parseIcd9Descriptions

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

icd9path

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

save

Absolute path in which to save parsed data

path

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.

internal

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.

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

Description

Usage

Arguments

Value

Details