ICD-10 Code H47.632 – Disorders of Visual Cortex in (Due to) Neoplasm, Left Side of Brain (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H47.632 – Disorders of visual cortex in (due to) neoplasm, left side of brain
What it is
This code identifies a visual cortex disorder caused by a neoplasm in the left side of the brain. Use it when documentation links the visual disturbance to a left-sided brain tumor or mass effect.
Clinical signs
Clinical features vary; refer to documentation. Commonly, you may see visual field loss, impaired visual processing, or other cortical visual deficits noted by neurology or ophthalmology.
When to use this code
Use this code when the record states that visual cortex dysfunction is due to a neoplasm on the left side of the brain. It fits cases where the tumor is the documented cause of the visual disorder. If the side or cause is not clearly stated, check documentation before assigning the code.
Do not use for
Do not use this code for general visual loss without a documented cortical cause. It is also not for neoplasms without a linked visual cortex disorder.
Coding tip
Code the cause and the neurologic effect only when the provider clearly connects them in the chart.