International Classifcation of Diseases (ICD) Data
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
comorbidities.

tools for working with ICD-9 codes, and finding comorbidities
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.
person(given="Jack O.", family="Wasey", role=c("aut", "cre"),
email=c("jack@jackwasey.com"))
testthat, roxygen2, devtools, knitr, microbenchmark

This package allows accurate manipulation, 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.

Tools for Working with ICD-9 Codes, and Finding Comorbidities
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.
testthat, roxygen2, devtools, knitr, microbenchmark, XML,
magrittr

Calculate comorbidities, and perform fast and accurate
validation, conversion, manipulation, filtering and comparison of ICD-9-CM
(clinical modification) codes. ICD-9 codes appear numeric but leading and
trailing zeroes, and both decimal and non-decimal "short" format codes
exist. The package enables a work flow from raw lists of ICD-9 codes from
hospital billing databases to comorbidities. ICD-9 to comorbidity mappings
from Quan (Deyo and Elixhauser versions), Elixhauser and AHRQ included.
person(given = "Jack O.", family = "Wasey",
role = c("aut", "cre", "cph"),
email = c("jack@jackwasey.com"))
testthat, knitr, microbenchmark, XML, magrittr, memoise,
profr, ggplot2