OHIP Billing Guide🩺 ServicePublished 2026
A235

A235 OHIP Billing Code: Essential Information for Ophthalmology Consultations

Billing for A235 covers comprehensive ophthalmology consultations following a referral, ensuring adequate specialist input on complex cases.

For Ontario Physicians & Billing StaffOHIP Schedule of Benefits Reference86.25 CAD~3 min read

1What Is the A235 OHIP Code?

Ophthalmology consultations, billed under OHIP code A235, are crucial first specialist opinions provided upon referral for cases of unexplained visual loss, suspicious optic discs, or intraocular inflammation. This code facilitates the assessment from a qualified ophthalmologist, providing essential advice on complex or obscure visual conditions.

The consultation must be initiated by a written request from a referring physician, nurse practitioner, or dental surgeon. These consultations are often missed when the documentation does not meet specific OHIP requirements or the frequency limits are overlooked.

2Related Codes

CodeNameFrequencyDescription
A935Special surgical consultationEligibility criteria as per the specific surgical need.Consultations with a surgical component, billed at a higher rate for complex cases.
C935Special surgical consultationEligibility specific to surgical cases and location.Hospital-related surgical consultations with increased complexity.
A231Neuro-ophthalmology consultationBased on neurological involvement in ophthalmology cases.Consultation services involve neuro-visual conditions, requiring higher expertise.
A236Repeat consultationAs needed for follow-ups exceeding standard consultation limits.Used for repeat assessments when ongoing assessment is required.

3Eligibility Requirements

Eligibility Criteria

  1. Referral Requirement: A written request for consultation from a physician, nurse practitioner, or dental surgeon is mandatory.
  2. Frequency Limits:
    • One service per patient diagnosed with the same condition every two consecutive 12-month periods.
    • Two services are permitted for hospital inpatients or ED patients, more than 12 but less than 24 months apart.
    • For unrelated diagnoses, one service every 12 months is allowed.
  3. Non-Payable Situations:
    • When the request for referral is generated post-service by the consulting physician.
    • If the service rendered is after a previous consultation for the same diagnosis requiring ongoing management not resulting from a new referral.

4What Your Clinical Note Must Show

1Essential Documentation

Maintain detailed and compliant records for all consultations.

  • Ensure a signed written request from a referring provider is retained.
  • Record patient and consultant identification, as well as pertinent diagnosis information.
  • Include the consultation request details such as consultant's specialty and service required.
  • Document the time spent on consultations.

5Weak vs. Strong Note Examples

The strong note succeeds by including a clear referral source, detailed service notes, and compliant documentation practices, while the weak note lacks sufficient detail to meet OHIP standards.

Weak Note

Consultation completed with Dr. Smith. No referral document attached.

Strong Note

Consultation based on referral by Dr. Jones (Billing#: 123456), assessing patient John Doe (Health#: 9876543210).

Referral request dated 2023-07-10 indicates need for evaluation of suspicious optic disc. Consultation performed and detailed report sent to Dr. Jones on 2023-07-12, with findings and treatment recommendations.

  • Written referral attached
  • Precise referral details recorded
  • Consultation time from 10:00 to 10:45 recorded.

6Common Reasons This Code Is Missed

1
Incomplete Referral Documentation
Failure to include a written referral request can invalidate the claim.
2
Exceeding Frequency Limits
Misalignment with the two-service limit per conditions over two 12-month periods causes billing to revert to assessment rates.
3
Omissions in Necessary Report
A complete report for the referring provider is needed to satisfy billing requirements.
Document A235 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 OHIP code A235?
The fee for code A235 is CAD 86.25 for an ophthalmology consultation.
Can I bill more than once for the same patient with the same diagnosis in a year?
You may bill once per two consecutive 12-month periods unless specific exceptions apply.
Which types of cases typically qualify for A235 billing in Ophthalmology?
Cases with unexplained visual loss, suspicious optic discs, or intraocular inflammation typically qualify.
What documentation is critical for an ophthalmic consultation?
A signed written request, patient details, consultant identification, and the consultation report are crucial.
Can A235 consultations be rendered virtually?
Yes, A235 consultations can be rendered via video as telepsychiatry, billed as A235A.
How is an ophthalmology consultation initiated?
Through a written referral from a physician, nurse practitioner, or dental surgeon.
What is required if a patient returns with a different diagnosis?
For unrelated diagnoses, you may bill one consultation service per year.
What qualifies for a special surgical consultation (A935)?
Cases requiring more complex evaluation or potential surgical intervention qualify under A935.
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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