# Metadata Processing for the German Modification of the ICD-10 Coding System

## Documentation for package ‘ICD10gm’ version 1.0.4

- DESCRIPTION file.
- User guides, package vignettes and other documentation.

## Help Pages

get_icd_history | Returns a data frame with ICD transition history, consisting of year, ICD code and label. Optional arguments allow selection of entries by year or ICD code. This is beneficial because the entire history is relatively large and rarely required in full.
get_icd_labels | Returns a data frame with ICD metadata, consisting of year, ICD code and label. Optional arguments allow selection of entries by year, code or label. This is beneficial because the entire history is relatively large and rarely required in full.
icd_expand | Expand list of ICD codes to include all possible subcodes
icd_history | Historize a list of ICD codes to cover the specified years
icd_meta_blocks | Metadata for the ICD-10-GM code blocks
icd_meta_chapters | Metadata for the ICD-10-GM chapters
icd_meta_codes | Metadata for all ICD-10-GM codes
icd_meta_transition | Transition between ICD-10-GM versions
icd_parse | Extract all ICD codes from a character vector
icd_showchanges | Show all changes in ICD history relating to the 3-digit codes contained in the data.frame icd_in. The output of icd_expand can be passed directly to this function to display relevant changes.
icd_showchanges_icd3 | Show all changes in ICD history relating to the 3-digit codes contained in a given vector icd
is_icd_code | Test whether a string is a valid ICD code