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Pediatric Crohn's Disease Activity Index (PCDAI) Calculator
x402
Pediatric Crohn's Disease Activity Index (PCDAI) Calculator is a paid API for AI agents from api.magentlab.com, paid per call via x402, $0.005/call, status unknown (last checked 2026-09-13).
Computes the Hyams 1991 PCDAI score (0–100) by summing eleven caller-assigned item points for pediatric Crohn's disease activity assessment.
Price / call$0.005
Success—
StatusUnknown
How this service works
Hyams 1991 Pediatric Crohn's Disease Activity Index (PCDAI): eleven caller-assigned item points. hematocrit and esr are 0, 2.5, or 5; the other nine are 0, 5, or 10. magent sums only (max 100) and does not return activity bands. magent does not examine the child or assign hematocrit age/sex tables. Not a diagnosis. Not CDAI, SES-CD, or PUCAI.
Output
Returns the total PCDAI score as a numeric sum (0–100) of the eleven caller-supplied item points. Does not return activity severity bands, diagnostic labels, or clinical interpretation. The calling system is responsible for assigning valid item point values per the Hyams 1991 criteria.
Example use cases
Outpatient Crohn's monitoring visit
“I'm reviewing a follow-up for a 10-year-old with known Crohn's disease. Her assigned item points are: abdominal pain 5, stools 5, well-being 5, hematocrit 5, ESR 5, albumin 5, weight 5, height 5, abdomen 5, perirectal 0, extra-intestinal 0. What's her PCDAI score?”
Research cohort disease activity scoring
“I need to batch-score PCDAI for a study patient. Points are: abdominal pain 10, stools 10, well-being 10, hematocrit 5, ESR 5, albumin 10, weight 10, height 10, abdomen 10, perirectal 5, extra-intestinal 5. Can you compute the total?”
Clinical trial eligibility screening
“For a clinical trial requiring PCDAI ≥30, can you score this child's index? Abdominal pain 5, stools 5, well-being 5, hematocrit 2.5, ESR 0, albumin 5, weight 5, height 5, abdomen 5, perirectal 0, extra-intestinal 0.”
Technical details
Endpoint
GEThttps://api.magentlab.com/api/calc/pcdaiWhen to prefer
Use this endpoint when you need a fast, deterministic arithmetic computation of the Hyams 1991 PCDAI total from already-assigned item points. Prefer it over manual calculation to avoid arithmetic errors in multi-item scoring. Do not use it as a substitute for CDAI (adult Crohn's), SES-CD (endoscopic), or PUCAI (ulcerative colitis); those are separate instruments.
Side effects
- Missing required query parameters returns an error
- Non-valid point values (not in the allowed set for each item) may produce unexpected sums or errors
- Score interpretation (mild/moderate/severe bands) is not provided by the endpoint
- Caller-assigned item points that do not reflect actual clinical findings produce a meaningless score
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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