OHIP error code EH5: service date outside the eligible period

Why it fires

• Batched or retroactive billing where the claim carries the submission date rather than the encounter date.
• Multi-day procedures dated to the post-operative note or administrative close rather than the day the procedure was performed.
• Time-based K codes where documented start and stop times do not align with the claimed service date.
• Special visit premiums where the on-call log and the claim date disagree across a shift boundary.

Every fee code in the Schedule carries conditions covering not just what the service is but when it can be claimed relative to other services, documentation, or a triggering event. Where the service date falls outside that window, even by a day, the claim rejects with EH5 regardless of whether the service was genuinely rendered.

Time-based services are the most exposed. Interview fees, psychotherapy and other K codes require documented start and stop times on the day of service, and a claim whose date does not match the chart timestamp is a clean EH5 trigger. Retrospective time entry produces the same result.

Surgical and anaesthesia claims are vulnerable for a different reason. The service date should reflect when the procedure was performed rather than when the note was dictated. Emergency department special visit premiums add a third pattern: a Friday overnight call recorded as Saturday can be technically accurate for a 1am service and still misalign with the on-call period in the ministry system.

What it costs

The claim is rejected outright. The full fee for that service is unpaid until a corrected claim is accepted, and the correction usually requires the chart rather than a quick field edit.

Working a single rejection through root cause, chart pull, correction, resubmission and confirmation takes between 15 and 30 minutes of skilled staff time. A practice billing 200 or more claims a month with an EH5 rate of 3 to 5% is carrying six to ten rejections a month, which is 18 to 60 hours of rework across a year for this code alone.

That assumes every rejection is caught. Practices that do not audit rejection patterns systematically tend to resubmit once, maybe twice, then write the claim off. Revenue that was earned and documented simply disappears.

How to fix it going forward

• Require start and stop time fields in the EMR template for any time-based code, auto-populating into the billing record on the day of service.
• Flag any claim submitted more than a few days after the service date for manual review before it reaches the submission queue.
• Confirm with the billing software vendor that the current Schedule update is reflected in the fee code library.
• Record the time a call was received, the physician location when paged, and the time service was rendered for every special visit premium.

The chart and the claim must agree, and both must be dated the day the service occurred. Retrospective reconstruction is the most common origin of EH5 on time-based codes, and it is the easiest to design out with a template that will not save without both timestamps.

Schedule changes are the second origin. Where post-operative care rules or specialty categories change and the code library is not updated, claims go out under old date-eligibility assumptions and reject in volume. These read as clerical errors and are really Schedule knowledge gaps.

Is it recoverable?

Recoverable by resubmission inside the window

Correct the service date against the chart record and resubmit inside three months of the date of service. Where the window has closed, the claim may be recoverable by written application to the ministry.

The first path is a corrected resubmission with the service date matched to the chart. Where the original claim reached the Claims Error Report inside three months of the service date, that footprint supports a corrected resubmission after the window closes.

Recovering historical EH5 rejections is harder than it sounds, because each one needs the chart pulled to establish the true service date before anything can be resubmitted. That is project work rather than a billing task, and it is why these accumulate unrecovered.

Related codes

• VH9: health number not registered with the ministry
• A34: multiple duplicate claims
• ADM: emergency equivalent or other visits
• AEV: visit only allowed

Frequently asked questions

What does OHIP error code EH5 mean?

EH5 means the service date on the claim falls outside the eligible period for that fee code. Every Schedule listing carries conditions about when a service can be claimed, and a date outside that window rejects even where the service was genuinely rendered.

Is EH5 the same as a stale dated claim?

No. A stale dated rejection means the claim was submitted too long after the service date. EH5 means the service date itself sits outside the window the Schedule allows for that code. The fix is different in each case.

Which fee codes trigger EH5 most often?

Time-based codes requiring documented start and stop times, consultations and assessments tied to an active referral, special visit premiums with on-call timing rules, and surgical or anaesthesia codes with post-operative date windows.