stopIfInvalidIcd9

warnIfInvalidIcd9

is a character vector of ICD-9 codes. If fewer than five characters is
given in a code, then the digits are greedily assigned to hundreds, then
tens, then units, before the decimal parts. E.g. "10" becomes "010", not
"0010"

icd9

single logical value which determines whether the ICD-9 code provided is in short (TRUE) or decimal (FALSE) form.

isShort

In the case of warning, execution continues, and the logical
  vector containing the *invalid* codes is returned invisibly. Returning the
  invalids for consistency with the name of the function. The warn version of
  this function only uses one call to check validity, making execution as
  fast as possible.

error

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.

stopIfInvalidIcd9: warn or stop with invalid ICD-9 codes

Description

Usage

Arguments

See Also