ICD-10-CM 2027
ICD-10 code for epileptic deterioration
From the official ICD-10-CM alphabetic index entry “Deterioration › epileptic”. Page updated September 29, 2026.
About coding epileptic deterioration
The ICD-10-CM code for epileptic deterioration is F06.8 (Other specified mental disorders due to known physiological condition).
Within F06, choose F06.8 (Other specified mental disorders due to known physiological condition) only when documentation doesn't support a more specific option: psychotic disorder with hallucinations due to known physiological condition (F06.0), Catatonic disorder due to known physiological condition (F06.1), psychotic disorder with delusions due to known physiological condition (F06.2), mood disorder due to known physiological condition (F06.3), anxiety disorder due to known physiological condition (F06.4) and mild neurocognitive disorder due to known physiological condition (F06.7).
Code first: the underlying physiological condition.
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
Common questions about epileptic deterioration ICD-10 codes
What is the ICD-10 code for epileptic deterioration?
- F06.8 — Other specified mental disorders due to known physiological condition.
Is F06.8 billable?
- Yes. F06.8 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can F06.8 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict F06.8 as a principal diagnosis.
Is F06.8 a CC or MCC?
- No. F06.8 is neither a CC nor an MCC under MS-DRG v44.0.