OHIP Billing Guide🩺 ServicePublished 2026
A465

A465 OHIP Billing Code: Maximize Reimbursement for Infectious Disease Consultations

A465 is an OHIP billing code used by infectious disease specialists for patient consultations. Ensure correct usage for optimal reimbursement.

For Ontario Physicians & Billing StaffOHIP Schedule of Benefits Reference205.90 CAD~3 min read

1What Is the A465 OHIP Code?

What is OHIP Billing Code A465?

The A465 billing code is designated for consultations provided by infectious disease specialists under the OHIP in Ontario. These consultations are typically initiated through a formal referral from another medical professional, addressing specific patient concerns such as a positive serology result, a travel-related illness, or an antibiotic allergy assessment. It is crucial for infectious disease specialists to comprehend the requirements for this billing code to ensure accurate billing and optimal reimbursement.

Typical misses can occur when the consultation does not meet all defined criteria, particularly in maintaining comprehensive documentation or accurately capturing referral details. Ensuring thorough and accurate record-keeping can significantly reduce these errors and improve claim acceptance.

2Related Codes

CodeNameFrequencyDescription
A275Limited consultationNo specific frequency limit notedA consise consultation service in infectious disease listings.
A460Comprehensive infectious disease consultationNo specific frequency limit notedA detailed and extensive infectious disease consultation.
A466Repeat consultationSee frequency limits for repeat consultationsA follow-up consultation when criteria for repetition are met.
C275Limited consultationNo specific frequency limit notedFor hospital in-patient setting.

3Eligibility Requirements

Eligibility Requirements for A465

Payment Rules

  • A complex infectious disease assessment must encompass all specific assessment elements, or the payable amount will be downgraded.
  • A maximum of six complex infectious disease assessments is allowed per patient, per physician annually. Excess services will incur a reduction in fees.

Conditions When Consultation is Not Payable

  • If a consultation request is solicited post-service, by asking a referring physician or equivalent to submit the request, the consultation cannot be billed.
  • Following a consultation billing for the same diagnosis, a referral for ongoing management renders any subsequent service non-payable as a consultation.

Virtual Delivery

  • A465 is billable if rendered virtually via video (A465A), but not by telephone.

Consultation Requirements

  • Must stem from a written referral request by a qualified professional.
  • Needs to include a detailed written report back to the referrer.
  • Accurate time recording of the start and end of the consultation is mandatory.

4What Your Clinical Note Must Show

1Medical Record Documentation

Complete and thorough documentation is essential for billing A465:

  • Start and stop times of the consultation must be recorded.
  • A written request from the referring professional must be present, except in common medical record environments.
  • Written report detailing findings, opinions, and recommendations must be provided to the referrer.

5Weak vs. Strong Note Examples

The strong note succeeds by thoroughly documenting all necessary details, including start/stop times and providing a written report, whereas the weak note lacks critical documentation and detail.

Weak Note

Inadequate details on referral and consultation process.

Lacking start and stop times.

Strong Note

Patient referred by Dr. Smith (GP) due to newly identified antibiotic allergy. Comprehensive review of patient history and testing conducted.

Written report completed and sent to Dr. Smith. Consultation start: 10:00 AM, end: 11:00 AM.

  • Includes referring physician and patient's details.
  • Clear documentation of start and stop times.
  • Comprehensive summary of consultation findings sent as report.

6Common Reasons This Code Is Missed

1
Incomplete Documentation
Failure to record start and stop times or lack of a detailed written report.
2
Referral Mismanagement
Consultation initiated without a written referral, or referral documentation missing.
3
Exceeding Frequency Limits
Attempting to bill consultations beyond allowed frequency without qualifying circumstances.
Document A465 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 A465 under OHIP?
The fee for billing code A465 is CAD 205.90 as a flat fee.
How often can you bill A465 for the same patient?
You can bill A465 once per two consecutive 12-month periods, except under certain inpatient or ER conditions detailed in eligibility criteria.
What type of infectious disease consultations qualify for A465?
Consultations for issues like positive serology results, travel-related illnesses, or antibiotic allergy assessments typically qualify.
Can A465 be billed for a routine follow-up appointment?
No, A465 is not applicable for routine follow-ups; a new referral with a complex issue is required.
Does A465 cover telephone consultations?
No, A465 only covers virtual consultations conducted via video; telephone consultations are not eligible.
What should a written referral include?
A written referral must include consultant's name, referrer's name and billing number, and relevant patient information.
In what settings can A465 consultations be conducted?
Consultations can occur in outpatient clinics or virtually via video. Special requirements apply for hospital or ER settings.
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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