Depending on if a phecode was ever converted to a number or not it can show up in a million different formats. This standardizes everything to a 6 digits number.
normalize_phecodes(codes)
| codes | A vector of phecodes in whatever format your heart desires. E.g.
|
|---|
A vector of 0-padded phecodes.
#> [1] "008.00" "008.10" "009.20" "023.40"