Left Axis Deviation ICD-10-CM Codes | 2023

Read this short guide to learn about Left Axis Deviation ICD codes you can use!

By Telita Montales on Feb 29, 2024.

Fact Checked by Nate Lacson.

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Left Axis Deviation ICD-10-CM Codes | 2023

What Left Axis Deviation ICD-10 codes can I use?

If you’re looking for Left Axis Deviation ICD codes, please note there are no ICD-10 codes that mention left axis deviation. That doesn’t mean there isn’t one.

Left Axis Deviation is a term that can come up when reading the results of an electrocardiogram (ECG or EKG). This is the designation that will be given if the ventricular axis is between -30° and -90º.

The ICD-10 code that you can use for this is R94.31 - Abnormal electrocardiogram [ECG] [EKG]. You can use this code if your patient is confirmed to have a Left Axis Deviation based on electrocardiogram results. Please note this is not valid as a principal diagnosis this is meant to explain the results of an electrocardiogram. It doesn’t diagnose anything.

Is this lone Left Axis Deviation ICD-10 code billable?

Yes. This ICD-10 code for Left Axis Deviation, despite not being valid as a principal diagnosis, is valid in general and billable.

Clinical Information About Left Axis Deviation:

As mentioned earlier, a Left Axis Deviation is a potential result of an electrocardiogram test. This term is meant to describe the orientation of the heart’s electrical axis, which represents the direction of the electrical depolarization of cardiac tissue through the heart every cardiac cycle.

A normal ventricular axis (QRS axis) is within -30° and 90°. A Left Axis Deviation falls between -30° and -90º.

A person with Left Axis Deviation will likely have the following symptoms:

  • They will feel weak and fatigued
  • They will feel chest pain, especially when exercising
  • They will have shortness of breath and palpitations
  • They will feel dizzy and might even faint

Synonyms Include:

  • Left axis deviation
  • Left axis deviation greater than -90 degrees by EKG
  • P wave left axis deviation
  • Abnormal electrocardiogram result
  • Abnormal electrocardiogram result - left axis deviation
  • Left axis deviation EKG finding
  • Left axis deviation ICD 10
  • ICD 10 code for left axis deviation
  • ICD 10 left axis deviation
  • ICD 10 code left axis deviation
  • ICD 10 for left axis deviation
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Commonly asked questions

Are Left Axis Deviations indicative of heart problems?

It can be an indicator of heart problems because it can be caused by congenital heart disease, emphysema, left ventricular hypertrophy, left anterior fascicular block, myocardial infarction, and ventricular tachycardia, to mention a few. But it’s also possible for Left Axis Deviations to happen for non-pathological reasons.

How do healthcare professionals address Left Axis Deviations?

They need to determine what caused it first. Treatment will depend on the underlying cause.

Can age influence Left Axis Deviations?

Yes. Other factors that can influence these deviations are changes in the heart structure and underlying heart problems.

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