2026 ICD-10-CM Diagnosis Code R48.3Visual agnosia

ICD-10-CM Codes›R00–R99›R47-R49›R48

ICD-10-CM R48.3
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

R48.3 is a billable ICD-10-CM diagnosis code for visual agnosia. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to MS-DRG 124 through 125. As a symptom code, it should not be used as a principal diagnosis once a related definitive diagnosis has been established. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Nervous system signs and symptoms.

Code Identity

ICD-10-CM Code
R48.3
Billable Status
Yes — Valid for Submission
Code Describes
Visual agnosia
Short Description
Visual agnosia
Same as the full description in the CMS dataset.
Parent Code
R48
Dyslexia and other symbolic dysfunctions, not elsewhere classified

Code Classification

ChapterR00–R99Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified
SectionR47-R49Symptoms and signs involving speech and voice
CategoryR48Dyslexia and other symbolic dysfunctions, not elsewhere classified
This CodeR48.3Visual agnosia

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Anton's syndrome
  • Balint syndrome
  • Prosopagnosia
  • Psychophysical visual disturbance
  • Simultagnosia
  • Topographical agnosia
  • Visual agnosia
  • Visual agnosia for objects
  • Visual agnosia present
  • Visuospatial agnosia

Tabular List NotesGuidance

Coding notes and annotation back-references applicable to this code.

Inclusion Terms

  • Prosopagnosia
  • Simultanagnosia (asimultagnosia)

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.

    • Agnosia(body image) (other senses) (tactile)
      • visual (object)
    • Asimultagnosia(simultanagnosia)
    • Prosopagnosia
    • Simultanagnosia(asimultagnosia)

Clinical ClassificationClinical

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

CCSR SYM010
Nervous system signs and symptoms
Default principal diagnosis: inpatient Yes · outpatient Yes

Clinical InformationClinical

  • Prosopagnosia

    the inability to recognize a familiar face or to learn to recognize new faces. this visual agnosia is most often associated with lesions involving the junctional regions between the temporal and occipital lobes. the majority of cases are associated with bilateral lesions, however unilateral damage to the right occipito-temporal cortex has also been associated with this condition. (from cortex 1995 jun;31(2):317-29).

Convert R48.3 to ICD-9-CMHistory

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

ICD-9-CM
368.16 Psychophysic visual dist
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 R48.3Overview

Is R48.3 a billable code?

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

What MS-DRG does R48.3 group to?

When visual agnosia is the principal diagnosis on an inpatient stay, it groups to MS-DRG 124, 125, with relative weights from 0.7678 to 1.3231 depending on complications. Higher weights mean higher Medicare reimbursement.

Can R48.3 be a principal diagnosis?

Use it with care. This is a symptom code, so once a definitive diagnosis explaining the visual agnosia is established, that condition takes the principal position instead.

What is the ICD-9 equivalent of R48.3?

Under the General Equivalence Mappings, visual agnosia converts to ICD-9-CM 368.16 (psychophysic visual dist). The mapping is approximate, so confirm the match fits the documentation.

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.