OHIP Billing Guide🩺 ServicePublished 2026
A931

A931 OHIP Billing Code: Optometrist-Requested Assessment for Uveitis

A931 allows ophthalmologists to bill for optometrist-requested assessments of uveitis and other ocular inflammatory diseases.

For Ontario Physicians & Billing StaffOHIP Schedule of Benefits Reference157.00 CAD~3 min read

1What Is the A931 OHIP Code?

What is the A931 Billing Code?

The A931 billing code is utilized by fellowship-trained ophthalmologists in Ontario to bill for assessments of uveitis and ocular inflammatory diseases as requested by optometrists. This code is essential for cases where an optometrist identifies anterior chamber inflammation or a suspicious posterior segment change and refers the patient to a specialist.

Understanding the distinction between a typical referral and these optometrist-requested assessments is crucial, as this code applies only when specific clinical findings warrant referral. Without meticulous documentation and adherence to eligibility conditions, physicians may miss opportunities to utilize A931 appropriately.

2Related Codes

CodeNameFrequencyDescription
A935Special surgical consultationFee per serviceConsultations requiring surgical expertise.
C935Special surgical consultationFee per serviceConsultations requiring surgical expertise.
A231Neuro-ophthalmology consultationFee per serviceAssessment of neuro-ophthalmological conditions.
A235ConsultationFee per serviceGeneral ophthalmology consultation services.

3Eligibility Requirements

Eligibility Requirements

To bill using the A931 code, the following criteria must be met:

  1. Provider Qualifications: Only ophthalmologists with fellowship training in uveitis and ocular inflammatory diseases are eligible for this payment.
  2. Patient Condition: The patient must be assessed for uveitis, ocular inflammatory, or orbital inflammatory disorder.
  3. Documentation Requirements: The examination must include:
    • A dilated examination of the fundus.
    • Accurate recording of the start and end times of the consultation in the patient's permanent medical record.

4What Your Clinical Note Must Show

1Essential Documentation

Ensure the following components are recorded:

  • Dilated examination of the fundus
  • Start and end time of the assessment

5Weak vs. Strong Note Examples

The strong note provides detailed clinical observations, reflects meticulous documentation, and demonstrates compliance with billing requirements, unlike the weak note.

Weak Note

Patient referred with anterior chamber inflammation, examined.

Strong Note

Patient referred by optometrist with anterior chamber inflammation and suspected posterior segment change.

Completed dilated fundus examination revealing further inflammation.

Assessment started at 10:00 AM and concluded at 10:45 AM.

  • Optometrist referral noted
  • Dilated fundus examination
  • Exact start and end times documented

6Common Reasons This Code Is Missed

1
Lack of Fellowship Training
Physician does not have the required fellowship training, making services ineligible for this code.
2
Inadequate Documentation
Failure to document the dilated examination or service times may result in denied claims.
3
Improper Referral Source
Cases where the referral is not directly from an optometrist may lead to improper billing.
4
Non-qualifying Diagnoses
Assessments for conditions outside of uveitis or ocular inflammatory diseases are not eligible.
Document A931 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 the A931 code?
The fee for A931 is CAD 157.00.
Is A931 billable on the same day as other consultation codes?
A931 may have specific billing rules that prevent same-day billing with related consultation codes; review the Schedule of Benefits for details.
What clinical findings justify billing A931 over A235?
Billing A931 is justified when the patient has uveitis or ocular inflammatory disease requiring a specialist with fellowship training.
Can a family physician refer a patient for A931 billing?
No, the referral must be directly from an optometrist to qualify for A931 billing.
What conditions qualify a patient for assessment under A931?
A patient with uveitis, ocular inflammatory, or orbital inflammatory disorders qualifies if referred by an optometrist.
If a patient presents with eye redness and pain, can I bill A931?
Eye redness and pain could suggest uveitis; however, the referral must be from an optometrist and a dilated fundus exam must confirm the condition.
How do I document the start and end times for the service?
Record the clock-time start and end times in the patient's permanent medical record as required by OHIP rules.
Why is a dilated examination of the fundus necessary for A931?
A dilated examination is essential for diagnosing the extent of ocular inflammation and is a specific documentation requirement for billing A931.
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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