2026 ICD-10-CM Diagnosis Code H53.40Unspecified visual field defects

ICD-10-CM Codes›H00–H59›H53-H54›H53

ICD-10-CM H53.40
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

H53.40 is a billable ICD-10-CM diagnosis code for unspecified visual field defects. 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 Blindness and vision defects.

Code Identity

ICD-10-CM Code
H53.40
Billable Status
Yes — Valid for Submission
Code Describes
Unspecified visual field defects
Short Description
Unspecified visual field defects
Same as the full description in the CMS dataset.
Parent Code
H53.4
Visual field defects

Code Classification

ChapterH00–H59Diseases of the eye and adnexa
SectionH53-H54Visual disturbances and blindness
CategoryH53Visual disturbances
This CodeH53.40Unspecified visual field defects

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Abnormal peripheral vision
  • Bilateral peripheral visual field defect
  • Bilateral visual defect of eyes
  • Bilateral visual field constriction
  • Constriction of visual field of left eye
  • Constriction of visual field of right eye
  • Functional visual field loss
  • Glaucomatous visual field defect
  • Loss of part of visual field
  • Peripheral visual field defect
  • Peripheral visual field defect of left eye
  • Peripheral visual field defect of right eye
  • Progressive visual field defect
  • Seeing blob in vision
  • Tunnel vision of bilateral eyes
  • Tunnel vision of left eye
  • Tunnel vision of right eye
  • Tunnel visual field constriction
  • Visual field constriction
  • Visual field defect
  • Visual field defect due to and following cerebrovascular accident
  • Visual field defect due to and following intracerebral hemorrhage
  • Visual field defect of left eye
  • Visual field defect of right eye

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.

    • Defect, defective
      • visual field

Clinical ClassificationClinical

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

CCSR EYE010
Blindness and vision defects
Default principal diagnosis: inpatient Yes · outpatient Yes

Clinical InformationClinical

  • Central Visual Field Defect

    reduced or abnormal sight in the central visual field.

  • Congruent Visual Field Defect

    identically shaped visual field defect in the same location in both eyes.

  • Heteronymous Visual Field Defect

    a bilateral visual field defect on opposite sides of the visual space of each eye (right or left).

  • Homonymous Visual Field Defect

    a bilateral visual field defect on the same side of visual space of each eye (right or left).

  • Incongruent Visual Field Defect

    non-identically shaped visual field defect in the same location in both eyes.

  • Peripheral Visual Field Defect

    reduced or abnormal sight in the peripheral visual field.

  • Visual Field Defect

    an absolute or relative reduction in the extent of the normal field of vision.

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 H53.40 to ICD-9-CMHistory

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

ICD-9-CM
368.40 Visual field defect NOS
Exact Match The mapping is direct, with no qualifiers.

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 H53.40Overview

Is H53.40 (Visual field defects) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report unspecified visual field defects on HIPAA-covered claims from October 1, 2025 through September 30, 2026.

What is the ICD-9 equivalent of H53.40?

Under the General Equivalence Mappings, unspecified visual field defects converts to ICD-9-CM 368.40 (visual field defect NOS). The mapping is a direct match.

Footnotes

[1] Not chronic - A diagnosis code that does not fit the criteria for chronic condition (duration, ongoing medical treatment, and limitations) is considered not chronic. Some codes designated as not chronic are acute conditions. Other diagnosis codes that indicate a possible chronic condition, but for which the duration of the illness is not specified in the code description (i.e., we do not know the condition has lasted 12 months or longer) also are considered not chronic.