2026 ICD-10-CM Diagnosis Code H47.521Disorders of visual pathways in (due to) neoplasm, right side

ICD-10-CM Codes›H00–H59›H46-H47›H47

ICD-10-CM H47.521
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

H47.521 is a billable ICD-10-CM diagnosis code for disorders of visual pathways in (due to) neoplasm, right side. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026). In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Conditions due to neoplasm or the treatment of neoplasm and Neuro-ophthalmology.

Code Identity

ICD-10-CM Code
H47.521
Billable Status
Yes — Valid for Submission
Code Describes
Disorders of visual pathways in (due to) neoplasm, right side
Short Description
Disord of visual pathways in (due to) neoplasm, right side
Parent Code
H47.52
Disorders of visual pathways in (due to) neoplasm

Code Classification

ChapterH00–H59Diseases of the eye and adnexa
SectionH46-H47Disorders of optic nerve and visual pathways
CategoryH47Other disorders of optic [2nd] nerve and visual pathways
This CodeH47.521Disorders of visual pathways in (due to) neoplasm, right side

Clinical ClassificationClinical

AHRQ’s CCSR groups this code into broader clinical categories.

CCSR NEO074
Conditions due to neoplasm or the treatment of neoplasm
Default principal diagnosis: inpatient Yes · outpatient Yes
CCSR EYE006
Neuro-ophthalmology
Default principal diagnosis: inpatient No · outpatient No

Patient EducationClinical

Vision Impairment and Blindness

Vision impairment is the loss of vision. It includes blindness, which means that you have lost all or most of your sight. It also includes low vision, which means you have some vision, but the vision loss makes it hard to do everyday activities. You may have trouble reading, shopping, cooking, writing, and watching TV.

The full article covers:

  • What is vision impairment?
  • What causes vision impairment?
  • How is vision impairment diagnosed?
  • What are the types of low vision?
  • What are the treatments for low vision?
  • How can I make the most of my remaining sight?
  • Can vision impairment be prevented?

Read the full article at MedlinePlus

Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.

Convert H47.521 to ICD-9-CMHistory

The closest ICD-9-CM equivalents under the General Equivalence Mappings.

ICD-9-CM
377.61 Vis path dis w neoplasms
Approximate The match is approximate rather than exact.

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2025No changes
FY 2026CurrentCurrent code set, no changesEffective October 1, 2025 through September 30, 2026.

Questions About H47.521Overview

Is H47.521 (Disorders of visual pathways in (due to) neoplasm) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report disorders of visual pathways in (due to) neoplasm, right side on HIPAA-covered claims from October 1, 2025 through September 30, 2026.

What is the ICD-9 equivalent of H47.521?

Under the General Equivalence Mappings, disorders of visual pathways in (due to) neoplasm, right side converts to ICD-9-CM 377.61 (vis path dis w neoplasms). The mapping is approximate, so confirm the match fits the documentation.

Footnotes

[1] Chronic - a chronic condition code indicates a condition lasting 12 months or longer and its effect on the patient based on one or both of the following criteria:

  • The condition results in the need for ongoing intervention with medical products,treatment, services, and special equipment
  • The condition places limitations on self-care, independent living, and social interactions.