794.02 - Nonspecific Abnormal Electroencephalogram [EEG]
The ICD 9 Code for Nonspecific abnormal electroencephalogram [EEG] is listed as 794.02.
Additional information concerning this code and description can be found below including ICD 10 crosswalks / GEMS, and chapter information where available.
| ICD 9 CM Field | Value |
|---|---|
| Diagnosis Code: | 794.02 |
| Long Description: | Nonspecific abnormal electroencephalogram [EEG] |
| Short Description: | Abn electroencephalogram |
| Chapter: | Symptoms, Signs, And Ill Defined Conditions |
| Block: | Nonspecific Abnormal Findings (790-796) |
| Related Descriptions: |
Alpha amplitude asymmetry
Alpha coma type recording Alpha frequency asymmetry Asymmetric beta activity Asymmetric EEG Asymmetrical mu activity Beta coma type recording Bilateral periodic epileptiform discharges Burst suppression Continuous periodic complexes Dominant alpha activity Dominant beta activity Dominant delta activity Dominant theta activity Electrocerebral silence Electroencephalogram abnormal Electroencephalogram abnormality with seizure Electroencephalogram abnormality without seizure Electroencephalogram artefact Electroencephalogram pattern of uncertain significance Excessive overbreathing response Focal continuous delta activity Focal continuous EEG abnormality Focal continuous theta activity Focal episodic delta activity Focal episodic EEG abnormality Focal episodic sharp waves Focal episodic spike wave Focal episodic spike wave with secondary generalization Focal episodic spikes Focal episodic theta activity Focal episodic unilateral three per second spike wave (situation) Focal recruiting discharge Focal reduction of EEG activity Focal rolandic spikes Focal sharp waves Focal spikes Frontal intermittent rhythmic delta activity Generalized atypical spike wave Generalized continuous EEG abnormality Generalized EEG amplitude asymmetry Generalized EEG frequency asymmetry Generalized epileptiform discharges Generalized episodic EEG abnormality Generalized intermittent delta activity Generalized intermittent theta activity Generalized multifocal spikes Generalized slow spike wave (less than three per second) Generalized three per second spike wave Intermittent periodic complexes Light-induced EEG abnormality Low amplitude EEG tracing Low amplitude six per second spike wave Low frequency alpha activity Low frequency background activity Low frequency delta activity Low frequency theta activity Occipital intermittent rhythmic delta activity Periodic complexes Periodic lateralized epileptiform discharges Positive spikes (including 14 and 6 per second) Prolonged overbreathing response Rhythmic mid-temporal discharge Small sharp transients during sleep Sound-induced EEG abnormality Subclinical rhythmical EEG discharges in adults Temporal slowing Trace alternant electroencephalogram pattern Triphasic waves Unilateral reduction of alpha activity (situation) |
| ICD-10-CM Diagnosis Codes General Equivalence Mappings (GEMS): | |
| ICD-10-CM Code: | R94.01 - Abnormal electroencephalogram [EEG] |
| ICD-9-CM Siblings (same level / similar specificity) of 794.02: | |
| 794.00 - Abnormal function study of brain and central nervous system, unspecified | |
| 794.01 - Nonspecific abnormal echoencephalogram | |
| 794.09 - Other nonspecific abnormal results of function study of brain and central nervous system | |