ICD-10 Code H46.11 – Retrobulbar neuritis, right eye (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H46.11 – Retrobulbar neuritis, right eye
What it is
H46.11 identifies inflammation or demyelination of the optic nerve behind the eye on the right side. It is used when the record specifies retrobulbar neuritis affecting the right eye.
Clinical signs
Typical findings include decreased visual acuity, pain with eye movement, and reduced color vision. An afferent pupillary defect or visual field loss may be documented; clinical features vary, so refer to documentation.
When to use this code
Use H46.11 when the provider documents retrobulbar neuritis, optic neuritis, or demyelinating optic neuropathy limited to the right eye. The note should clearly identify the right eye and support an active diagnosis, not just a history of prior neuritis.
If laterality is stated elsewhere in the record, make sure it matches the final assessment. When the documentation is unclear, check documentation before assigning this code.
Do not use for
Do not use H46.11 for optic neuritis of the left eye, bilateral disease, or unspecified laterality. Do not code it for non-inflammatory visual loss unless the provider specifically documents retrobulbar neuritis.
Coding tip
Always confirm laterality in the assessment, because right-eye specificity is required for H46.11.