get_defined

input vector or factor, possibly with an ICD class

logical value, whether short-form ICD code

short_code

single logical value, identical to 'leaf'. Leaf is preferred
as most adaptations of WHO ICD codes are not oriented around money.

billable

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.

leaf

Return only those codes which are heading or leaf (billable), specifying
whether codes are all short-form or all decimal-form

Calculate comorbidities, medical risk scores, and
work very quickly and precisely with ICD-9 and ICD-10 codes. This
package enables a work flow from raw tables of ICD codes in hospital
databases to comorbidities. ICD-9 and ICD-10 comorbidity mappings from
Quan (Deyo and Elixhauser versions), Elixhauser and AHRQ included.
Common ambiguities and code formats are handled. Comorbidity
computation includes Hierarchical Condition Codes, and an
implementation of AHRQ Clinical Classifications. Risk scores include
those of Charlson and van Walraven.  US Clinical Modification, Word
Health Organization, Belgian and French ICD-10 codes are supported,
most of which are downloaded on demand.

Jack O Wasey

Comorbidity Calculations and Tools for ICD-9 and ICD-10 Codes

get_defined: Select only defined ICD codes

Description

Usage

Arguments