IBD Disease Activity Scores and Indices

Validated clinical, endoscopic, imaging, histological, paediatric and post-operative indices for Crohn’s disease and ulcerative colitis, implemented as working calculators.

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Clinical Scores
Symptom-based disease activity and treatment decisions
10 indices
Endoscopic Scores
Endoscopic activity, severity and mucosal healing
6 indices
Imaging Scores
MR enterography and intestinal ultrasound activity
3 indices
Histologic Scores
Histological activity and histological remission
3 indices
Paediatric Scores
Activity indices for children and adolescents
2 indices
Post-operative Scores
Recurrence after ileocolonic resection
1 indices

Every index in IBD Care (23)

ASUC Triage (Truelove & Witts)
Admission criteria for acute severe ulcerative colitis.
UCSeverityValidated criteria
Boston Bowel Preparation Scale (BBPS)
Segmental bowel-preparation quality at colonoscopy.
EndoscopicProcedure qualityValidated score
CDEIS
Crohn's Disease Endoscopic Index of Severity.
Crohn'sEndoscopicValidated score
Complete Mayo Score
Full Mayo including the endoscopic subscore (0-3).
UCEndoscopicValidated score
Crohn's Disease Activity Index
Composite activity index from a 7-day symptom diary.
Crohn'sClinicalValidated score
Day-3 Colectomy Risk in ASUC (Travis)
Day-3 prediction of colectomy during the admission.
UCPrognosisValidated criteria
Geboes Score
Graded histological activity classification.
UCHistologicValidated score
Harvey-Bradshaw Index
Simplified five-item clinical activity index.
Crohn'sClinicalValidated score
Magnetic Resonance Index of Activity (MaRIA)
MR enterography activity index.
Crohn'sImagingValidated score
Milan Ultrasound Criteria (MUC)
Intestinal ultrasound activity in ulcerative colitis.
UCImagingValidated score
Modified Pouchitis DAI (mPDAI)
PDAI without histology; 5 or more diagnoses pouchitis.
UCPouchValidated score
Modified Rutgeerts
Endoscopic post-operative recurrence after ileocolonic resection.
Crohn'sPost-operativeEndoscopicValidated score
Nancy Histological Index (NHI)
Five-grade histological activity index.
UCHistologicValidated score
Partial Mayo Score (Clinical)
Mayo score without the endoscopic subscore.
UCClinicalValidated score
Pediatric Crohn's Disease Activity Index
Paediatric composite activity index.
Crohn'sPaediatricValidated score
Pediatric UC Activity Index
Paediatric clinical activity index.
UCPaediatricValidated score
Pouchitis Disease Activity Index
Symptom, endoscopic and histological subscores after IPAA.
UCPouchValidated score
Robarts Histopathology Index (RHI)
Histological activity index used in trials.
UCHistologicValidated score
SES-CD
Simple Endoscopic Score for Crohn's Disease.
Crohn'sEndoscopicValidated score
Simple Clinical Colitis Activity Index (SCCAI)
Six-item clinical index; remission below 2.5.
UCClinicalValidated score
UC Intestinal Ultrasound Score
Sonographic activity index for ulcerative colitis.
UCImagingValidated score
UCEIS
Ulcerative Colitis Endoscopic Index of Severity.
UCEndoscopicValidated score
Vedolizumab CDST (Crohn's)
Clinical decision support tool for vedolizumab response.
Crohn'sPrognosisDecision tool

How these are implemented

Each index is a working calculator. Items that are left blank are never scored as zero — an incomplete form refuses to produce a result rather than reporting false remission.

Scores you save stay in your own browser. Nothing is sent to a server.

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