ICD-10 Code G83.84 – Todd’s paralysis (postepileptic) (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code G83.84 – Todd’s paralysis (postepileptic)
What it is
This code identifies a temporary weakness or paralysis that occurs after a seizure. It reflects a postictal neurologic deficit, not a chronic motor disorder.
Clinical signs
Typical findings include unilateral weakness, reduced movement, or transient paralysis after a seizure. Clinical features vary; refer to documentation.
When to use this code
Use this code when the record documents Todd’s paralysis or postepileptic weakness following a seizure. It is appropriate when the clinician links the deficit to the seizure event. If the chart only notes seizure with weakness, check documentation for a specific postictal diagnosis.
Do not use for
Do not use it for chronic hemiparesis, stroke, or other persistent neurologic deficits unrelated to seizures. Check documentation if the weakness has another documented cause.
Coding tip
Code the postictal paralysis only when the provider clearly documents it as Todd’s paralysis.