icd9IsE

icd9IsN

icd9IsV

is
a character vector or factor 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


For each code, return <code>TRUE</code> if numric or <code>FALSE</code> if a
  V or E code.


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.

Jack O Wasey

Tools for Working with ICD-9 Codes, and Finding Comorbidities

icd9IsN function

<ul>
<li> <code>icd9IsV</code>: are the given codes V type? </li>
<li> <code>icd9IsE</code>: are the given codes E type?
</li>
</ul>

icd9IsN: do codes belong to numeric, V or E classes?

Description

Usage

Arguments

Value

Functions