POSSUM (operative morbidity & mortality)
POSSUM (operative morbidity & mortality) - a deterministic tool in Sophie Well's Clinical Scoring & Risk group.
Open the POSSUM (operative morbidity & mortality) → Runs in your browser. No signup, no tracking.
What this is
POSSUM (operative morbidity & mortality) is one of 230 deterministic tools in Sophie Well's Clinical Scoring & Risk group. POSSUM (operative morbidity & mortality) - a deterministic tool in Sophie Well's Clinical Scoring & Risk group.
When to use it
Use this tool when you need a quick, citable reference. Every calculation runs entirely in your browser - no inputs leave your device, no account is required, no AI is involved. The site enforces a strict Content Security Policy and ships no analytics or third-party CDN.
References
Copeland GP, Jones D, Walters M. POSSUM: a scoring system for surgical audit. Br J Surg. 1991;78(3):355-360. Read the source ↗
Worked example: POSSUM physiological score 32, operative score 18: predicted 30-day morbidity 93.3%, mortality 50%.
Sophie Well is a reference and educational tool. Not medical, legal, or financial advice. Does not replace clinician judgment, professional billing review, or legal counsel.