Medical records
WNL
WNL is medical-chart shorthand for "within normal limits" — a finding examined and judged normal. Its dark-humor alternate reading, "we never looked," is the caution: WNL records a conclusion, not the underlying data.
You’ll meet WNL constantly in the Objective section of a SOAP note and in review-of-systems checklists: “Extremities: WNL.” “Neuro: WNL.” It means the clinician assessed that system and found nothing outside the normal range — in principle.
Why it matters for legal readers
Three reasons WNL deserves a slow read in litigation:
It’s a conclusion without data. “Gait WNL” doesn’t say what was tested or how. When a later dispute turns on that system, a bare WNL gives the examining clinician room to say the check was cursory — and gives the cross-examiner room to suggest the same.
Template charting produces false WNLs. Electronic records pre-populate review-of-systems sections; a distracted click can mark a system normal that was never examined. A chart that shows “musculoskeletal: WNL” on the same day the patient presented for back pain is a credibility problem for the record itself — and those template artifacts recur across visits.
A WNL is also evidence. In a personal-injury or med-mal timeline, a pre-incident “back: WNL” is baseline gold for a plaintiff; a post-incident string of WNLs is the defense’s damages argument. Which side the notation cuts for depends entirely on its date.
In the fact record
Date is everything with WNL findings, which is why FactMarshal’s medical analysis puts every normal finding on the treatment timeline relative to the incident date — the baseline and the claim separate themselves.