R47.01 — Aphasia

R47.01

ICD-10 Chapter 18: Symptoms, Signs & Abnormal Findings — illustrative image — Chapter 18: Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00–R99) — illustrative image

What this code means

Aphasia is impairment of language — speaking, understanding, reading or writing — usually from brain injury such as stroke.

Also called: aphasia, language impairment.

When this code is used

Used for aphasia.

Where it sits in ICD-10-CM

Code R47.01 belongs to Chapter 18: Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified, which covers codes R00–R99 in the FY2027 ICD-10-CM tabular list. The official description above is copied verbatim from the CDC/NCHS FY2027 code file.

Learn more about this condition

Condition guide: Stroke

Related anatomy

Brain

Watch: related videos

▶ WatchWernickes aphasia interview with a patient ▶ WatchBroca s aphasia ▶ WatchWernicke s aphasia

Frequently asked questions

What is ICD-10-CM code R47.01?

R47.01 is the ICD-10-CM diagnosis code for “Aphasia”. Aphasia is impairment of language — speaking, understanding, reading or writing — usually from brain injury such as stroke.

When is code R47.01 used?

Used for aphasia. It belongs to Chapter 18 of ICD-10-CM (Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified).

This guide explains ICD-10-CM codes in plain language for patients, students and other readers. It is educational information only — not coding, billing or medical advice. The code recorded for any real encounter is assigned from the full clinical documentation by the treating team and qualified coders, and only they can decide which code fits a specific case.