To cite package ‘ICD10gm’ in publications use:

Donnachie E (2023). ICD10gm: Metadata Processing for the German Modification of the ICD-10 Coding System. R package version 1.2.5, https://github.com/edonnachie/icd10gm.

Corresponding BibTeX entry:

  @Manual{,
    title = {ICD10gm: Metadata Processing for the German Modification
      of the ICD-10 Coding System},
    author = {Ewan Donnachie},
    year = {2023},
    note = {R package version 1.2.5},
    url = {https://github.com/edonnachie/icd10gm},
  }