Accuracy of ICD-9 codes in identifying patients with peptic ulcer and gastrointestinal hemorrhage in the regional healthcare administrative database of Umbria

by Orso, Massimiliano, Abraha, Iosief, Mengoni, Anna, Taborchi, Fabrizio, De Giorgi, Marcello, Franchini, David, Eusebi, Paolo, Heymann, Anna Julia, Montedori, Alessandro, Ambrosio, Giuseppe, Cozzolino, Francesco
Published in PLoS One (2020)

Validity of cerebrovascular ICD-9-CM codes in healthcare administrative databases. The Umbria Data-Value Project

by Orso, Massimiliano, Cozzolino, Francesco, Amici, Serena, De Giorgi, Marcello, Franchini, David, Eusebi, Paolo, Heymann, Anna Julia, Lombardo, Guido, Mengoni, Anna, Montedori, Alessandro, Ambrosio, Giuseppe, Abraha, Iosief
Published in PLoS One (2020)

Validity of ICD-9-CM codes for breast, lung and colorectal cancers in three Italian administrative healthcare databases: a diagnostic accuracy study protocol

by Abraha, Iosief, Serraino, Diego, Giovannini, Gianni, Stracci, Fabrizio, Casucci, Paola, Alessandrini, Giuliana, Bidoli, Ettore, Chiari, Rita, Cirocchi, Roberto, De Giorgi, Marcello, Franchini, David, Vitale, Maria Francesca, Fusco, Mario, Montedori, Alessandro
Published in BMJ Open (2016)

Accuracy of lung cancer ICD-9-CM codes in Umbria, Napoli 3 Sud and Friuli Venezia Giulia administrative healthcare databases: a diagnostic accuracy study

by Montedori, Alessandro, Bidoli, Ettore, Serraino, Diego, Fusco, Mario, Giovannini, Gianni, Casucci, Paola, Franchini, David, Granata, Annalisa, Ciullo, Valerio, Vitale, Maria Francesca, Gobbato, Michele, Chiari, Rita, Cozzolino, Francesco, Orso, Massimiliano, Orlandi, Walter, Abraha, Iosief
Published in BMJ Open (2018)