OHIP Billing Guide🩺 ServicePublished 2026
A256

A256 OHIP Billing Code: Special Optometrist-Requested Assessment

A256 is used for billing special assessments requested by optometrists and conducted by ophthalmologists. It ensures proper evaluation of concerns identified during routine eye exams.

For Ontario Physicians & Billing StaffOHIP Schedule of Benefits Reference194.65 CAD~3 min read

1What Is the A256 OHIP Code?

A256 is an OHIP billing code specifically for special assessments requested by optometrists and performed by ophthalmologists. Typically, this service is utilized when an optometrist identifies an issue like a lesion, increased intraocular pressure, or a field defect during a routine eye examination and requires the expertise of an ophthalmologist for a detailed assessment.

This specialized assessment allows for a comprehensive evaluation of the patient’s condition to determine the appropriate course of action. The assessment addresses concerns that may not be adequately managed by the optometrist alone, ensuring timely and specialized care for the patient.

Physicians often overlook this billing code due to unfamiliarity with its specific referral origins or misunderstanding the need for documented start and stop times, which are crucial for compliance and payment eligibility.

2Related Codes

CodeNameFrequencyDescription
A935Special surgical consultationNo fixed limit, follows consultation rulesUsed for special surgical consultations within ophthalmology.
C935Special surgical consultationNo fixed limit, follows consultation rulesSimilar to A935 but listed separately under schedule categories.
A231Neuro-ophthalmology consultationNo fixed limit, follows consultation rulesFocuses specifically on neuro-ophthalmological conditions such as optic neuritis.
A235ConsultationNo fixed limit, follows consultation rulesGeneral consultation code for initial patient evaluations.

3Eligibility Requirements

The service under code A256 is eligible for billing once every 24 months per patient per physician. It is important to record the start and stop times of the assessment in the patient’s permanent medical record to qualify for payment. A256 can be rendered virtually but only via video (billed as A256A); telephone consultations are not covered under this service.

This code must adhere to documentation and time recording guidelines as outlined in the General Preamble GP7. Practitioners should familiarize themselves with these stipulations to ensure compliance and reimbursement.

4What Your Clinical Note Must Show

1Medical Record Documentation

Mandatory recording of start and stop times in patient records.

  • Record exact start time of the assessment
  • Record exact stop time of the assessment
  • Ensure detailed notes are included in the medical record

5Weak vs. Strong Note Examples

The strong note is successful due to its detailed patient assessment documentation and accurate recording of the consultation times. The weak note fails to provide sufficient detail and lacks time records necessary for compliance.

Weak Note

Patient seen for optometrist-referred issue. Discussed treatment options.

Strong Note

Patient referred by optometrist following routine exam identifying increased intraocular pressure.

Details of examination reveal potential glaucoma; plan includes further testing.

Consultation times recorded: Start 14:05, Stop 15:10.

  • Full documentation of referred issue from optometrist
  • Specific examination findings with clinical impressions
  • Complete time recording as per billing policy

6Common Reasons This Code Is Missed

1
Improper Time Recording
Failure to document the start and stop times can lead to rejected claims.
2
Incorrect Referral Recognition
Confusion over whether the referral source qualifies can cause billing errors.
3
Virtual Consultation Misalignment
Attempting to bill for telephone assessments can lead to claim denial since only video consultations are eligible.
Document A256 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 A256 under OHIP?
The fee for billing A256 is CAD 194.65.
Can A256 be billed more than once per year for the same patient?
No, A256 is limited to one assessment per physician per patient every 24 months.
What clinical scenarios qualify for A256 billing in ophthalmology?
A256 is for assessments initiated due to optometrist findings like lesions or pressure increases that require an ophthalmologist's expertise.
When is an optometrist-requested assessment needed?
When optometrists identify significant abnormalities like field defects that need further evaluation.
What must be included in the patient's record for A256 billing?
Start and stop times of the assessment must be recorded along with detailed examination findings.
Can an A256 assessment be conducted virtually?
Yes, but it must be via video as telephone consultations are not covered.
What types of findings typically lead an optometrist to refer to an ophthalmologist?
Findings like unexplained field defects or significant pressure changes often lead to referrals.
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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