decimal form ICD-9 codes are not ambiguous if the leading zeroes
are dropped. Some short-form ICD-9 codes would not be ambiguous, e.g. "1"
but many would be problematic. This is the inverse of
icd9AddLeadingZeroesDecimal.
Invalid codes have no guaranteed result, and may give NA, or a (possibly valid) code in repsonse.
icd9DropLeadingZeroes(icd9, isShort)icd9DropLeadingZeroesDecimal(icd9Decimal)
icd9DropLeadingZeroesShort(icd9Short)
icd9DropLeadingZeroesMajor(major)
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".
character vector 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"
is a character vector 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"
character vector of ICD-9 codes with extra zeroes dropped from major part
Other ICD-9 convert: convert,
icd9DecimalToParts,
icd9MajMinToCode,
icd9MajMinToDecimal,
icd9MajMinToParts,
icd9MajMinToParts_list,
icd9MajMinToShort,
icd9PartsToDecimal,
icd9PartsToShort,
icd9ShortToParts;
icd9ChaptersToMap;
icd9LongToWide;
icd9WideToLong