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Psi

Result

Calculated result 0 Based on the values entered.
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Psi — free online calculator.

Formula

PSI/PORT: age + comorbidities + vitals. ≤50: Class I/II outpatient; >91: Class V
  • Psi calculates its result from Age/demographic points, Comorbidity points, Physical exam points, Laboratory/radiographic points. It uses the formula PSI/PORT: age + comorbidities + vitals. ≤50: Class I/II outpatient; >91: Class V. Change any input to recalculate the result instantly. This is an informational calculation and is not medical advice.
  • The main inputs are Age/demographic points, Comorbidity points, Physical exam points, Laboratory/radiographic points. Enter them in the units and format shown in the calculator.
  • Use the measurement units shown beside each field. The result is an estimate and should be interpreted in context.
  • Changing any input above recalculates the result with the same calculation engine used by this page.

Example: Psi

Inputs
  • Age/demographic points: 0
  • Comorbidity points: 0
  • Physical exam points: 0
  • Laboratory/radiographic points: 0

Using Age/demographic points = 0, Comorbidity points = 0, Physical exam points = 0, Laboratory/radiographic points = 0, the calculated result is 0.

Sample result: Calculating…

Frequently asked questions

What does the Psi calculate?

Psi — free online calculator.

Which values should I enter?

Enter Age/demographic points, Comorbidity points, Physical exam points, Laboratory/radiographic points using the units and format shown beside each field.

What formula does this calculator use?

The calculator uses the following relationship: PSI/PORT: age + comorbidities + vitals. ≤50: Class I/II outpatient; >91: Class V.

Why might my result differ from another source?

Results can differ because measurement methods, rounding and assumptions vary. This calculator is an estimate and is not a medical diagnosis.

Does the result update automatically?

Yes. Changing an input updates the result using the same calculation engine shown on this page.

Page information

Updated: October 7, 2026