Is a narcotic discrepancy reportable? Loss vs. theft vs. an explained variance

When a controlled substance doesn't match your records, the question isn't “are we over or under?” — it's “can we explain it?” Reporting to Health Canada is triggered by theft or an unexplained loss, not by every discrepancy on a count. Here's how to tell the difference. As always, confirm the current requirements with Health Canada and your provincial college; nothing here is legal advice.

The two situations that actually require a report

Federal rules require a report in only two cases. A theft — any quantity of a controlled substance removed without the pharmacy's consent — is always reportable, and a break-in or robbery should also go to the police. A loss — a physical disappearance that is unexplained when you discover it, or where diversion is suspected — is reportable when no reasonable explanation from normal pharmacy activity exists. A discrepancy you can fully account for is neither.

Direction doesn't decide it — explainability does

It's tempting to assume a shortage is a loss and an overage is harmless. Both shortcuts are wrong. An accidental prescription cancellation, for example, reverses the inventory deduction and adds the stock back to your expected on-hand — so at the next count it reads as physical-less-than-expected, exactly like a loss, even though every unit went to the right patient on a valid prescription. It isn't reportable because it's explained, not because of the arithmetic. Equally, an overage you can't account for is still an unexplained discrepancy worth investigating, not automatically benign.

Health Canada's guidance says don't over-report

Health Canada's guidance is explicit that you should not report discrepancies that can be reconciled with explanations derived from normally-accepted business activities. Its own example: a documented dispense to the wrong patient or in the wrong quantity does not need to be reported if the pharmacist can retrieve and explain it. The goal is an accurate, reconciled record — not a report for every number that looks off.

What to do with an explained discrepancy

When you can trace the variance — to a patient and Rx number, an unlogged destruction, brand or DIN switching, or a transaction dated outside the count window — you don't file a loss report. You investigate, correct your perpetual inventory so the record matches the physical count, and keep a dated reconciling note recording the cause and the correction. That note is the obligation, and it's what an inspector will want to see.

When it is a confirmed or unexplained loss

If the drug still doesn't reconcile after you've investigated, treat it as a confirmed or unexplained loss. Report it to Health Canada's Office of Controlled Substances, generally within 10 days of becoming aware, using Health Canada's controlled-substances loss or theft reporting form. The qualified person in charge reviews and submits it — and keep patient names and identifiers off the form. Thefts go to the police as well.

The bottom line

Investigate first, report second — and report only the part you genuinely cannot explain. A discrepancy of either direction is reportable when it can't be reconciled, and not reportable when it can. NarcCount's reconciliation, AI triage, and one-click loss report are built to help you work through exactly that sequence.