What are the billing rules for C189A?

Limited to 6 visits per patient per month; extra visits are not payable (A144, GP43). A visit needed for an acute intercurrent illness beyond the monthly limit is billed as C121, which is outside the limit (GP43). If the patient was referred to you in hospital, count weeks from the date you first assessed them. If care was transferred to you, count from the actual admission date (GP43).

What is C189A often billed with?

E083 MRP subsequent visit premium, or E084 on weekends and holidays (GP47). C121 for extra visits due to acute intercurrent illness (GP43).

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Billing code

C189A — Hospital subsequent visit – after week 13 (neurology)

Q: What is OHIP billing code C189A?

A neurologist's routine hospital visit after the 13th week of the stay, up to 6 per patient per month.

Neurology hospital visit, week 14+

Bill for a neurologist's routine hospital visit after the 13th week of the patient's stay.

Watch for: Maximum 6 per patient per month; bill an extra visit for an acute intercurrent illness as C121 instead.

Provider	Specialist	Assistant	Anaesthetist	Non-anaesthetist
$0.00	$40.05	$0.00	$0.00	$0.00

Code: C189A
Description: Hospital subsequent visit – after week 13 (neurology)
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

A neurologist's routine hospital visit after the 13th week of the stay, up to 6 per patient per month.

What it covers

A subsequent visit is any routine assessment in hospital after the hospital admission assessment (GP43).

C189 covers visits after the thirteenth week of the admission (A144).

Billing rules

Limited to 6 visits per patient per month; extra visits are not payable (A144, GP43).
A visit needed for an acute intercurrent illness beyond the monthly limit is billed as C121, which is outside the limit (GP43).
If the patient was referred to you in hospital, count weeks from the date you first assessed them. If care was transferred to you, count from the actual admission date (GP43).
Seeing your own or a transferred patient while already in hospital is a subsequent visit. Seeing another physician's patient on an emergency basis uses the A-prefix General Listings (GP43).
As the MRP, add E083 (+30%), or E084 (+45%) on Saturdays, Sundays and holidays (Neurology is an eligible specialty). Only one of E083/E084 per patient per day, and only if you meet the hospital-remuneration condition (GP47).

Often billed with

E083 MRP subsequent visit premium, or E084 on weekends and holidays (GP47).
C121 for extra visits due to acute intercurrent illness (GP43).

Related codes: C182, C187, C121, C188, C184

Source: Schedule of Benefits (July 1, 2026), Consultations and Visits, Neurology (18), page A144. Rules GP43, GP47.

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