PASI Score (Psoriasis Area and Severity Index)
Quantifies psoriasis severity by extent and intensity to guide biologic therapy eligibility
- Highest activation tier
- Mandatory
- How it is scored
- Scored in code; a detected disagreeing draft value is flagged for correction
- Scoring type
- questionnaire
- Care settings
- Inpatient, Outpatient
When it activates
Scribeable activates a calculator from the encounter. The PASI Score (Psoriasis Area and Severity Index) can activate when the transcript or pasted chart context documents any of these:
- Psoriasis severity assessment
- Biologic therapy candidacy
- Psoriasis treatment response monitoring
A coded diagnosis can also activate it. ICD-10 prefixes carried by the registry: L40.
Inputs the note needs
1 input. Each is resolved from the transcript, the pasted chart context and charted labs; an input marked "asks you" is requested as a clarification when it is undocumented.
| Input | Type | Unit / options | Guidance |
|---|---|---|---|
| PASI score (0-72) | exam |
Scoring
4 body regions: head (10%), upper extremities (20%), trunk (30%), lower extremities (40%). Each region: redness/thickness/scaling (0-4) x area (0-6) x region weight. Total 0-72.
Interpretation
0-5: Mild. 5-10: Moderate. >10: Severe — eligible for biologic therapy.
Evidence
Sources carried in Scribeable's citation registry for this calculator; guideline version: Fredriksson 1978.
- Fredriksson T, Pettersson U. Severe psoriasis — oral therapy with a new retinoid (PASI Score introduced)Fredriksson & Pettersson (PASI) 1978 · 1978 · link last verified 2026-03-28
How Scribeable handles it in the note
When an encounter activates the PASI Score (Psoriasis Area and Severity Index) at the mandatory tier, Scribeable resolves its inputs from the transcript, the pasted chart context and any charted labs, and asks you for a missing input you can supply before the note is finalised. Bedside-exam and separately ordered study values are not requested one input at a time; a calculator that carries a combined clarification question may still put that single question to you.
The score is computed in code from the resolved inputs, not recalled by the language model. If the draft states a PASI Score (Psoriasis Area and Severity Index) 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.
See it activate on your own encounter
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