OHIP Billing Guide🩺 ServicePublished 2026
A606

A606 OHIP Billing Code: Efficiently Manage Repeat Cardiology Consultations

Code A606 allows cardiologists to bill OHIP for repeat consultations when a new written request is provided by a referring physician. It covers cases where patient symptoms change significantly.

For Ontario Physicians & Billing StaffOHIP Schedule of Benefits Reference105.25 CAD~4 min read

1What Is the A606 OHIP Code?

A606, the OHIP billing code for repeat consultations in cardiology, is used when the same cardiologist is requested to reassess a patient for the same problem due to changes in symptoms or clinical findings. Examples include a new arrhythmia detected on Holter monitoring or deterioration in heart failure. This code is utilized when a patient's condition has evolved enough to warrant further specialist input.

Repeat consultations differ from re-assessments in that each requires a new written request, emphasizing the complexity or new aspect of the clinical issue. This makes the code applicable in scenarios where comprehensive follow-up is crucial. It is important to distinguish this from a general re-assessment which does not necessitate a new referral, potentially leading to misbilling.

2Related Codes

CodeNameFrequencyDescription
A600Comprehensive cardiology consultationConsultation frequency limits applyInitial comprehensive assessment of a new or significantly changed heart condition.
A605ConsultationConsultation frequency limits applyStandard consultation for new or unresolved cardiology concerns.
A675Limited consultationLimited to minor issues or follow-up of a resolved conditionFor minor cardiology issues or brief follow-ups.
C600Comprehensive cardiology consultationConsultation frequency limits applyHospital in-patient comprehensive cardiology assessment.

3Eligibility Requirements

Eligibility Requirements

  • Written Request: Each repeat consultation under A606 necessitates a new written request from a referring physician, nurse practitioner, or dental surgeon.
  • Consultation Exclusions: Repeat consultations are excluded from consultation frequency limits as per GP17.
  • Virtual Care: A606 can be billed as A606A for virtual consultations, but only via video connection, as telephone consultations are not eligible under this code for virtual care.
  • In-Patient Equivalent: The equivalent code for hospital in-patient services is C606. Ensure proper use of codes based on the patient's location and consultation delivery method.

4What Your Clinical Note Must Show

1Documentation Essentials

To ensure compliance and correct billing, documentation must include:

  • A new written request from the referring physician, nurse practitioner, or dental surgeon.
  • Details of the patient's evolving symptoms or new clinical findings prompting the repeat consultation.
  • Clear documentation of the consultation services provided, emphasizing the review and management of the specific cardiac problem outlined in the referral.

5Weak vs. Strong Note Examples

The strong note highlights the new symptoms, changes in the clinical picture, and specifics of the referral, aligning with A606 requirements. In contrast, the weak note lacks detail and evidence of a relevant new referral.

Weak Note

Patient seen again for follow-up. Discussed heart condition. Advised on medication.

Strong Note

Patient seen for repeat consultation due to new symptoms: increased shortness of breath and suspected arrhythmia.

Referral from Dr. Smith notes worsening heart failure post-new Holter results.

Reviewed current treatment plan, adjusted beta-blocker dosage, and discussed potential for further testing, including echocardiogram.

  • Referral details from Dr. Smith
  • Patient's new symptoms and Holter results
  • Changes in the treatment plan and future testing discussed

6Common Reasons This Code Is Missed

1
Lack of New Written Request
Failing to obtain a new written request from a referring provider can lead to incorrect billing, as repeat consultations require this documentation.
2
Misclassification of Consultation Type
Confusing repeat consultations with routine follow-ups or re-assessments without substantial change in symptoms can lead to coding errors.
3
Inadequate Documentation of Clinical Changes
Not clearly documenting the specific changes in the patient's condition or treatment plan that justify a repeat consultation.
Document A606 correctly — every time
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8Frequently Asked Questions

What is the fee for billing A606?
The fee for A606 Repeat Consultation is CAD 105.25.
Can A606 be billed more than once for the same patient?
Yes, provided each billing follows a new written request from a referring physician, and the patient's condition warrants a repeat consultation.
What types of clinical changes warrant using A606 in cardiology?
In cardiology, changes such as new arrhythmias on Holter monitoring, worsening heart failure symptoms, or increased shortness of breath justify the use of A606.
How should I document a patient with worsening heart failure symptoms?
Document the referral, how symptoms like increased shortness of breath signify change, and outline any adjustments to the treatment plan made during the repeat consultation.
Can A606 be billed for a patient referred after an emergency department visit?
Yes, a new referral from an emergency department addressing changes in the patient’s cardiac status can qualify for A606 billing.
A GP requests a retesting of Holter results. Does this qualify for A606?
If the request includes a review of new symptoms or findings such as arrhythmias observed in Holter tests, this could qualify for A606 billing.
What happens if a repeat consultation is rendered by telephone?
A telephone consultation would not qualify under A606 as an eligible virtual care service, which is limited to video consultations for this code.
What referral sources commonly result in a repeat consultation?
Repeat consultations often occur from referrals by GPs or specialists when the patient's cardiac condition changes or new symptoms develop.
Disclaimer: This article is intended as a general educational resource for physicians and billing staff. It does not constitute billing advice or a definitive interpretation of the OHIP Schedule of Benefits. Always verify current billing codes, eligibility criteria, and documentation requirements directly against the official Schedule of Benefits or consult with a qualified medical billing specialist.
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