9C40

The ICD-11 code for disorder of the optic nerve is 9C40. The full clinical description is "Disorder of the optic nerve".

ICD-11 code 9C40 represents “Disorder of the optic nerve”. It is classified under Chapter 9: Diseases of the Visual System.

9C40 is in Chapter 9: Diseases of the Visual System (codes 9A00-9E1Z).

There is no direct ICD-10 mapping available for 9C40 in the WHO crosswalk tables. This may mean the concept is classified differently in ICD-10. Use the ICD-11 to ICD-10 converter to search for related codes.

ICD-11 is the latest revision of the WHO's International Classification of Diseases, succeeding ICD-10. Key differences include: a fully digital-first design, new chapters for sleep-wake disorders, sexual health, and traditional medicine, improved coding for rare diseases, and better integration with electronic health records through extension codes.

9C40 has 14 child codes, including: 9C40.0 (Infectious optic neuropathy), 9C40.1 (Optic neuritis), 9C40.2 (Neuroretinitis), 9C40.3 (Perineuritis of optic nerve), and 10 more.