icd9 (version 0.5)

parseIcd9Descriptions: read the ICD-9-CM description data as provided by the Center for Medicaid Services.

Description

ICD9-CM data unfortunately has no comma separation, so have to pre-process. Note that this canonical data doesn't specify non-diagnostic higher-level codes, just the specific diagnostic 'child' codes.

Usage

parseIcd9Descriptions(icd9path = system.file("extdata",
  "CMS32_DESC_LONG_DX.txt", package = "icd9"), save = FALSE,
  path = "~/icd9/data")

Arguments

icd9path

path of the source data which is in /extddata in the installed package, but would be in inst/extdata in development tree.

save

logical whether to attempt to save output in package source tree data directory

path

Absolute path in which to save parsed data

Value

• invisibly return the result

Details

ideally would get ICD9-CM data zip directly from CMS web page, and extract, but the built-in unzip only extracts the first file in a zip.