medicalrisk: Medical Risk and Comorbidity Tools for ICD-9-CM Data

Generates risk estimates and comorbidity flags from ICD-9-CM codes available in administrative medical datasets. The package supports the Charlson Comorbidity Index, the Elixhauser Comorbidity classification, the Revised Cardiac Risk Index, and the Risk Stratification Index. Methods are table-based, fast, and use the plyr package, so parallelization is possible for large jobs. Also includes a sample of real ICD-9 data for 100 patients from a publicly available dataset.

Version: 1.1
Depends: R (≥ 2.11.0)
Imports: plyr (≥ 1.5), reshape2, hash
Suggests: testthat, knitr
Published: 2015-01-06
Author: Patrick McCormick [aut, cre], Thomas Joseph [aut]
Maintainer: Patrick McCormick <patrick.mccormick at>
License: GPL-3
NeedsCompilation: no
Materials: README
CRAN checks: medicalrisk results


Reference manual: medicalrisk.pdf
Vignettes: medicalrisk: Calculating risk and comorbidities from ICD-9-CM codes
Package source: medicalrisk_1.1.tar.gz
Windows binaries: r-devel:, r-release:, r-oldrel:
OS X Snow Leopard binaries: r-release: medicalrisk_1.1.tgz, r-oldrel: medicalrisk_1.1.tgz
OS X Mavericks binaries: r-release: medicalrisk_1.1.tgz