Remittance Advice · Payment-time (remittance)
OHIP explanatory code H8
Hospital number and/or admission date required for in-hospital service
What H8 means
The Ministry of Health’s official wording for H8 is: “Hospital number and/or admission date required for in-hospital service.”
This code appears as an explanatory code on your monthly Remittance Advice (RA). It means the claim was adjudicated — paid, reduced, or refused — for the reason below. A claim already on your RA generally shouldn't be blindly resubmitted; follow the suggested action.
How to fix H8
An in-hospital service needs the hospital number and/or admission date - supply the missing detail and pursue payment through a Remittance Advice Inquiry with the corrected information.
Payment-time codes appear on the monthly Remittance Advice after adjudication. Some are informational, some explain a reduced or refused payment. Where you disagree with the outcome, the usual route is a Remittance Advice Inquiry or written inquiry — not resubmitting the same claim, which can create a duplicate.
Related codes
- H4Maximum fee allowed per week after 6th week to pediatricians
- H5Maximum fee allowed per month after the 13th week
- H6Allowed as supportive or concurrent care
- H7Allowed as chronic care
- H9Concurrent care already claimed by another doctor
- HAAdmission assessment claimed by another physician-hospital visit fee applied
- HBSubsequent Visit Already Paid Same Day
- HFConcurrent or supportive care already claimed in period
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Code meaning per Ontario Ministry of Health — Remittance Advice Explanatory Codes / Messages (March 2026). The suggested action is general information for Ontario physicians, not billing, legal, or tax advice — codes and rules change, so verify against the current Ministry of Health documents before relying on a claim.