icd9IsA

const char* of choices of first character to match


Current returns a std::vector<bool> which is not thread safe,
  or particularly fast, although it is memory efficient in the standard
  borked implementation. As of icd9 version 1.2, this is not called by
  threaded code, but this could change, so beware! ASCII spaces are trimmed
  from the start of the string before testing, but no other whitesapce
</bool>

internal

Obsolete: 'icd9' is replaced by CRAN package 'icd'.
Calculate comorbidities, Charlson scores, 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. Any
other mapping of codes, such as ICD-10, to comorbidities can be used.

icd9IsA: test whether elements of vector begin with V, E (or any other character)

Description

Usage

Arguments