The German procedure classification, known as Operationen- und Prozedurenschlüssel (OPS), serves as the official system for encoding operations, procedures, and general medical measures within the German healthcare system. Currently, OPS 2025 is the valid version. This comprehensive classification system is essential for healthcare providers, insurers, and regulatory bodies in Germany.
What is OPS Coding?
Ops Coding is a standardized method for classifying and coding medical procedures performed in Germany. Think of it as a universal language for healthcare procedures, ensuring consistent communication and data collection across the German medical landscape. The OPS classification is meticulously maintained and updated annually to reflect the evolving medical practices and technologies. The most current version is always valid for a calendar year, ensuring that the coding system remains up-to-date. Users are notified of any necessary corrections during the year through a dedicated newsletter.
Key Resources for OPS Coding
Navigating the OPS system is made easier with a range of online and downloadable resources provided by BfArM, the German Federal Institute for Drugs and Medical Devices.
Online OPS Code Search
For quick and efficient access to specific codes, an online OPS code search tool is available. This digital version is structured into manageable files and features an integrated search function. The extensive hyperlinking within the classification allows for seamless navigation between related codes. Furthermore, the “Ergänzende Informationen” section offers supplementary documents from the OPS preamble and appendix, providing additional context and guidance.
OPS Downloads
Recognizing the diverse needs of users, the OPS is offered in various downloadable formats, all available free of charge. By downloading these files, users agree to the terms of use established by BfArM. These download conditions are accessible as a PDF document for review before downloading any files.
Download conditions (PDF, 219 kB) (in German language)
Downloads OPS (in German language)
Coding Questions and FAQs
To support users in accurately applying OPS coding, BfArM provides dedicated resources for coding questions and frequently asked questions (FAQs).
Coding Questions: This section addresses specific queries related to the classification of operations and procedures. It’s important to consult the notes on coding questions to understand the context and guidance provided.
Notes on the quoding questions (in German language)
Coding questions OPS (in German language)
FAQ: The FAQ section answers general inquiries about OPS coding. For code-specific questions, users are directed to the coding questions resource mentioned above.
OPS Proposal Procedure and Structure
The OPS undergoes a rigorous annual proposal procedure led by BfArM to ensure its continuous improvement and relevance. This process allows for updates and modifications based on advancements in medical practice.
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Proposal procedure for OPS and ICD-10-GMProposal procedure
OPS is maintained and updated in an elaborate process. At present, this is based on a proposal procedure conducted annually under the lead management of BfArM.
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The OPS classification itself is structured into two main components:
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Tabular List: This is the core of the OPS, presenting a hierarchical list of codes along with essential supplementary information. The preface provides details on the encoding process and highlights significant changes from the previous OPS version. The appendix offers guidelines for calculating expenditure points for complex intensive care treatments.
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Alphabetical Index: This index serves as a comprehensive directory of operation and procedure designations, each linked to the corresponding OPS code. Since 2021, the Alphabetical Index is available in TXT(CSV) format.
Users should consult the preface of the OPS for detailed instructions on its application, while also adhering to sector-specific coding guidelines relevant to their practice.
Applications of OPS Coding
OPS coding extends beyond mere classification; it serves as a foundational element for critical aspects of the German healthcare system.
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OPS as the basis for G-DRG, EBM and quality reportsApplication areas
OPS forms an important basis for the G-DRG and PEPP case-based fixed sum systems. They are provided by InEK (Institute for the Hospital Remuneration System) on behalf of the self-governing partners of the German health care and are used in inpatient care. OPS is also used to encode operations and procedures in the outpatient sector for remuneration in accordance with the doctor’s fee schedule, the so called German Uniform Assessment Standard (EBM). Hospital quality reports are also based on OPS-encoded procedures.
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G-DRG and PEPP Systems: OPS is a cornerstone for the German Diagnosis Related Groups (G-DRG) and the prospective payment system for psychiatric and psychosomatic care (PEPP). These case-based fixed sum systems, managed by InEK, rely on OPS for inpatient care reimbursement.
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EBM (German Uniform Assessment Standard): In the outpatient sector, OPS codes are used for remuneration according to the EBM, the doctor’s fee schedule.
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Hospital Quality Reports: OPS-encoded procedures are also integral to the generation of hospital quality reports, contributing to transparency and quality assessment within the healthcare system.
OPS and its International Roots
The OPS is not developed in isolation. It is a German adaptation of the World Health Organization’s (WHO) International Classification of Procedures in Medicine (ICPM). The German version evolved from a translation of the extended Dutch version, ICPM-DE. Initially known as OPS-301, referencing § 301 SGB V, OPS has been tailored to meet the specific needs of the German healthcare system. Its continuous annual revision, in collaboration with German healthcare partners under BfArM’s leadership, ensures its ongoing relevance and accuracy.
ICHI as follower of ICPM on the WHO
ICHI browser on ICD-11 Maintenance Platform
Further Information and Resources
For those seeking deeper insights into OPS coding, additional resources are available:
Continuous development and improvement
By understanding OPS coding and utilizing the provided resources, healthcare professionals and stakeholders can effectively navigate the German healthcare system and ensure accurate and consistent reporting of medical procedures.
