ASA Physical Status Classification — free guideline decision tool
ASA Physical Status classification for preoperative risk communication, from I (healthy) to VI (brain-dead donor).
Open guideline tool →Guideline-based
Implements the decision logic from published clinical guidelines.
Runs in your browser
No installation. Enter the patient's values and get a guideline recommendation instantly.
Data stays local
Nothing is uploaded. Results are for licensed clinicians only.
Common questions
What does ASA Physical Status Classification do?
Use before surgery to assign a physical-status class and append 'E' for emergencies, supporting anesthetic risk discussion.
How is the result calculated?
ASA I healthy; II mild systemic disease; III severe but not incapacitating; IV severe, constant threat to life; V moribund; VI brain-dead donor; add 'E' for emergency procedures.
Is this a substitute for clinical judgement?
No. All results are decision-support only, for licensed clinicians. They must be individualized to the whole patient and the latest guideline version.
Run ASA Physical Status Classification now
ASA Physical Status classification for preoperative risk communication, from I (healthy) to VI (brain-dead donor).
Open guideline tool →For licensed clinicians. Not a substitute for clinical judgement.