Select ICD-9 and ICD-10 code mapping data from the icd R package

These R data files were downloaded from the icd R package GitHub page at https://github.com/jackwasey/icd. They link International Classification of Diseases (ICD; 9th and 10th revisions) diagnosis codes to the Agency for Healthcare Research and Quality’s Clinical Classifications Software (CCS) algorithm, enabling interpretable analysis of hospitalization records by grouping ICD codes. This package is no longer available on CRAN, but this data can be easily loaded into R using: remotes::install_github(\"jackwasey/icd\") library(icd) data(\"icd9_map_single_ccs\") data(\"icd10_map_ccs\") However, data cannot be loaded into secure systems, such as Harvard University Research Computing and Data Services' Regulated Data (ReD) environment, in this way.