ICD-10 Code G40.82 – Epileptic spasms (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code G40.82 – Epileptic spasms
What it is
G40.82 identifies epileptic spasms, a seizure type marked by brief, sudden muscle contractions. Use it when the record clearly documents epileptic spasms rather than another seizure disorder.
Clinical signs
Typical features include clusters of brief flexion or extension spasms, often occurring on awakening or in series. Clinical features vary; refer to documentation for the exact seizure description and associated epilepsy syndrome.
When to use this code
Use this code when the clinician documents epileptic spasms as the confirmed diagnosis. It may appear in pediatric neurology records, EEG-based evaluations, or problem lists describing seizure clusters. Check documentation if the note only says “seizures” or “convulsions.”
Do not use for
Do not use it for nonspecific seizure diagnoses, febrile seizures, or other epilepsy types that are separately documented. If the record does not specify epileptic spasms, choose the more accurate code after review.
Coding tip
Code from the provider’s exact wording and confirm whether epileptic spasms are documented as the active diagnosis.