Specific code 2015 ICD-9-CM Diagnosis Code 794.02
Nonspecific abnormal electroencephalogram [EEG]
  • 2015
  • Billable Thru Sept 30/2015
  • Non-Billable On/After Oct 1/2015

  • ICD-9-CM 794.02 is a billable medical code that can be used to indicate a diagnosis on a reimbursement claim, however, 794.02 should only be used for claims with a date of service on or before September 30, 2015. For claims with a date of service on or after October 1, 2015, use an equivalent ICD-10-CM code (or codes).
Convert to ICD-10-CM: 794.02 converts directly to:
  • 2015/16 ICD-10-CM R94.01 Abnormal electroencephalogram [EEG]
Approximate Synonyms
  • Abnl electroencephalogram
  • Abnormal electroencephalogram
  • 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
  • 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
  • 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
  • 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
ICD-9-CM Volume 2 Index entries containing back-references to 794.02:
  • Abnormal, abnormality, abnormalities - see also Anomaly
    • electroencephalogram (EEG) 794.02
  • Findings, (abnormal), without diagnosis (examination) (laboratory test) 796.4
    • electroencephalogram (EEG) 794.02
ICD-9-CM codes are used in medical billing and coding to describe diseases, injuries, symptoms and conditions. ICD-9-CM 794.02 is one of thousands of ICD-9-CM codes used in healthcare. Although ICD-9-CM and CPT codes are largely numeric, they differ in that CPT codes describe medical procedures and services. Can't find a code? Start at the root of ICD-9-CM, check the 2015 ICD-9-CM Index or use the search engine at the top of this page to lookup any code.