> ## Documentation Index
> Fetch the complete documentation index at: https://docs.corti.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# CHOP

> Schweizerische Operationsklassifikation. The Swiss standard for procedure coding

**CHOP (Schweizerische Operationsklassifikation).** Published by the Swiss Federal Statistical Office (BFS). The Swiss procedure classification, used alongside the Swiss edition of ICD-10-GM for inpatient episode coding across Swiss hospitals.

<Note>
  This coding system is in early alpha. Access is available to select partners. [Contact us](https://www.corti.ai/contact-us?products=medical-coding,api) to discuss your use case and request access.
</Note>