< Billing codes

Billing code

J164C — Follicle monitoring ultrasound

Follicle monitoring ultrasound

Bill J164 for follicle monitoring ultrasounds, including extra scans in an ovulation induction cycle after the first J162 or J138.

Watch for: Not insured when done to support in-vitro fertilization or artificial insemination.

ProviderSpecialistAssistantAnaesthetistNon-anaesthetist
$0.00$0.00$28.30$12.30$12.30
Code
J164C
Description
Follicle monitoring ultrasound
FHO+ basket
Not in the FHO+ base rate basket (Schedule 2 or 2B).
Effective date
Apr 1, 2026
Termination date
No end date

Explanation

Updated October 26, 2026

Ultrasound follicle monitoring studies, including extra scans in an ovulation induction cycle.

What it covers

J164 covers follicle monitoring studies (G6).

For ovulation induction, a complete pelvic (J162) or intracavitary (J138) ultrasound is limited to one per cycle; additional ultrasounds are claimed as J164 (G6, note).

Billing rules

  • Not insured when done to support in-vitro fertilization or artificial insemination (G2 commentary; G6 commentary).
  • Abdominal, pelvic or pregnancy ultrasounds on the same day, same patient, by any physician as a J168 nuchal translucency scan are not payable (G5).
  • Bill the technical component (H column) with suffix B and the professional component (P column) with suffix C (G2, rule 1).
  • The technical component is payable only at a hospital or a hospital's approved off-site premises; outside hospital, only the professional component (suffix C) is billable to OHIP (G1; G2, rule 2).
  • The technical component isn't payable for in-patients, or when the patient is admitted to the same hospital within 24 hours for the same condition (GP11).
  • The physician claiming the professional component must personally interpret the study (G1, note 1).

Often billed with

  • G334 telephone supervision of ovulation induction with gonadotropins, up to 10 per cycle (J46).

Related codes: J138, J162, G334, J165

Source: Schedule of Benefits (July 1, 2026), Diagnostic Ultrasound, Pelvis, page G6.

APEX checks every paid claim against the Schedule of Benefits and flags codes billed below what the visit qualified for. See how APEX works · Pricing