children: Get children of ICD codes

Description Usage Arguments Value Methods (by class) See Also Examples

View source: R/children.R

Description

Expand ICD codes to all possible sub-codes, optionally limiting to those codes which are defined or billable (leaf nodes).

Usage

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children(x, ...)

## S3 method for class 'character'
children(x, ...)

## S3 method for class 'icd9cm'
children(x, short_code = guess_short(x),
  defined = TRUE, billable = FALSE, ...)

## S3 method for class 'icd9'
children(x, short_code = guess_short(x), defined = TRUE,
  billable = FALSE, ...)

## S3 method for class 'icd10'
children(x, short_code = guess_short(x), defined,
  billable = FALSE, ...)

## S3 method for class 'icd10cm'
children(x, short_code = guess_short(x), defined,
  billable = FALSE, ...)

## S3 method for class 'icd10who'
children(x, short_code = guess_short(x), defined,
  billable = NULL, leaf = NULL, ...)

Arguments

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 (TRUE) or decimal (FALSE) form. Where reasonable, this is guessed from the input data.

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.

Value

Returns a vector of ICD codes, with class of character and the class of the identified or specified ICD code, e.g. icd9

Methods (by class)

See Also

Other ICD-9 ranges: condense, expand_range

Examples

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# 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)

# guess it was ICD-9 and a short, not decimal code
children("0032")

# empty because 102.01 is not meaningful
children("10201", short_code = TRUE, defined = TRUE)
x <- children("003", short_code = TRUE, defined = TRUE)
explain_code(x, condense = FALSE, short_code = TRUE)

children(short_code = FALSE, "100.0")
children(short_code = FALSE, "100.00")
children(short_code = FALSE, "2.34")

jackwasey/icd documentation built on Sept. 9, 2019, 6:53 a.m.