What does “Variance report” mean?
Short answer
A variance report is a hospital's record of care that went off plan, like a wrong dose. Many places treat it as an incident report.
Also known as: variance, occurrence report, event report
What it is
It records something that went off the plan of care or the usual process. Hospitals also say incident report, occurrence report or patient safety event report, and use differs by facility. See the comparison of incident, variance and occurrence reports.
AHRQ PSNet calls these voluntary reporting systems. They rely on the people involved, usually front-line staff, for the details.
Rules and limits
CMS does not require a variance report by name. It requires hospitals to track medical errors and adverse patient events, study the causes and act (42 CFR 482.21(c)(2)). Surgery centers must do the same (42 CFR 416.43(c)(2)).
Example: bedside scanning catches a wrong-strength dose. The nurse files a variance report and pharmacy reviews it. Three like reports in a month point to a labeling problem.
Limits: PSNet says reports catch only some events. They give a count without a total, so they cannot show true rates. Record facts and system conditions, not blame (see just culture).
Frequently asked questions
Is a variance report the same as an incident report?
Often, yes. Some places use one name for process problems and the other for harm events. Check your policy before you compare data.
Is a variance report legally protected?
Not automatically. Federal privilege (42 CFR 3.204) covers patient safety work product sent to a patient safety organization or made in a patient safety evaluation system. State rules differ, so ask counsel.
What does CMS require instead of a variance report?
An ongoing program that tracks adverse events and errors, studies causes and prevents repeats: 42 CFR 482.21(c) for hospitals, 416.43(c) for surgery centers. You choose how to capture events.
Sources
- AHRQ PSNet: Patient safety event reporting (primer)
- 42 CFR 482.21: Hospital QAPI condition of participation
- 42 CFR 416.43: ASC QAPI condition for coverage
- 42 CFR 3.20: Patient safety organization definitions
- 42 CFR 3.204: Privilege of patient safety work product
Reviewed against the sources above on Oct 5, 2026. Rules change: confirm current requirements with the issuing body or your counsel before relying on any summary.
Put the definition to work.
IncidentKit turns these terms into workflow: reports, investigations, corrective actions and packets.