H101 – Minor assessment
OHIP Obstetrics Code — CONSULTATIONS AND VISITS · Schedule of Benefits
H101 is a minor assessment rendered by an Emergency Department Physician. As defined in , a minor assessment includes one or both of the following: a. a brief history and examination of the affected part or region or related to a mental or emotional disorder; or b. brief advice or information regarding health maintenance, diagnosis, treatment and/or prognosis. This service applies to unscheduled patients in a hospital emergency department or a Hospital Urgent Care Clinic, as described in . It is specifically for services rendered on Monday to Friday, during daytime hours from 08:00h to 17:00h.
When to Use
- Use H101 for simple, single-system complaints such as a minor laceration requiring only a brief history and examination, or a simple follow-up for a minor condition.
- Use H101 when providing brief counseling or health maintenance advice for a non-urgent issue that does not meet the complexity threshold of an intermediate assessment (H102).
- Use H101 during the 08:00h to 17:00h weekday window when the clinical encounter is limited in scope and does not require the comprehensive workup associated with higher-level H-prefix codes.
Common Pitfalls
- Attempting to claim a Special Visit Premium (e.g., H112, H113, H114) with H101 will result in automatic rejection, as these are strictly prohibited for 'H' prefix codes.
- Billing H101 for services rendered outside the 08:00h to 17:00h Monday to Friday window is a common error; services outside these hours must utilize the appropriate evening or weekend H-prefix codes.
- Over-coding a minor encounter as an intermediate assessment (H102) when documentation only supports a brief history and examination risks audit clawbacks for upcoding.
Billing Tips
- If you are performing interim admission orders for a patient being admitted to the hospital, ensure you append H105 to your H101 claim to capture the additional work, provided you are not also billing a full admission assessment.
- Always verify the time of service against the H101 window; if the patient is seen at 17:01h on a weekday, you must switch to the appropriate evening H-prefix code rather than H101.
Effective: April 1, 2026
A. Consultations and Visits
CONSULTATIONS AND VISITS
Assessment
Hospital and Institutional Consultations and Assessments
All insured services must be documented in appropriate records. The Act requires that the record establish that: 1. an insured service was provided; 2. the service for which the account is submitted is the service that was rendered; and 3. the service was medically necessary.
H105 is payable in addition to the initial consultation or assessment rendered in the emergency department or Hospital Urgent Care Clinic provided that each service is rendered separately by the Emergency Department Physician.
H105 is an insured service payable at nil if the hospital admission assessment is payable to the Emergency Department Physician.
With the exception of ultrasound guidance, (J149) or emergency department investigative ultrasound (H100), ultrasound services listed in this Schedule rendered by an Emergency Department Physician are not eligible for payment.
When any other service is rendered by the Emergency Department Physician in premium hours (and assessments may not be claimed), apply one of the following premiums per patient visit. - H112: nights (00:00h to 08:00h) - H113: daytime and evenings (08:00h to 24:00h) on Saturdays, Sundays or Holidays
- H114: - evenings (17:00h to 24:00h) on Mondays to Thursdays
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