9B01

The ICD-11 code for disorders of the efferent pupillary system is 9B01. The full clinical description is "Disorders of the efferent pupillary system".

ICD-11 code 9B01 represents “Disorders of the efferent pupillary system”. It is classified under Chapter 9: Diseases of the Visual System.

9B01 is in Chapter 9: Diseases of the Visual System (codes 9A00-9E1Z).

There is no direct ICD-10 mapping available for 9B01 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.

9B01 has 10 child codes, including: 9B01.0 (Physiologic anisocoria), 9B01.1 (Parasympathoparetic pupils), 9B01.2 (Pharmacologic inhibition of the parasympathetic pathway), 9B01.3 (Iris sphincter disorders), and 6 more.