2026 ICD-10-CM Diagnosis Code R47.02Dysphasia

ICD-10-CM Codes›R00–R99›R47-R49›R47

ICD-10-CM R47.02
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

R47.02 is a billable ICD-10-CM diagnosis code for dysphasia. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026). 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
R47.02
Billable Status
Yes — Valid for Submission
Code Describes
Dysphasia
Short Description
Dysphasia
Same as the full description in the CMS dataset.
Parent Code
R47.0
Dysphasia and aphasia

Code Classification

ChapterR00–R99Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified
SectionR47-R49Symptoms and signs involving speech and voice
CategoryR47Speech disturbances, not elsewhere classified
This CodeR47.02Dysphasia

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Acquired dysphasia
  • Anterior dysphasia
  • Central paraphasia
  • Dysphasia
  • Frontal dynamic dysphasia
  • Literal paraphasia
  • Mixed dysphasia
  • Mixed transcortical dysphasia
  • Non-Alzheimer's progressive dysphasia
  • Paraphasia
  • Semantic dysphasia
  • Spastic dysarthria
  • Transcortical motor dysphasia
  • Transcortical sensory dysphasia
  • Verbal paraphasia

Tabular List NotesGuidance

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

Type 1 Excludes

  • dysphasia following cerebrovascular disease (I69. with final characters -21)

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.

    • Dysphasia
    • Paraphasia

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

  • Dysphasia

    impairment of verbal communication skills, often resulting from brain damage.

  • Dysphasia following Cerebral Infarction|Dysphasia following cerebral infarction

    evidence of dysphasia following cerebral infarction.

  • Dysphasia following Other Cerebrovascular Disease|Dysphasia following other cerebrovascular disease

    evidence of dysphasia following other cerebrovascular disease.

  • Dysphasia following Unspecified Cerebrovascular Disease|Dysphasia following unspecified cerebrovascular disease

    evidence of dysphasia following unspecified cerebrovascular disease.

  • Dysphasia, CTCAE|Dysphasia|Dysphasia

    a disorder characterized by impairment of verbal communication skills, often resulting from brain damage.

  • Grade 1 Dysphasia, CTCAE|Grade 1 Dysphasia

    awareness of receptive or expressive characteristics; not impairing ability to communicate

  • Grade 2 Dysphasia, CTCAE|Grade 2 Dysphasia

    moderate receptive or expressive characteristics; impairing ability to communicate spontaneously

  • Grade 3 Dysphasia, CTCAE|Grade 3 Dysphasia

    severe receptive or expressive characteristics; impairing ability to read, write or communicate intelligibly

  • Dysphasia, CTCAE 6.0

    a disorder characterized by impairment of verbal communication skills, often resulting from brain damage.

  • Grade 1 Dysphasia, CTCAE 6.0

    awareness of receptive or expressive characteristics; not impairing ability to communicate

  • Grade 2 Dysphasia, CTCAE 6.0

    moderate receptive or expressive characteristics; impairing ability to communicate spontaneously

  • Grade 3 Dysphasia, CTCAE 6.0

    severe receptive or expressive characteristics; impairing ability to read, write or communicate intelligibly

  • Grade 4 Dysphasia, CTCAE 6.0

    total loss of the ability to read, write, or communicate intelligibly

Patient EducationClinical

Aphasia

Aphasia is a language disorder that makes it hard for you to read, write, and say what you mean to say. Sometimes it makes it hard to understand what other people are saying, too. Aphasia is not a disease. It's a symptom of damage to the parts of the brain that control language.

The full article covers:

  • What is aphasia?
  • What causes aphasia?
  • Who is more likely to develop aphasia?
  • How is aphasia diagnosed?
  • What are the treatments for aphasia?
  • Can aphasia be prevented?

Read the full article at MedlinePlus

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

Convert R47.02 to ICD-9-CMHistory

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

ICD-9-CM
784.59 Speech disturbance NEC
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 R47.02Overview

Is R47.02 (Dysphasia and aphasia) a billable code?

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

Can R47.02 be a principal diagnosis?

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

What is the ICD-9 equivalent of R47.02?

Under the General Equivalence Mappings, dysphasia converts to ICD-9-CM 784.59 (speech disturbance NEC). 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.