H46 is the ICD-10 code for Optic neuritis. It is a three-character category that is not subdivided further. It belongs to the block H46–H48 (Disorders of optic nerve and visual pathways) in Chapter VII, Diseases of the eye and adnexa.
- Code type
- Category (3 characters)
- Chapter
- VII · H00–H59
- Classification
- WHO ICD-10, 2019 version
What H46 includes
Conditions and terms that are coded here.
- Optic
- neuropathy, except ischaemic
- papillitis
- Retrobulbar neuritis NOS
What H46 excludes
Conditions that look similar but belong under another code.
H46 in national editions
Countries report with their own edition of ICD-10. Most keep the WHO code and add more specific codes beneath it.
H46Synsnervebetennelse
DH46Inflammationer i synsnerve
- DH469Inflammation i synsnerve UNS
H46Näköhermon tulehdus
H46Neuritis nervi optici
H46Névrite optique
H46neuritis optica
Listed through more specific codes:
- H46.2Nutritional optic neuropathy
- H46.3Toxic optic neuropathy
- H46.8Other optic neuritis
- H46.9Unspecified optic neuritis
Based on the World Health Organization’s International Statistical Classification of Diseases and Related Health Problems, 10th revision (ICD-10), 2019 version, and the national editions published by each country’s health authority. This page is a reference, not coding advice; follow your national coding rules when you report.
Look up another code
Stop looking codes up by hand
Docdemic listens to the consultation, writes the note and suggests the diagnosis and procedure codes that fit it, each one checked against your country’s official code list.
Try Docdemic free