KCNQ2-related epilepsy, not intractable, without stat epi

This code identifies a form of epilepsy caused by a mutation in the KCNQ2 gene, which is responsible for potassium channel function in the brain. It specifically indicates that the seizures are currently well-controlled with treatment and the patient is not experiencing a prolonged seizure (status epilepticus).

Use this code for patients diagnosed with KCNQ2-related epilepsy whose seizures are responsive to medication and who are not in status epilepticus. Documentation should clearly state the genetic etiology (KCNQ2 mutation) and confirm the absence of intractability and status epilepticus.

• Ensure documentation explicitly links the epilepsy to a KCNQ2 gene mutation.
• Do not use if the epilepsy is intractable (difficult to control) or if the patient is experiencing status epilepticus; separate codes exist for those scenarios.
• Consider co-reporting with codes for any associated developmental delays or intellectual disabilities, if present.