[Documentation in the surgical department: mandatory key systems]

Decision to use a particular key system depends mainly on whether it it used regularly and whether it is possible to translate it into another key system. A study is being made on the translation of the surgical therapy key system VESKA and others. The ICD and Immich systems are among the diagnostic key systems available. Oncology relies mainly upon the TNM system developed by UICC; the key for tumour localisation is used and the most important data can be recorded on the basic investigation sheet.