Sorts lists of numeric only, V or E codes. Note that a simple numeric sort does not work for ICD-9 codes, since "162" > "1620", and also V codes precede E codes.
sort_icd(x, ...)# S3 method for default
sort_icd(x, short_code = guess_short(x), ...)
# S3 method for icd10
sort_icd(x, short_code = NULL, ...)
# S3 method for icd9
sort_icd(x, short_code = guess_short(x), ...)
icd_sort.default(...)
icd_sort.icd10(...)
icd_sort.icd9(...)
vector of ICD codes to sort
arguments passed on to other functions
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.
arguments passed on to other functions
arguments passed on to other functions
arguments passed on to other functions
sorted vector of ICD-9 codes. Numeric, then E codes, then V codes.
default: Guess whether ICD-9 or ICD-10 (or possibly sub-type in
the future) then sort based on that type. ICD-10 codes, note that setting
short is unnecessary and ignored.
icd10: Sort ICD-10 codes, note that setting short is
unnecessary and ignored.
icd9: sort ICD-9 codes respecting numeric, then 'V', then 'E'
codes, and accounting for leading zeroes. Will return a factor if a factor is given.
Future versions of icd will drop
the icd_ prefix. For example, charlson should be used in
favor of icd_charlson. To distinguish icd function calls,
consider using the prefix icd:: instead, e.g., icd::charlson.
Functions which specifically operate on either ICD-9 or ICD-10 codes or
their sub-types will retain the prefix. E.g.
icd9_comorbid_ahrq. icd specific classes also retain
the prefix, e.g., icd_wide_data.
Implementation used fast built-in sort, then shuffles the E codes to the end.