Ingenix Coding Lab: Understanding E/m CodingSt. Anthony Publishing · First published 2003Open the Tome
ICD-10-CM Clinical Documentation Improvement Desk ReferenceIngenix · First published 2012Open the Tome
ICD-9-CM Volumes 1,2 &3 and HCPCS Level 11 2012 EducationalINGENIX · First published 2012Open the Tome
ICD-9-CM Professional for Hospitals, Volumes 1, 2, & 3, Fullsize VersionIngenix · First published 2005Open the Tome
