Expand ICD codes to all possible sub-codes, optionally limiting to those codes which are defined or billable (leaf nodes).
children(x, ...) # S3 method for character children(x, ...) # S3 method for icd9cm children(x, short_code = guess_short(x), defined = TRUE, billable = FALSE, ...) # S3 method for icd9 children(x, short_code = guess_short(x), defined = TRUE, billable = FALSE, ...) # S3 method for icd10 children(x, short_code = guess_short(x), defined, billable = FALSE, ...) # S3 method for icd10cm children(x, short_code = guess_short(x), defined, billable = FALSE, ...) # S3 method for icd10who children( x, short_code = guess_short(x), defined, billable = NULL, leaf = NULL, ... )
| x | data, e.g. character vector of ICD codes. |
|---|---|
| ... | arguments passed on to other functions |
| short_code | single logical value which determines whether the ICD-9
code provided is in short ( |
| defined | single logical value, whether returned codes should only include those which have definitions. Definition is based on the ICD version being used, e.g. ICD-9-CM, the WHO version of ICD-10, or other. |
| billable | single logical value, identical to 'leaf'. Leaf is preferred as most adaptations of WHO ICD codes are not oriented around money. |
| leaf | single logical value, whether to limit return codes also by whether they are billable, i.e. leaf nodes. This is really only designed for use with ICD-9-CM, ICD-10-CM etc, since the WHO versions are not designed for billing, but for public health and death reporting. |
Returns a vector of ICD codes, with class of character and the
class of the identified or specified ICD code, e.g. icd9
character: Get child codes, guessing ICD version and short
versus decimal format
icd9cm: Get children of ICD-9-CM codes
icd9: Get children of ICD-9 codes, based on the super-set
ICD-9-CM at present
icd10: Get children of ICD-10 codes (warns because this
only applies to ICD-10-CM for now).
icd10cm: Get children of ICD-10-CM codes
icd10who: Get children of ICD-10-CM codes
Other ICD-9 ranges:
condense(),
expand_range()
# N.b. magrittr not required by icd library(magrittr, warn.conflicts = FALSE, quietly = TRUE) # no children other than self children("10201", short_code = TRUE, defined = FALSE)#> [1] "10201"# guess it was ICD-9 and a short, not decimal code children("0032")#> [1] "0032" "00320" "00321" "00322" "00323" "00324" "00329"# empty because 102.01 is not meaningful children("10201", short_code = TRUE, defined = TRUE)#> character(0)x <- children("003", short_code = TRUE, defined = TRUE) explain_code(x, condense = FALSE, short_code = TRUE)#> [1] "Other salmonella infections" #> [2] "Salmonella gastroenteritis" #> [3] "Salmonella septicemia" #> [4] "Localized salmonella infections" #> [5] "Localized salmonella infection, unspecified" #> [6] "Salmonella meningitis" #> [7] "Salmonella pneumonia" #> [8] "Salmonella arthritis" #> [9] "Salmonella osteomyelitis" #> [10] "Other localized salmonella infections" #> [11] "Other specified salmonella infections" #> [12] "Salmonella infection, unspecified"children(short_code = FALSE, "100.0")#> [1] "100.0"children(short_code = FALSE, "100.00")#> character(0)children(short_code = FALSE, "2.34")#> character(0)