Question: How do I go about coding brain death found by routine EEG? Wisconsin Subscriber Answer: The temptation might be to use 348.9 (Unspecified condition of the brain), but the ICD-9 alphabetic index directs coders to 348.8 (Other conditions of brain) for the listing "death, brain." Bonus tip: You should always verify that the alphabetic index gave you the most correct option by checking the tabular list. Remember the EEG: Routine electroencephalography (EEG) can be used to determine brain death. If your neurologist has performed an EEG under this scenario, you can use 95824 (Electroencephalogram [EEG]; cerebral death evaluation only) to code the diagnostic study.