clean_icd_9_cm {naaccr}

Clean ICD-9-CM codes

Description

Clean ICD-9-CM codes

Usage

clean_icd_9_cm(code, keep_unknown = FALSE)

Arguments

code

A character vector of ICD-9-CM codes.

keep_unknown

Replace values for "unknown" with NA?

Value

A character vector with leading and trailing whitespace removed. If keep_unknown is FALSE, blanks and the ICD-9-CM code for "unknown" ("00000") are replaced with NA.