comment = "Multiple great pull requests"),
comment = "backport of R_user-dir for R version >4. ORCID = 0000-0001-9754-0393"),
implementation of AHRQ Clinical Classifications. Risk scores include
those of Charlson and van Walraven.  US Clinical Modification, Word
Health Organization, Belgian and French ICD-10 codes are supported,
Patrick McCormick [ctb] (Multiple great pull requests),
Michel Lang [aut] (backport of R_user-dir for R version >4. ORCID =

Title: International Classifcation of Diseases (ICD) Data
person("Jack O. Wasey", role = c("aut", "cre", "cph"), email = "jack@jackwasey.com")
Description: Data from the United States Center for Medicare and Medicaid
Services (CMS) is included in this package. There are ICD-9 and ICD-10
diagnostic and procedure codes, and lists of the chapter and sub-chapter
headings and the ranges of ICD codes they encompass. There are also two
sample datasets. These data are used by the 'icd' package for finding

Title: tools for working with ICD-9 codes, and finding comorbidities
Description: This package allows accurate manipulation, validation and
comparison of ICD-9 (clinical modification) codes. Although ICD-9 codes
appear numeric, this is not the case, since trailing zeroes, and a mixture
of decimal and non-decimal "short" format codes exist. Tools to map ICD-9
codes to co-morbidities are also provided, with one public domain mapping
(programmatically derived from SAS code) from the AHRQ included.
Authors@R: person(given="Jack O.", family="Wasey", role=c("aut", "cre"),
Suggests: testthat, roxygen2, devtools, knitr, microbenchmark

comparison of ICD-9-CM (clinical modification) codes. Although ICD-9 codes
codes to co-morbidities are also provided, with mappings from Quan (Deyo
and Elixhauser versions), Elixhauser and AHRQ included.

Title: Tools for Working with ICD-9 Codes, and Finding Comorbidities
Description: This package allows accurate manipulation, conversion, validation
and comparison of ICD-9-CM (clinical modification) codes. Although ICD-9
codes appear numeric, this is not the case, since trailing zeroes, and a
mixture of decimal and non-decimal "short" format codes exist. Tools to map
ICD-9 codes to co-morbidities are also provided, with mappings from Quan
(Deyo and Elixhauser versions), Elixhauser and AHRQ included.
Suggests: testthat, roxygen2, devtools, knitr, microbenchmark, XML,