VALIDITY Neuropathy disability score (NDS) and neuropathic impairment score in the lower limbs (NIS‐LL) The NDS can be used to assess the signs of neuropathy byitems for both sides. Download PDF. Purpose/Objectives: To describe the psychometric properties, clinical significance, and utility of the Total Neuropathy Score (TNS), a composite Purpose/Objectives: To describe the psychometric properties, clinical significance, and utility of the Total Neuropathy Score (TNS), a composite measurement t