Health Economics Review · 2014 · 33 citations · 23 references
23
Coding Algorithms for Defining Comorbidities in ICD-9-CM and ICD-10 Administrative Data
Hude Quan, Vijaya Sundararajan, Patricia Halfon et al. · Medical Care · 2005 · 10.2K citations
Josef S Smolen, R. B. M. Landewé, F. C. Breedveld et al. · Annals of the Rheumatic Diseases · 2010 · 410 citations · Full text