2026 ICD-10-CM Diagnosis Code H47.621Disorders of visual cortex in (due to) inflammatory disorders, right side of brain

ICD-10-CM Codes›H00–H59›H46-H47›H47

ICD-10-CM H47.621
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

H47.621 is a billable ICD-10-CM diagnosis code for disorders of visual cortex in (due to) inflammatory disorders, right side of brain. 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 Neuro-ophthalmology.

Code Identity

ICD-10-CM Code
H47.621
Billable Status
Yes — Valid for Submission
Code Describes
Disorders of visual cortex in (due to) inflammatory disorders, right side of brain
Short Description
Disord of visual cortex in inflam disord, r side of brain
Parent Code
H47.62
Disorders of visual cortex in (due to) inflammatory disorders

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 CodeH47.621Disorders of visual cortex in (due to) inflammatory disorders, right side of brain

Index to Diseases and InjuriesGuidance

Alphabetical index entries that point to this code.

External Cause of Injuries IndexGuidance

References for this code in the External Cause of Injuries Index.

    • Disorder(of)
      • visual
        • cortex
          • due to
            • inflammatory disorder
              • right brain

Clinical ClassificationClinical

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

CCSR EYE006
Neuro-ophthalmology
Default principal diagnosis: inpatient Yes · outpatient Yes

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 H47.621 to ICD-9-CMHistory

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

ICD-9-CM
377.73 Vis cortex dis w inflam
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 H47.621Overview

Is H47.621 a billable code?

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

What is the ICD-9 equivalent of H47.621?

Under the General Equivalence Mappings, disorders of visual cortex in (due to) inflammatory disorders, right side of brain converts to ICD-9-CM 377.73 (vis cortex dis w inflam). 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.