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S770
S770 – Hysterotomy
OHIP Urology Code — FEMALE GENITAL SURGICAL PROCEDURES · Schedule of Benefits
S770 represents a hysterotomy, which is a surgical procedure involving an incision into the uterus. This procedure is listed in the Schedule under the 'Abortion' subsection of 'Corpus Uteri' procedures. - The surgeon's fee (S770A) is a set amount. - The assistant's fee (S770B) is calculated based on 6 basic units plus time units. See and for calculation details. - The anaesthetist's fee (S770C) is calculated based on 7 basic units plus time units. See and for calculation details.
When to Use
- Use S770 for a hysterotomy when the procedure is performed as a primary surgical intervention on the uterus, distinct from a standard Cesarean section (which has its own specific codes).
- Select S770 when the clinical intent is a uterine incision for therapeutic purposes, such as the removal of a large pedunculated fibroid or other intrauterine pathology that cannot be managed via hysteroscopy.
Common Pitfalls
- Billing S770 in conjunction with other uterine procedures without checking the Schedule for 'incidental' or 'included' services, which can lead to automatic rejections for unbundling.
- Failing to document the specific start time of the procedure, which is mandatory for calculating after-hours premiums (E409, E410) and assistant/anaesthesia time units.
Billing Tips
- Ensure the assistant and anaesthetist use the corresponding suffix codes (S770B and S770C) to trigger the correct unit-based payment calculations rather than attempting to bill the surgeon's fee code.
- If the patient meets criteria for age-based premiums, verify the patient's DOB in the system to ensure the percentage increase is applied automatically, as manual overrides are frequently audited.
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