What are the billing rules for G844A?

Marked (+): when the immunization is the sole reason for the visit, add G700, once per patient per day however many vaccines or (+) procedures are given (J3, J54). G700 is not payable in hospital, and is paid at 15% of its fee for patients enrolled to a capitation-based group (J3). May be delegated to trained office staff, even when you aren't on site, for your own patient; the chart must name who gave it (GP62–GP63).

What is G844A often billed with?

G700 when vaccines (alone or with other (+) procedures) are the only reason for the visit (J3, J54). An assessment such as A007 (intermediate assessment or well baby care) when the vaccine is given at a regular visit; G700 isn't added then, because the vaccine isn't the sole reason (A4, J3).

Why is G844A rejected?

EH2: The health card version code on the claim doesn't match OHIP's record, often because the patient has a newer card; get the current version code and resubmit.

< Billing codes

Billing code

G844A — Meningococcal C Conjugate (Men-C) (Menjugate, NeisVac-C, Meningitec)

Q: What is OHIP billing code G844A?

Immunization with the meningococcal C conjugate (Men-C) vaccine. Add G700 when the vaccine is the only reason for the visit.

Meningococcal C vaccine

Bill G844 for the meningococcal C conjugate (Men-C) vaccine; add G700 when it is the only reason for the visit.

Watch for: Other meningococcal vaccines that aren't Men-C are billed as G538.

Provider	Specialist	Assistant	Anaesthetist	Non-anaesthetist
$8.80	$0.00	$0.00	$0.00	$0.00

Code: G844A
Description: Meningococcal C Conjugate (Men-C) (Menjugate, NeisVac-C, Meningitec)
FHO+ basket: Covered by the FHO+ base rate payment for enrolled patients, and shadow billed at 30% (50% for Schedule 2B procedures).
Effective date: Apr 1, 2026
Termination date: No end date

Explanation

Updated October 26, 2026

Immunization with the meningococcal C conjugate (Men-C) vaccine. Add G700 when the vaccine is the only reason for the visit.

What it covers

G844 is the immunization code for the meningococcal C conjugate vaccine (Men-C) (J54).

Meningococcal vaccines that are not Men-C have no listing of their own; vaccines without a specific code are billed as G538 (J54).

Billing rules

Marked (+): when the immunization is the sole reason for the visit, add G700, once per patient per day however many vaccines or (+) procedures are given (J3, J54).
G700 is not payable in hospital, and is paid at 15% of its fee for patients enrolled to a capitation-based group (J3).
May be delegated to trained office staff, even when you aren't on site, for your own patient; the chart must name who gave it (GP62–GP63).
Payable on the same day as a counselling service by the same physician (GP58).
The Schedule notes an immunization may be uninsured in some circumstances and refers to section 24 of Regulation 552 under the Health Insurance Act (J54, AA1).
FHO: a Schedule 2B core service, so for enrolled patients shadow billing is 50% of the fee (Agreement p.59 §4.3–4.4, p.89).
FHO: childhood immunizations count toward the annual childhood immunization bonus for enrolled patients aged 30–42 months (Agreement p.65 §8.1).

Often billed with

G700 when vaccines (alone or with other (+) procedures) are the only reason for the visit (J3, J54).
An assessment such as A007 (intermediate assessment or well baby care) when the vaccine is given at a regular visit; G700 isn't added then, because the vaccine isn't the sole reason (A4, J3).

Common rejections

EH2: The health card version code on the claim doesn't match OHIP's record, often because the patient has a newer card; get the current version code and resubmit.

Related codes: G700, G538, G845, G846, G841

Source: Schedule of Benefits (July 1, 2026), Diagnostic and Therapeutic Procedures, Injections or Infusions — Immunization, page J54

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