OHIP Billing Guide🩺 ServicePublished 2026
H124

H124 OHIP Billing Code: Optimize Your Emergency Department Re-assessment Billing

H124 is billed by family physicians for re-assessments in emergency departments during the night. Ensure accurate billing with correct documentation.

For Ontario Physicians & Billing StaffOHIP Schedule of Benefits Reference39.80 CAD~3 min read

1What Is the H124 OHIP Code?

What is H124?

H124 refers to the billing code used for re-assessments conducted by family physicians in emergency departments during the late-night hours of 00:00h to 08:00h. The re-assessment occurs at least two hours after an initial assessment and involves further investigation or treatment that was deemed necessary. This often applies when initial treatments, such as analgesia, need a follow-up evaluation or when awaiting test results overnight.

This code is essential for capturing the additional time and resources required for re-assessments that occur at night, ensuring comprehensive patient care. However, it can be easily missed if the appropriate time intervals and documentation are not adhered to.

2Related Codes

CodeNameFrequencyDescription
A914GP focused practice comprehensive consultation by VideoVariable$247.40 service for comprehensive video consultations.
A006Repeat consultationVariable$47.10 service for repeat consultations.
A010GP focused practice consultation by VideoVariable$95.60 video consultation service.
A011GP focused practice repeat consultation by VideoVariable$47.10 for video repeat consultations.

3Eligibility Requirements

Eligibility Requirements for H124

  1. Timing: H124 is applicable for re-assessments performed in an emergency department or hospital urgent care clinic at least two hours after the initial assessment or prior re-assessment.
  2. Documentation: The service must occur during the night hours, specifically from 00:00h to 08:00h. Accurate record-keeping of start and end times for the service is mandatory.
  3. Limitations:
    • This code is not eligible if it involves a discharge assessment.
    • It cannot be used when the patient is admitted directly after by the emergency department physician or if the re-assessment leads to a direct consultation referral.
  4. Frequency: H124 can be billed up to three times per patient per day and twice per physician per patient per day. Any service exceeding these limits is not eligible for payment.

4What Your Clinical Note Must Show

1Documentation Requirements

Accurate documentation in the patient's permanent medical record is crucial for H124 billing.

  • Record the start and end times of the re-assessment service.
  • Document the clinical justification for the re-assessment.
  • Ensure that the re-assessment occurred at least two hours after the initial assessment.

5Weak vs. Strong Note Examples

The strong note is detailed, includes times, and explains the clinical rationale. The weak note lacks specific timing and clinical context.

Weak Note

Patient reassessed in ER. Checked vitals and analgesia response. Time not recorded.

Strong Note

Re-assessment conducted at 02:15h to address patient's response to overnight analgesia. Noted improvement in pain levels. Time recorded: 02:15h to 02:45h.

  • Start and end times clearly documented.
  • Specific clinical reasons for re-assessment were provided.

6Common Reasons This Code Is Missed

1
Failure to Document Time
Lack of recorded start and end times causes claim rejection.
2
Incorrect Eligibility
Attempts to bill for non-qualifying circumstances like discharge assessments lead to denial.
3
Exceeding Frequency Limits
Exceeding the daily or per-patient limit results in ineligible claims.
Document H124 correctly — every time
Empathia's templates automatically structure your notes to capture every required element for audit-proof billing.

8Frequently Asked Questions

How much is the fee for H124?
The flat fee for H124 is CAD 39.80.
How frequently can I bill H124 per day?
It's limited to three per patient per day and two per physician per patient per day.
Can a re-assessment be billed for monitoring changes in pain management?
Yes, if further clinical investigation or treatment is needed overnight.
Is H124 applicable for follow-up on test results in family medicine?
Yes, when a night re-assessment is required to act on test results.
Can I bill H124 for a re-assessment following initial analgesia?
Yes, if it's during night hours and at least two hours from the initial assessment.
What patient scenarios justify using H124 instead of A006?
Use H124 for after-hours re-assessments requiring clinical monitoring following an emergency presentation.
Does H124 apply if the re-assessment leads to admission?
No, it can't be billed if the re-assessment results in hospital admission.
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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