2026 ICD-10-CM Diagnosis Code R48Dyslexia and other symbolic dysfunctions, not elsewhere classified

ICD-10-CM Codes›R00–R99›R47-R49›R48

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

R48 is a non-billable ICD-10-CM category code for dyslexia and other symbolic dysfunctions, not elsewhere classified, so it cannot be submitted on claims. Use a more specific code from this category instead, such as R48.0, R48.1, R48.2, and R48.3. As a symptom code, it should not be used as a principal diagnosis once a related definitive diagnosis has been established.

Code Identity

ICD-10-CM Code
R48
Billable Status
No — Non-Billable Category
Code Describes
Dyslexia and other symbolic dysfunctions, not elsewhere classified
Chapter
R47-R49
Symptoms and signs involving speech and voice

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 CodeR48Dyslexia and other symbolic dysfunctions, not elsewhere classified

Specific Coding for Dyslexia and oth symbolic dysfunctions, NECOverview

Non-specific codes like R48 require more characters. Use one of these billable codes instead:

  • Use R48.0 for Dyslexia and alexia

  • Use R48.1 for Agnosia

  • Use R48.2 for Apraxia

  • Use R48.3 for Visual agnosia

  • Use R48.8 for Other symbolic dysfunctions

  • Use R48.9 for Unspecified symbolic dysfunctions

Tabular List NotesGuidance

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

Type 1 Excludes

  • specific developmental disorders of scholastic skills F81

Patient EducationClinical

Learning Disabilities

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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 R48Overview

Is R48 a billable code?

No. This is a category header that groups the codes for dyslexia and other symbolic dysfunctions, not elsewhere classified, and headers cannot be submitted on claims. Claims for dyslexia and other symbolic dysfunctions, not elsewhere classified need a more specific code from this category, such as R48.0, R48.1, and R48.2.

Can R48 be a principal diagnosis?

Use it with care. This is a symptom code, so once a definitive diagnosis explaining the dyslexia and other symbolic dysfunctions, not elsewhere classified is established, that condition takes the principal position instead.