ICD-10 Code H47.51 – Disorders of Visual Pathways in (Due to) Inflammatory Disorders (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H47.51 – Disorders of visual pathways in (due to) inflammatory disorders
What it is
This code identifies a disorder affecting the visual pathways that is caused by an inflammatory condition. Use it when documentation links visual pathway dysfunction to inflammation rather than trauma, compression, or degenerative disease.
Clinical signs
Clinical features vary; refer to documentation. Findings may include visual field loss, reduced visual acuity, or other evidence of optic pathway involvement, with a recorded inflammatory cause.
When to use this code
Use this code when the provider documents inflammation as the cause of a visual pathway disorder, such as inflammatory optic or visual pathway involvement. It also fits cases where imaging or specialist assessment supports inflammatory disease affecting the pathway. If the cause is unclear, check documentation before coding.
Do not use for
Do not use this code for visual pathway disorders due to trauma, neoplasm, or congenital conditions. If the record does not clearly support an inflammatory cause, do not assume it.
Coding tip
Link the code only to documentation that explicitly states an inflammatory etiology for the visual pathway disorder.