Fig. 3.
Detection of heart failure via related ICD codes (dark gray) and the additional detection through other search terms* (light gray), in inpatients with heart failure across the entire sampling period (years 2000–2015). The percentage of patients found via selective ICD code search increased in recent years, which might be explained by the foundation of the Comprehensive Heart Failure Center Würzburg in the year 2010, i.e., a facility devoted to the integration of research and care of patients with heart failure. *Executed via application of the automated algorithm AF1 (for details refer to “Methods”)