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Pneumonia Severity Index (PSI/PORT) Score Calculator

Risk class and inpatient/outpatient decision for CAP.

Calculates the PSI/PORT score for community-acquired pneumonia from demographic, comorbidity, physical exam, and lab findings. Risk class I–V guides inpatient admission decision.

Daniel Oh By Daniel Oh
Published Last reviewed 1 min read

Inputs

Results

Enter values and click Calculate to see results.
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How to use this calculator

  1. Fill in the inputs above using the units you already have.
  2. Values update automatically as you type — no submit button needed.
  3. Hover any result row for the underlying formula and intermediate values.

Formula

Risk class I: age ≤50 no comorbidities; II ≤70; III 71–90; IV 91–130; V >130 pts.

In depth

Calculates the PSI/PORT score for community-acquired pneumonia from demographic, comorbidity, physical exam, and lab findings. Risk class I–V guides inpatient admission decision.