icd9 (version 0.5)

icd9GetMajor: extract major part from short or decimal ICD-9 code

Description

Simply extracts parts, then returns only the major part in a character vector

Usage

icd9GetMajor(icd9, isShort, invalidAction = icd9InvalidActions)
icd9DecimalToMajor(icd9Decimal, invalidAction = icd9InvalidActions)
icd9ShortToMajor(icd9Short, invalidAction = icd9InvalidActions)

Arguments

icd9

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"

isShort

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

invalidAction

character string (unit length) containing one of: "ignore", "silent", "warn", "stop"

- ignore 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

icd9Decimal

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"

icd9Short

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"

Value

• character vector