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Billing code

G900A — Residual Urine Measurement By Ultrasound

Residual urine by ultrasound

Bill G900 for measuring post-void residual urine by ultrasound.

Watch for: Not payable with pelvic or intracavity ultrasound, G192–G194, or G475 with cystometrogram or voiding pressure studies.

ProviderSpecialistAssistantAnaesthetistNon-anaesthetist
$12.70$0.00$0.00$0.00$0.00
Code
G900A
Description
Residual Urine Measurement By Ultrasound
FHO+ basket
Not in the FHO+ base rate basket (Schedule 2 or 2B).
Effective date
Apr 1, 2025
Termination date
No end date

Explanation

Updated October 26, 2026

Measuring residual urine (post-void residual) by ultrasound.

What it covers

G900 is measurement of residual urine by ultrasound (J115).

It is marked #: premises, equipment and staff for the procedure aren't part of the fee (J115, SP1).

Billing rules

  • Not payable with a pelvic ultrasound, intracavity ultrasound, G192–G194, or G475 when cystometrogram and/or voiding pressure studies are done (J115).
  • Payable with G475 when only uroflow studies (flow rate, with or without postural studies) are done with the residual urine measurement (J115).

Often billed with

  • G475 when the G475 service is uroflow only (J115).

Common rejections

  • ADH: OHIP describes this as 'Cannot be billed together': G900 isn't payable with pelvic or intracavity ultrasound, G192–G194, or G475 for cystometrogram/voiding pressure studies (J115).

Related codes: G475, G192, G193, G477

Source: Schedule of Benefits (July 1, 2026), Diagnostic and Therapeutic Procedures, Urology, page J115.

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