KCNQ2-related epilepsy, not intractable, with stat epi

This code identifies a specific genetic form of epilepsy caused by a mutation in the KCNQ2 gene, characterized by seizures that are currently responsive to treatment (not intractable). The patient is also experiencing status epilepticus, a prolonged or recurrent seizure state without full recovery of consciousness between episodes.

Use this code when documentation confirms a diagnosis of KCNQ2-related epilepsy and explicitly states that the condition is not intractable. The presence of status epilepticus must also be clearly documented. This code is appropriate for patients presenting with an acute episode of status epilepticus in the context of their KCNQ2-related epilepsy.

• Ensure documentation clearly specifies "not intractable" for the KCNQ2-related epilepsy. If intractability is present, a different code from the G40.84- series would be appropriate.
• Verify that status epilepticus is explicitly documented, not just a general seizure.
• Sequence this code as the primary diagnosis when the KCNQ2-related epilepsy with status epilepticus is the reason for the encounter.