ICD-10 Code H47.521 – Disorders of Visual Pathways in (Due to) Neoplasm, Right Side (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H47.521 – Disorders of visual pathways in (due to) neoplasm, right side
What it is
This code identifies a disorder of the visual pathways on the right side caused by a neoplasm. Use it when documentation links the visual pathway problem to a tumor or mass affecting the right side.
Clinical signs
Clinical features vary; refer to documentation. Commonly, records may describe visual field loss, reduced visual acuity, or other neurologic visual deficits tied to a right-sided lesion.
When to use this code
Use H47.521 when the provider documents a right-sided visual pathway disorder due to neoplasm, such as compression or infiltration by a tumor. You should also use it when the diagnosis is clearly stated in the assessment, problem list, or imaging correlation. If the side or cause is not documented, check documentation before coding.
Do not use for
Do not use this code for unspecified visual pathway disorders or for vision problems without a documented neoplastic cause. It is also not appropriate when the lesion is on the left side or when the record does not confirm laterality.
Coding tip
Confirm both laterality and the neoplastic cause in the chart before assigning H47.521.