NDI · 10 items · Max 50 · Neck Pain & Disability IndexPatient GuideEnter Total NDI Score (0–50)Calculate Disability %Neck Function ProfileGuidelines & EvidenceWhen to UseHow it WorksClinical PearlsNext StepsThe EvidenceOrigins & HistorySection 1When to UseSection 2How it WorksSection 3Clinical PearlsSection 4Next StepsSection 5The EvidenceSection 6Origins & HistoryVerifiedLast Review: 2026When to UseLast Comprehensive Review: 2026