PSI/PORT Score
Stratifies pneumonia severity into risk classes to guide site-of-care decisions (outpatient vs inpatient vs ICU)
- Highest activation tier
- Recommended
- How it is scored
- Scored in code; a detected disagreeing draft value is flagged for correction
- Care settings
- Emergency department, Inpatient
When it activates
Scribeable activates a calculator from the encounter. The PSI/PORT Score can activate when the transcript or pasted chart context documents any of these:
- Community-acquired pneumonia severity
- Pneumonia disposition decision
- Pneumonia admission criteria
- CAP risk stratification
- Pneumonia ICU consideration
A coded diagnosis can also activate it. ICD-10 prefixes carried by the registry: J13, J14, J15, J16, J17, J18.
Note-type scope: it activates on notes whose subject resolves to pulmonology, emergency medicine, hospital medicine, critical care. A note that resolves to another subject does not carry it even when the clinician's specialty matches; a note with no resolvable subject (a generic consultation) falls back to the specialty match.
Inputs the note needs
20 inputs. Each is resolved from the transcript, the pasted chart context and charted labs; at this calculator’s tier a missing input is never requested, and a missing required input keeps the score out of the draft.
| Input | Type | Unit / options | Guidance |
|---|---|---|---|
| Patient age in years (women: age - 10) | age | ||
| Biological sex (female subtracts 10 from age points) | history | ||
| Nursing home resident | history | ||
| Neoplastic disease | history | ||
| Liver disease | history | ||
| Congestive heart failure | history | ||
| Cerebrovascular disease | history | ||
| Renal disease | history | ||
| Altered mental status | exam | ||
| Respiratory rate ≥30/min | vital | /min | |
| Systolic BP <90 mmHg | vital | mmHg | |
| Temperature <35°C or ≥40°C | vital | °C | |
| Heart rate ≥125/min | vital | bpm | |
| Arterial pH <7.35 | lab | ||
| BUN ≥30 mg/dL (≥11 mmol/L) | lab | mg/dL | |
| Sodium <130 mEq/L | lab | mEq/L | |
| Glucose ≥250 mg/dL | lab | mg/dL | |
| Hematocrit <30% | lab | % | |
| PaO2 <60 mmHg | lab | mmHg | |
| Pleural effusion on imaging | exam |
Scoring
Age (years for men, years-10 for women), Nursing home (+10), Neoplastic disease (+30), Liver disease (+20), CHF (+10), CVD (+10), Renal disease (+10), Altered mental status (+20), RR ≥30 (+20), SBP <90 (+20), Temp <35 or ≥40 (+15), HR ≥125 (+10), pH <7.35 (+30), BUN ≥30 (+20), Na <130 (+20), Glucose ≥250 (+10), Hematocrit <30% (+10), PaO2 <60 (+10), Pleural effusion (+10).
Age(Patient age in years (women: age - 10), −10 if female Biological sex (female subtracts 10 from age points)) + nursing home(+10) + comorbidity points (cancer/liver/CHF/CVD/renal) + exam points (AMS, RR, SBP, temp, HR) + lab points (pH, BUN, Na, glucose, Hct, PaO2, effusion) → PSI class I-V
Interpretation
Class I: Age <50, no comorbidities, normal vitals → 0.1% mortality, outpatient. Class II (≤70): 0.6% mortality, outpatient. Class III (71-90): 2.8%, brief observation. Class IV (91-130): 8.2%, inpatient. Class V (>130): 29.2%, inpatient +/- ICU.
Evidence
Sources carried in Scribeable's citation registry for this calculator; guideline version: Fine MJ et al. 1997.
- Fine MJ et al. A prediction rule to identify low-risk patients with community-acquired pneumonia (PSI/PORT)Fine et al. (PSI/PORT) 1997 · 1997 · Level I · link last verified 2026-03-28
How Scribeable handles it in the note
When an encounter activates the PSI/PORT Score (its highest tier is recommended), Scribeable does not ask you for missing inputs. The score is computed in code from whatever inputs resolve from the transcript, the pasted chart context or charted labs; a computed value is written into the draft only when every required input already resolves.
The score is computed in code from the resolved inputs, not recalled by the language model. If the draft states a PSI/PORT Score value that disagrees with the computed one, the disagreement is flagged to the second drafting pass, which is instructed to correct the score and its interpretation before you see the note.
Classified as a risk score: activated strictly, by a documented trigger, never by a permissive reading of the encounter.
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