get_charlson_codes: Get Charlson Codes

In medicalcoder: A Unified and Longitudinally Aware Framework for ICD-Based Comorbidity Assessment

Get Charlson Codes

Description

Retrieve a copy of internal lookup tables for the ICD codes used in assessing Charlson comorbidities.

Usage

get_charlson_codes()

Value

A data.frame with the following columns:

• icdv: Integer vector indicating if the code is from ICD-9 or ICD-10

• dx: Integer vector. 1 if the code is a diagnostic, (ICD-9-CM, ICD-10-CM, WHO, CDC Mortality), or 0 if the code is procedural (ICD-9-PCS, ICD-10-PCS)

• full_code: Character vector with the ICD code and any relevant decimal point

• code: Character vector with the compact ICD code

• condition: Character vector of the conditions

• ⁠charlson_\<variant\>⁠: Integer vector indicating if the code is part of the \<variant\> of the Charlson comorbidities.

See Also

• get_charlson_index_scores() for a lookup table of the by comorbidity index scores.

• get_icd_codes() for the lookup table of all ICD codes.

• get_pccc_codes() for the lookup table of ICD codes used for the PCCC.

• get_elixhauser_codes() for the lookup table of ICD codes used for the Elixhauser comorbidities.

• comorbidities() for applying comorbidity algorithms to a data set.

Examples

head(get_charlson_codes())
str(get_charlson_codes())

medicalcoder documentation built on Feb. 22, 2026, 5:08 p.m.