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Billing code

A601A — Cardiology complex medical specific re-assessment

Complex cardiology re-assessment

Bill A601 when a cardiologist re-assesses a patient because the condition is complex, obscure or serious.

Watch for: Report in writing to the primary care physician, or it is paid at a lesser fee; limit 4 per patient per 12 months.

Code

A601A

Description

Cardiology complex medical specific re-assessment

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

Complex medical specific re-assessment by a cardiologist for a complex, obscure or serious condition, with a written report to the primary care physician.

What it covers

A complex medical specific re-assessment is a re-assessment needed because of the complexity, obscurity or seriousness of the patient's condition, and includes all the requirements of a medical specific re-assessment (GP24).

A601 is the cardiology (60) version (A79).

Billing rules

• Report your findings, opinions or recommendations in writing to the patient's primary care physician, or it is paid at a lesser fee (GP24).
• Limit 4 per patient per physician per 12 months; medical specific assessments and complex re-assessments combined are also limited to 4 (GP24).
• Add E088 when the patient has an established, documented diagnosis of congestive heart failure and you see them in the office or a hospital out-patient clinic (not ED, in-patient or LTC) (A79).
• Can be done by video or phone as comprehensive virtual care when you have an existing relationship with the patient (Appendix J AJ1).

Often billed with

• E088 congestive heart failure premium (A79).

Common rejections

• AT3: Billed as virtual care (K300A/K301A) without an existing patient-physician relationship (A66).

Related codes: A604, A603, A608, E088, C601

Source: Schedule of Benefits (July 1, 2026), Consultations and Visits, Cardiology (60), page A79; rules GP24.

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