Tools of Utilization and Cost in Healthcare R package touch version 0.1-7 R implementation of the software tools developed in the H-CUP (Healthcare Cost and Utilization Project) <https://hcup-us.ahrq.gov> and AHRQ (Agency for Healthcare Research and Quality) <https://www.ahrq.gov>. It currently contains functions for mapping ICD-9 codes to the AHRQ comorbidity measures and 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). Software Depends: R (>= 3.2.0) Imports: Rcpp LinkingTo: Rcpp Wenjie Wang <wang@wwenjie.org> Comprehensive R Archive Network (CRAN) Wenjie Wang [aut, cre] (ORCID: <https://orcid.org/0000-0003-0363-3180>), Yan Li [aut], Jun Yan [aut] (ORCID: <https://orcid.org/0000-0003-4401-7296>) GPL (>= 3) 2025-11-27 application/tgz https://CRAN.R-project.org/package=touch doi:10.32614/CRAN.package.touch