Skip to contents

A wrapper function to perform basic cleaning of ICD-9 dataframes

Source: R/clean_icd9_data.R
clean_icd9_data.Rd

Across 1979-1998, MCOD data have minor inconsistencies. This wrapper function renames nature of injury columns, pads UCOD codes with no sub-codes, prefixes an E to external cause of injury codes and an N to nature of injury codes, and trims unnecessary characters and whitespace.

Usage

clean_icd9_data(icd9_df)

Arguments

icd9_df

an ICD-9 dataframe

Value

dataframe

Examples

df <- data.frame(
    ucod = c("8001", "4321"),
    record_1 = c("8001", "4321"),
    rniflag_1 = c(0, 1)
)
clean_icd9_data(df)
#>    ucod record_1 rnifla_1
#> 1 E8001     8001        0
#> 2  4321     4321        1