What are the billing rules for C356A?

C-prefix codes are for non-emergency services to acute hospital in-patients; emergency calls and special visits to in-patients use the A-prefix General Listings with premiums (A206, GP12). Needs a new written request and all consultation requirements; repeat consultations don't count toward consultation limits (GP16, GP18–GP19). Starred (*) urology consults and assessments may include a genito-urinary exam and, when needed, urethral calibration, catheterization and prostatic fluid examination, but not endoscopy (A207).

Why is C356A rejected?

ARP: OHIP describes this as 'Referring Physician Number Required': a consultation needs the referring physician's or nurse practitioner's billing number (GP16). AT2: OHIP describes this as 'Must Include Video Modality': this code is on the video-only virtual care list, so it can't be billed by telephone (K301A) (Appendix J).

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Billing code

C356A — Urology repeat consultation – hospital in-patient

Q: What is OHIP billing code C356A?

Repeat urology consultation for an in-patient: same urologist, same problem, after another physician's care in between.

Urology in-patient repeat consultation

Bill for another urology consultation on the same problem for a hospital in-patient after another physician cared for them in between.

Watch for: Needs a new written request and the referrer's billing number on the claim.

Provider	Specialist	Assistant	Anaesthetist	Non-anaesthetist
$0.00	$64.90	$0.00	$0.00	$0.00

Code: C356A
Description: Urology repeat consultation – hospital in-patient
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

Repeat urology consultation for an in-patient: same urologist, same problem, after another physician's care in between.

What it covers

C356 is a repeat consultation for a hospital in-patient (A206): an additional consultation by the same consultant for the same problem after another physician cared for the patient in between (GP19).

Billing rules

C-prefix codes are for non-emergency services to acute hospital in-patients; emergency calls and special visits to in-patients use the A-prefix General Listings with premiums (A206, GP12).
Needs a new written request and all consultation requirements; repeat consultations don't count toward consultation limits (GP16, GP18–GP19).
Starred (*) urology consults and assessments may include a genito-urinary exam and, when needed, urethral calibration, catheterization and prostatic fluid examination, but not endoscopy (A207).
Age premium of 10–30% for patients under 16 (GP64).
By video only, and for in-patients only when you aren't the MRP, no local physician with the expertise is available, and the referrer assessed the patient in person within the prior 30 days (Appendix J, A66).

Common rejections

ARP: OHIP describes this as 'Referring Physician Number Required': a consultation needs the referring physician's or nurse practitioner's billing number (GP16).
AT2: OHIP describes this as 'Must Include Video Modality': this code is on the video-only virtual care list, so it can't be billed by telephone (K301A) (Appendix J).

Related codes: C355, A356, C353, C354

Source: Schedule of Benefits (July 1, 2026), Consultations and Visits, Urology (35), Non-emergency hospital in-patient services, page A206.

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