D.Jim BriggsDr. Mohamed Bader El-DinDr. Elisavet Andrikopoulou2026-06-032026-06-03https://dspace.academy.edu.ly/handle/123456789/2157Its calculation is based on 109 ICD-10 diagnosis codes related to frailty from electronic health records. HFRS tool is used to identify patients with characteristics of frailty and predict poor outcomes including long length of stay, in-hospital mortality, and readmission. Also, the advantage of the HFRS tool is that it uses hospital routine administrative data; thus, it can be implemented in most hospital information systems at low cost, quick, easy to use, and without additional burden on clinical staff.Frailty is a syndrome characterised by reduced strength, physiological function and endurance, which increases an individual’s risk of dependency and death. It is associated with an increased risk of adverse health outcomes for patients in hospital, including longer length of stay (LOS), in-hospital mortality, and readmission. The Hospital Frailty Risk Score (HFRS) is a frailty assessment tool which was developed and validated in secondary care within the UK National Health Service in 2018 for older people (>75 years) with high hospital resource use.identify factors influencing its power to identify adverse outcomes