R/data.R
get_icd_history.Rd
Returns a data frame with ICD transition history, consisting of year, ICD code and label. Optional arguments allow selection of entries by year or ICD code. This is beneficial because the entire history is relatively large and rarely required in full.
get_icd_history(year = NULL, icd3 = NULL)
year | Year or years to get (numeric or character vector) |
---|---|
icd3 | (optional) ICD codes to select (regular expression, matched exactly using grep) |
data.frame, see icd_hist