ICD-10 Code G93.45 – Developmental and epileptic encephalopathy (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code G93.45 – Developmental and epileptic encephalopathy
What it is
G93.45 identifies developmental and epileptic encephalopathy, a condition where recurrent seizures and abnormal brain activity contribute to impaired development. It is used when the diagnosis is specifically documented.
Clinical signs
Typical findings include early-onset seizures, developmental delay, and regression or slowed progress in skills. Clinical features vary; refer to documentation.
When to use this code
Use G93.45 when the provider documents developmental and epileptic encephalopathy or a closely equivalent diagnosis. Code it from neurologic or pediatric records that clearly link epilepsy with developmental impairment. If the record is nonspecific, check documentation before assigning this code.
Do not use for
Do not use this code for seizures alone, isolated developmental delay, or epilepsy without documented encephalopathy. Check documentation if the condition is described only as suspected or ruled out.
Coding tip
Assign G93.45 only when the chart explicitly supports both epileptic activity and developmental encephalopathy.