OHIP Billing Guide🩺 ServicePublished 2026
A001

A001 OHIP Billing Code: Streamline Your Minor Assessments

The A001 billing code is used by family physicians for minor assessments, including brief history and examination or advice. Billed for in-person or virtual service.

For Ontario Physicians & Billing StaffOHIP Schedule of Benefits Reference26.80 CAD~3 min read

1What Is the A001 OHIP Code?

A001 is an OHIP billing code used by family physicians for performing minor assessments. This includes a brief history and examination of the affected body part or providing advice on health maintenance, diagnosis, treatment, and/or prognosis.

Typically, a minor assessment covers uncomplicated and straightforward issues such as checking a dressing, rechecking blood pressure, or addressing one simple issue in the office. Due to its brief and specific nature, A001 is often overlooked when providers do not document the interaction fully.

Remember, missing required documentation can result in billing rejections, so ensure all time and activity is robustly recorded.

2Related Codes

CodeNameFrequencyDescription
A003General assessmentFamily Practice & Practice In General listings.Comprehensive assessment for a variety of health issues.
C003General assessmentFamily Practice & Practice In General listings.General assessment provided in a hospital setting.
A004General re-assessmentFamily Practice & Practice In General listings.Re-assess a patient's progress or response to treatment.
C004General re-assessmentFamily Practice & Practice In General listings.Follow-up in a hospital setting to review patient's condition.

3Eligibility Requirements

To bill under A001, the service must involve a minor assessment as defined in the OHIP Schedule of Benefits. It can be rendered both in-person and virtually (billed as A001A). When conducted at a patient's home, it includes time spent traveling as part of the insured service. Importantly, special visit premiums cannot be billed alongside A001 for services rendered in a patient's home. For accurate billing, physicians must confirm and document the time the service started and ended.

4What Your Clinical Note Must Show

1Time Recording

Document the start and end times of the service on the patient's medical record.

  • Record both start and end times clearly.
  • Ensure documentation is in the patient's permanent medical record.

5Weak vs. Strong Note Examples

The strong note succeeds because it details the examination specifics, offers clinical advice, and includes precise time documentation, whereas the weak note lacks specifics and time documentation.

Weak Note

Patient seen for blood pressure check. Discussed results.

Strong Note

Patient presented for blood pressure recheck.

Conducted brief history and physical examination focusing on cardiovascular health.

  • Advised patient on management, and recorded BP values.
  • Time: Start 10:00 AM - End 10:15 AM.

6Common Reasons This Code Is Missed

1
Incomplete Time Documentation
Forgetting to record start and end times leads to eligible billing rejections.
2
Inadequate Clinical Detail
Insufficient description of examination or advice provided in the patient's record.
3
Eligibility Misunderstanding
Confusion about when special visit premiums apply can affect billing accuracy.
Document A001 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 A001?
The fee for A001 is $26.80 under OHIP.
Can A001 be billed the same day as another assessment?
Yes, provided the criteria for each service are fulfilled and adequately documented.
What constitutes a minor assessment in family medicine?
Simple checks such as a dressing or blood pressure recheck qualify as minor assessments.
How do you identify a minor vs. general assessment in practice?
A minor assessment focuses on a single area or issue, while a general assessment is comprehensive.
Is it common to perform minor assessments via telemedicine?
Yes, minor assessments like brief advice or examination can be efficiently conducted virtually.
What scenarios typically lead to a family practice minor assessment?
Common scenarios include follow-up visits for checking treatment effects, like BP management.
Can minor assessments lead to a referral for further treatment?
Yes, if a minor issue is identified that requires more comprehensive evaluation or specialist attention.
What should be documented for a virtual A001A service?
Document the service was completed virtually and include detailed notes as you would for an in-person visit.
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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