical procedure, it is eligible for payment to the operating surgeon (suffix 'A'). Anaesthesia services (suffix 'C') are also payable and are calculated based on a combination of basic units and time units as described in and . Assistant services (suffix 'B') are not eligible for payment for this procedure. Key billing rules for Z-prefix codes include: - Admission Assessment: An admission assessment rendered by the operating surgeon who has previously assessed the patient for the same illness is deemed a specific re-assessment (, ). - Premiums: This service may be eligible for age-based premiums for patients under 16 years of age (), the trauma premium (E420) for severely injured patients (), and various after-hours and special visit premiums for anaesthesia services (). - Anaesthesia Extra Units: Additional units for anaesthesia may be claimed based on patient factors such as age, BMI, position during surgery, or ASA physical status classification as detailed on .
When to Use
- Use Z222 for the closed or open manipulation of a joint or fracture under general anaesthesia when no other specific surgical procedure code is applicable.
- Use this code for procedures requiring muscle relaxation or patient unconsciousness to achieve reduction or mobilization that cannot be performed in an office setting.
Common Pitfalls
- Submitting a claim for an admission assessment or hospital visit on the same day as Z222 will result in a nil payment for the procedure due to the 'not same day' restriction.
- Attempting to bill for a surgical assistant (suffix 'B') is a common error, as assistant services are explicitly ineligible for this code.
- Failing to document the exact start and end times for the anaesthesia component will lead to rejection of the time-based units for the anaesthesiologist.
Billing Tips
- Ensure the 'major pre-operative visit' is billed as a separate consultation or assessment prior to the day of surgery, as the admission assessment on the day of Z222 is not separately payable.
- When billing for the anaesthesiologist, maximize reimbursement by correctly applying the appropriate ASA physical status add-on (E022C, E017C, or E016C) and any applicable patient-factor units like E010C for BMI > 40.
Effective: April 1, 2025
N. Musculoskeletal System Surgical Procedures
MUSCULOSKELETAL SYSTEM SURGICAL PROCEDURES
Surgical
Musculoskeletal System Surgical Procedures, Anaesthesiologists' Services
When claiming time-based services (e.g., anaesthesia), the physician must record the start and end times of the service in the patient's permanent medical record.
Surgical assistant services are not eligible for payment with Z222.
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