OHIP Billing Guide🩺 ServicePublished 2026
H133

H133 OHIP Billing Code: Multiple Systems Assessment for Family Medicine

The H133 billing code for Multiple Systems Assessment covers comprehensive evaluations involving multiple systems, often in after-hours settings like emergency departments.

For Ontario Physicians & Billing StaffOHIP Schedule of Benefits Reference61.50 CAD~3 min read

1What Is the H133 OHIP Code?

The H133 OHIP billing code is designated for Multiple Systems Assessments typically in Family Medicine. It allows physicians to bill for comprehensive evaluations when multiple body systems are assessed. This code is particularly relevant in the emergency department setting, specifically during weekday evenings when patient volume increases after regular clinic hours. For example, a diabetic patient presenting with a fever and foot ulcer may require both wound inspection and a systemic infection assessment, necessitating a multiple systems approach.

Physicians often miss billing for this code due to oversight in recording sufficient documentation or misunderstanding when a multiple systems assessment qualifies over other consultation codes. It's crucial to ensure that all required elements are thoroughly documented and reflect an examination of multiple body systems.

2Related Codes

CodeNameFrequencyDescription
A914GP focused practice comprehensive consultation by VideoAs governed by specialty listingUsed for comprehensive video consultations in a focused practice setting.
A006Repeat consultationAs governed by specialty listingUsed for repeat consultations when assessment has already occurred.
A010GP focused practice consultation by VideoAs governed by specialty listingUsed for video consultations in a focused practice.
A011GP focused practice repeat consultation by VideoAs governed by specialty listingUsed for repeat video consultations in a focused practice.

3Eligibility Requirements

Eligibility Requirements

To bill for H133 under OHIP, the following criteria must be met as per the General Preamble GP21:

  • Location: The service must not be rendered in a patient's home.
  • Full History Completion: This includes the history of the presenting complaint, family medical history, past medical history, and social history.
  • Functional Inquiry: Complete inquiry into all body parts and systems, excluding breast, genital, or rectal examinations unless medically indicated or refused.
  • Examination: An examination of all body systems must be conducted, and may include detailed examination of one or more body parts or systems.

Additionally, as per GP7, the time when the service began and ended must be recorded in the patient's permanent medical record, as the service is not payable without this documentation.

4What Your Clinical Note Must Show

1Documentation Requirements

Ensure the following items are recorded in the patient's medical record:

  • Start and end time of the service
  • Full history including presenting complaint, family history, past medical history, and social history
  • Inquiry into all body parts and systems
  • Examination of all body systems

5Weak vs. Strong Note Examples

The strong note succeeds by providing a comprehensive history and examination of multiple body systems, fulfilling all documentation requirements. The weak note fails to demonstrate a multi-system inquiry or complete patient history.

Weak Note

Patient presented with fever. Checked vital signs and examined the foot.

Strong Note

Patient presented with a fever and a noted foot ulcer. History includes diabetes, family history of cardiovascular disease, and recent travel. Conducted a thorough examination, evaluating cardiovascular, respiratory, and endocrine systems. Documented systemic infection assessment and specific inquiry into other body systems.

  • History includes all required elements.
  • Multiple systems are clearly examined and documented.
  • Time of service is recorded.

6Common Reasons This Code Is Missed

1
Insufficient Documentation
Failure to document a complete history and inquiry into all systems can lead to missed billing opportunities.
2
Incorrect Time Recording
Not recording the start and end time of the service can render the service non-payable.
3
Misinterpretation of Code Requirements
Confusion over what constitutes an examination of multiple systems could result in underutilization of this code.
Document H133 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 H133 under OHIP?
The fee for billing the H133 code is CAD 61.50.
How often can H133 be billed for a patient?
Billing frequency is governed by the specialty listing and the General Preamble assessment rules, rather than a fixed annual cap.
What types of cases in Family Medicine typically require a multiple systems assessment?
Cases like diabetic patients with a foot ulcer and fever require assessment of both the wound and potential systemic infection.
What clinical context justifies using H133 instead of a focused practice consultation?
When a patient presents in an emergency department with symptoms requiring evaluation of multiple body systems.
Can I bill H133 for an after-hours emergency visit?
Yes, it is often used in emergency settings during weekday evenings when clinics are closed.
What should be included in the patient's medical record for H133 billing?
A complete history, inquiry, and examination of all systems, including time stamps when the service began and ended.
What kind of documentation is essential to justify the H133 code?
Complete multi-system evaluation, with thorough documentation and time recording, is essential.
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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