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Billing code

Q590A — FHO/FHN ONLY if influenza is sole reason add to G590

Flu-shot-only visit premium

FHN and FHO physicians bill Q590A with G590 when a flu shot is the only reason for the visit, in place of G700.

Watch for: Not payable with G700 or an assessment; if you assess the patient, bill the assessment plus G590 instead.

Code

Q590A

Description

FHO/FHN ONLY if influenza is sole reason add to G590

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

FHN/FHO premium billed with G590 when a flu shot is the only reason for the visit, in place of the G700 sole-visit premium.

What it covers

Q590A is the basic flu shot fee-per-visit premium for FHN and FHO physicians, for visits where the influenza vaccine is the sole reason for the visit (AQ3; OMA Q-codes guide p.15). It is billed with G590 (influenza immunization) in place of the G700 sole-visit premium (OMA Q-codes guide p.15; Agreement p.72 §11.7).

Appendix Q is information only, not part of the Schedule (AQ1). The rules below come from the 2020 OMA Q-codes guide and, for FHO physicians, the April 2026 FHO agreement (FHO+ terms from April 1, 2026).

Billing rules

• FHN and FHO physicians only; other physicians get EPA (AQ3; OMA Q-codes guide p.15).
• Payable for enrolled and non-enrolled patients (OMA Q-codes guide p.15; Agreement p.72 §11.7).
• Not payable with G700 (OMA Q-codes guide p.15; Agreement p.72 §11.7).
• Not payable with an assessment. If you assess the patient, bill the assessment plus G590 instead (OMA Q-codes guide p.15).
• Only one of Q590 or Q593 is payable per patient per year (Agreement p.72 §11.7–11.8).
• Appendix Q and the FHO agreement list different payment values for Q590A; the remittance advice shows the value in force (AQ3; Agreement p.72 §11.7).

Often billed with

• G590 influenza immunization, on the same visit (J54; OMA Q-codes guide p.15).

Common rejections

• EPA: Q590A is payable only to FHN and FHO physicians; a physician outside those groups gets EPA, 'network billing not allowed' (OMA Q-codes guide p.15).

Related codes: G590, G700, Q593, Q130

Source: Schedule of Benefits (July 1, 2026), Appendix Q (information only), page AQ3

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