ICD-11 came into effect in 2022, but countries are adopting it at different paces. Learn how the transition is progressing, why ICD-10 is still used, and how to navigate between the two classifications.
Is ICD-11 Already in Use?
Yes. ICD-11 officially came into effect on January 1, 2022, but it hasn't replaced ICD-10 everywhere.
Many countries still use ICD-10 or a national adaptation while preparing for the transition. For example, Germany uses ICD-10-GM, while the United States uses ICD-10-CM.
WHO guidance on ICD-11 ↗
How Do I Find the ICD-11 Equivalent of an ICD-10 Code?
Looking for a corresponding code in ICD-11? We've organized mappings for ICD-10 codes F00–F99 and the closest ICD-10 matches for categories in ICD-11 Chapter 06.
Because the classifications differ, not every category has a direct equivalent.
Explore code mappings →
Why Is ICD-10 Still Used?
Switching to ICD-11 requires countries to update clinical systems, medical records, reporting, and billing procedures. Until these changes are in place, many healthcare systems continue to rely on ICD-10.
The transition also involves more than changing codes. Some diagnoses have been reorganized, combined, or redefined, making direct comparisons between the classifications more complex.