Skip to content


Repository files navigation

R Package touch

CRAN_Status_Badge Build Status

The package touch (Tools of unilization and cost in healthcare) provides R implementation of the software tools developed in the H-CUP (Healthcare Cost and Utilization Project) and AHRQ (Agency for Healthcare Research and Quality).

It currently contains functions for

  • mapping ICD-9 codes to the AHRQ comorbidity measures
  • translating ICD-9 (resp. ICD-10) codes to ICD-10 (resp. ICD-9) codes based on GEM (General Equivalence Mappings) from CMS (Centers for Medicare and Medicaid Services).


You may install the released version from CRAN.



One may install the latest version under development as follows:

if (! require(remotes)) install.packages("remotes")
remotes::install_github("wenjie2wang/touch", upgrade = "never")


GNU General Public License (≥ 3)