ICD-10 Code G31.87 – Primary progressive apraxia of speech (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code G31.87 – Primary progressive apraxia of speech
What it is
G31.87 identifies primary progressive apraxia of speech, a neurodegenerative disorder that gradually impairs planning and sequencing of speech movements. You use it when the main problem is progressive motor speech production, not weakness or language loss alone.
Clinical signs
Typical findings include slow, effortful speech, distorted sound substitutions, and inconsistent articulation errors. Clinical features vary; refer to documentation, but the speech problem should be progressive and prominent.
When to use this code
Use this code when the record documents a diagnosis of primary progressive apraxia of speech or a clinician clearly describes progressive apraxia as the primary disorder. It is appropriate when the note supports a degenerative speech-planning syndrome and not a transient or post-stroke speech issue. Check documentation if the diagnosis is uncertain.
Do not use for
Do not use this code for dysarthria, aphasia, or nonprogressive speech impairment without documented apraxia of speech. If the cause is another neurologic condition or the chart does not specify primary progressive apraxia, check documentation.
Coding tip
Code from the provider’s stated diagnosis and progression pattern; do not infer this code from speech difficulty alone.