Joint involvement, serology, acute-phase reactants, and symptom duration scoring; ≥6 supports definite RA classification.

Classification · Updated 4/19/2026

Mandatory age, shoulder presentation, and laboratory features; clinical points without ultrasound or ultrasound-positive pathway.

Classification · Updated 4/19/2026

Applies the 2015 ACR-EULAR gout classification framework with sufficient criterion and weighted domains.

Diagnosis · Updated 4/19/2026

BASDAI-style ankylosing spondylitis disease activity estimate from 6 patient-reported 0-10 domains.

Disease Activity · Updated 4/19/2026

Bath Ankylosing Spondylitis Global score from patient global assessments.

Disease Activity · Updated 4/19/2026

ICBD points-based classification support for Behcet syndrome.

Diagnosis · Updated 4/19/2026

Clinical-laboratory feature count for eosinophilic granulomatosis with polyangiitis education.

Vasculitis · Updated 4/19/2026

ANA entry plus total weighted classification points (official table) for systemic lupus erythematosus.

Autoimmune · Updated 4/19/2026

WPI and SSS threshold check; duration and exclusions still required clinically.

Pain · Updated 4/19/2026

American College of Rheumatology classification criteria for giant cell (temporal) arteritis.

Vasculitis · Updated 4/19/2026

Classification criteria for GPA (historically Wegener granulomatosis).

Vasculitis · Updated 4/19/2026

ACR 1990 classification criteria checklist: count of criteria met (>=3 supports classification).

Vasculitis · Updated 4/19/2026

Systemic sclerosis feature screen toward classification workup.

Rheumatology Calculators · Updated 4/19/2026

Sjögren workup screen toward ACR/EULAR 2016 classification.

Rheumatology Calculators · Updated 4/19/2026

SLEDAI-2K-style weighted lupus activity sum (0–105).

Rheumatology Calculators · Updated 4/19/2026