This runs quite slowly. Used too rarely to be worth optimizing
now. This is used to build a master list of ICD-9 codes with their
respective chapters, sub-chapters, etc.. The querying of the web page to
get these is already done, and the results saved in the lists
icd9Chapters
etc which define ranges.
1 | icd9GetChapters(icd9, isShort = icd9GuessIsShort(icd9), verbose = FALSE)
|
icd9 |
is a character vector or factor 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. Where reasonable, this is guessed from the input data. |
verbose |
single logical value, defaults to |
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