ICD-10 Diagnosis Code R94.31

Abnormal electrocardiogram [ECG] [EKG]

Diagnosis Code R94.31

ICD-10: R94.31
Short Description: Abnormal electrocardiogram [ECG] [EKG]
Long Description: Abnormal electrocardiogram [ECG] [EKG]
This is the 2017 version of the ICD-10-CM diagnosis code R94.31

Code Classification
  • Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified
    • Abnormal findings on diagnostic imaging and in function studies, without diagnosis (R90-R94)
      • Abnormal results of function studies (R94)

Information for Medical Professionals

According to ICD-10-CM guidelines this code should not to be used as a principal diagnosis code when a related definitive diagnosis has been established.
Diagnostic Related Groups
The diagnosis code R94.31 is grouped in the following Diagnostic Related Group(s) (MS-DRG v33.0)


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The ICD-10 and ICD-9 GEMs are used to facilitate linking between the diagnosis codes in ICD-9-CM and the new ICD-10-CM code set. The GEMs are the raw material from which providers, health information vendors and payers can derive specific applied mappings to meet their needs.
  • 794.31 - Abnorm electrocardiogram

  • Ambulatory electrocardiogram abnormal
  • Anterior and lateral ST segment elevation
  • Anterior myocardial infarction on electrocardiogram
  • Anterior ST segment depression
  • Anterior ST segment elevation
  • Anterior T wave inversion
  • Bifid T wave
  • Bifid U wave
  • Borderline abnormal electrocardiogram
  • Counterclockwise vectorcardiographic loop
  • Deep S wave
  • Deep symmetric anterior T wave inversion
  • Diffuse ST segment depression
  • Digitalis toxicity by electrocardiogram
  • Diminished left ventricle forces by electrocardiogram
  • Diminished right ventricle forces by electrocardiogram
  • Electrical alternation of heart
  • Electrocardiogram abnormal
  • Electrocardiogram showing electrical capture following temporary pacing
  • Electrocardiogram showing paced rhythm with electrical capture
  • Electrocardiogram: premature ventricular contractions
  • Electrocardiogram: sinus arrhythmia
  • Electrocardiogram: sinus bradycardia
  • Electrocardiographic asystole
  • Electrocardiographic atrial fibrillation
  • Electrocardiographic atrial flutter
  • Electrocardiographic axis perpendicular to frontal plane
  • Electrocardiographic heart block
  • Electrocardiographic junctional escape rhythm
  • Electrocardiographic left bundle branch block
  • Electrocardiographic left ventricle hypertrophy
  • Electrocardiographic left ventricular strain
  • Electrocardiographic myocardial infarction
  • Electrocardiographic myocardial ischemia
  • Electrocardiographic P wave abnormal
  • Electrocardiographic P-R interval abnormal
  • Electrocardiographic Q wave abnormal
  • Electrocardiographic QRS complex abnormal
  • Electrocardiographic R wave abnormal
  • Electrocardiographic right ventricular hypertrophy
  • Electrocardiographic S wave abnormal
  • Electrocardiographic ST interval abnormal
  • Electrocardiographic ST segment changes
  • Electrocardiographic supraventricular arrhythmia
  • Electrocardiographic supraventricular tachycardia
  • Electrocardiographic T wave abnormal
  • Electrocardiographic torsades de pointes
  • Electrocardiographic U wave abnormal
  • Electrocardiographic ventricular arrhythmia
  • Electrocardiographic ventricular fibrillation
  • Electrocardiographic ventricular tachycardia
  • Flat U wave
  • Flattened P wave
  • Flattened T wave
  • Flattened U wave
  • High T-voltage
  • Hypertrophy of cardiac atrium, determined by electrocardiogram
  • Hypertrophy of cardiac atrium, determined by electrocardiogram
  • Hypertrophy of cardiac ventricle, determined by electrocardiogram
  • Hypertrophy of left cardiac atrium, determined by electrocardiogram
  • Hypogonadism, diabetes mellitus, alopecia, mental retardation and electrocardiographic abnormalities
  • Inferior and lateral ST segment elevation
  • Inferior and right sided ST segment elevation
  • Inferior ST segment depression
  • Inferior ST segment elevation
  • Inverted biphasic anterior T wave
  • Inverted T wave
  • Inverted U wave
  • Lateral ST segment elevation
  • Left axis deviation
  • Left axis deviation greater than -90 degrees by electrocardiogram
  • Left ventricular hypertrophy by electrocardiogram
  • Left ventricular ST changes
  • Low ventricular voltage by electrocardiogram
  • Myocardial hypertrophy, determined by electrocardiogram
  • Myocardial hypertrophy, determined by electrocardiogram
  • Nonspecific ST-T abnormality on electrocardiogram
  • P mitrale
  • P pulmonale
  • P wave right axis deviation
  • Pathological Q wave
  • Posterior ST segment depression
  • Posterior ST segment elevation
  • PR depression
  • PR elevation
  • Prolonged P wave
  • Prolonged PR interval
  • Prolonged T wave
  • Prolonged TU interval
  • Prolonged U wave
  • Q wave height decreased
  • Q wave height increased
  • QRS complex height decreased
  • QRS complex height increased
  • R wave height decreased
  • R wave height increased
  • Reverse tick ST segment
  • Right atrial hypertrophy by electrocardiogram
  • Right axis deviation
  • Right ventricular ST changes
  • S wave height decreased
  • S wave height increased
  • Secondary ST-T abnormality on electrocardiogram
  • Shortened P wave
  • Shortened PR interval
  • Shortened ST interval
  • Shortened ST segment
  • Shortened T wave
  • Shortened TU interval
  • Shortened U wave
  • Sloping PR interval
  • Sloping ST segment
  • ST segment depression
  • ST segment elevation
  • Tall P wave
  • Tall R wave
  • Tall T wave
  • Tall tented T wave
  • Tall U wave
  • TU depression
  • TU elevation
  • Type A Wolff-Parkinson-White pattern
  • Type B Wolff-Parkinson-White pattern
  • Ventricular inversion
  • Wide QRS complex

Index of Diseases and Injuries
References found for the code R94.31 in the Index of Diseases and Injuries:

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