icd9ValidMajor

character vector of 'major' part of ICD-9 codes, i.e. that part
which falls before the decimal point, in decimal notation. (In 5 digit
notation, the 'major' part is be the first three characters (with leading
zeroes), and includes V or E prefix. xyz

major

validation for just the 'major' part of an ICD-9 code. This can in fact be provided as a numeric, since there is no ambiguity. Numeric-only codes should be one to three digitis, V codes are followed by one or two digits, and E codes always by three digits between 800 and 999.

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.

icd9ValidMajor: validate a major part

Description

Usage

Arguments

See Also