OHIP Billing Guide🩺 ServicePublished 2026
A466

A466 OHIP Billing Code: Optimizing Repeat Consultations for Infectious Disease Specialists

A466 covers repeat consultations in the infectious disease realm, ideal for revisits post-treatment by other physicians, requiring a fresh referral.

For Ontario Physicians & Billing StaffOHIP Schedule of Benefits Reference124.00 CAD~3 min read

1What Is the A466 OHIP Code?

A466 represents a 'Repeat Consultation' under the OHIP billing schedule, particularly relevant to infectious disease specialists. This consultation code is utilized when a previously treated patient returns for the same problem after management by another physician, necessitating a new written referral. Common scenarios involve patients with chronic hepatitis or recurrent infections whose clinical status has changed. Despite its specific requirements, it's often missed due to failure to secure or document the new referral request.

Infectious disease specialists rely on this code to revisit patients whose conditions necessitate their focused expertise again, ensuring continuity of care. Timely and proper use of A466 enhances patient outcomes and workflow efficiency by streamlining necessary follow-up consultations.

2Related Codes

CodeNameFrequencyDescription
A275Limited consultationN/AUsed for limited infectious disease consultations.
A460Comprehensive infectious disease consultationN/AApplicable for in-depth, comprehensive consultations.
A465ConsultationN/AGeneral consultation service in infectious diseases.
C275Limited consultation (hospital in-patient)N/ALimited consultation for hospital in-patients.

3Eligibility Requirements

To bill under A466, certain eligibility criteria must be met:

  • New Written Referral: Each repeat consultation must be predicated on a new written request from a referring physician, nurse practitioner, or dental surgeon.
  • Exclusions to Frequency Limits: A466 does not adhere to the usual consultation frequency limits; however, it requires a new written request each time.
  • Specific Context: The consultation is considered a repeat when it follows subsequent management by another physician for the same presenting issue.
  • Virtual Services: A466 may be provided virtually through video (A466A) but is not applicable for telephone consultations.

Failure to fulfill these requirements results in a downgraded payment to a relevant lower assessment fee as stipulated by the OHIP guidelines.

4What Your Clinical Note Must Show

1Medical Record Documentation

Ensure comprehensive documentation for each repeat consultation.

  • Record start and stop times of the consultation in the patient's medical record.
  • Maintain a copy of the new written referral request from the referring physician, nurse practitioner, or dental surgeon.

5Weak vs. Strong Note Examples

The strong note excels by providing detailed context, clinical assessments, and a forward treatment plan, whereas the weak note lacks specific details and a documented care strategy.

Weak Note

Patient returned for evaluation of chronic hepatitis. Reviewed past notes and made adjustments.

Strong Note

Patient visited for repeat consultation concerning chronic hepatitis transformation post-recent care by referring rheumatologist.

Review of liver function tests and comparison with previous records indicates deterioration.

Plan: Adjust antiviral regimen; follow-up in 3 months or as symptoms dictate.

  • Includes specific details about the patient's condition and changes from previous assessments.
  • Mentions the external care that occurred between visits.
  • Articulates a specific plan of care moving forward.

6Common Reasons This Code Is Missed

1
Absence of a New Written Referral
Failure to obtain or document a new written referral leads to billing adjustments.
2
Insufficient Documentation
Incomplete clinical details or missing start and stop times results in reduced fees.
3
Misunderstanding Frequency Exclusions
Misinterpretation of frequency rule exemptions may lead to underbilling.
4
Virtual Care Constraints
Billing for non-video virtual consultations can lead to misunderstandings about code eligibility.
Document A466 correctly — every time
Empathia's templates automatically structure your notes to capture every required element for audit-proof billing.

8Frequently Asked Questions

What is the fee for billing A466?
The A466 billing code for a repeat consultation under OHIP is set at CAD 124.00.
Does A466 require a new referral each time it's billed?
Yes, each A466 repeat consultation requires a new written request from a referring physician.
What types of infectious disease cases typically qualify for A466?
Chronic hepatitis or cases of recurrent infection often necessitate repeat consultations when conditions change.
Why might a patient be referred back to an ID specialist for a repeat consultation?
Patients typically return for changes in their condition, such as worsened chronic hepatitis after treatment by another provider.
Is A466 applicable for virtual consultations?
Yes, A466 can be billed for video-based virtual consultations, but not for telephone services.
What distinguishes a repeat consultation from a regular follow-up?
Unlike a standard follow-up, a repeat consultation under A466 must involve another physician managing the patient for the same issue in the interim.
Can I bill A466 for patients treated by a nurse practitioner?
Yes, as long as there is a new written referral from the nurse practitioner.
When is A466 not eligible for use?
A466 is ineligible if the consultation does not involve a new written request or doesn't follow another physician's management between visits.
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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