icd9DecimalToMajor

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"

icd9Decimal

character string (unit length) containing one of:
  "ignore", "silent", "warn", "stop"<p></p><p>  - <code>ignore</code> no check for validity of ICD-9 code is made implicitly.
  This is the fastest option. If the function call is explicitly to check
  validity, e</p>

invalidAction

Simply extracts parts, then returns only the major part

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.

icd9DecimalToMajor: extract major part from decimal ICD-9 code

Description

Usage

Arguments

Value