Diseases of the circulatory system
Other forms of heart disease
2020 ICD-10-CM Diagnosis Code I46
2016 2017 2018 2019 2020 Non-Billable/Non-Specific Code
- I46 should not be used for reimbursement purposes as there are multiple codes below it that contain a greater level of detail.
- The 2020 edition of ICD-10-CM I46 became effective on October 1, 2019.
- This is the American ICD-10-CM version of I46 - other international versions of ICD-10 I46 may differ.
Type 1 Excludes
Type 1 Excludes Help
A type 1 excludes note is a pure excludes. It means "not coded here". A type 1 excludes note indicates that the code excluded should never be used at the same time as I46. A type 1 excludes note is for used for when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
The following code(s) above I46
contain annotation back-references
In this context, annotation back-references refer to codes that contain:
- Applicable To annotations, or
- Code Also annotations, or
- Code First annotations, or
- Excludes1 annotations, or
- Excludes2 annotations, or
- Includes annotations, or
- Note annotations, or
- Use Additional annotations
that may be applicable to I46
- A disorder characterized by cessation of the pumping function of the heart.
- Cessation of heart beat or myocardial contraction. If it is treated within a few minutes, heart arrest can be reversed in most cases to normal cardiac rhythm and effective circulation.
- Cessation of the heart beat.
- Sudden cessation of the pumping function of the heart, with disappearance of arterial blood pressure, connoting either ventricular fibrillation or ventricular standstill.
- The heart has an internal electrical system that controls the rhythm of the heartbeat. Problems can cause abnormal heart rhythms, called arrhythmias. There are many types of arrhythmia. During an arrhythmia, the heart can beat too fast, too slow, or it can stop beating. Sudden cardiac arrest occurs when the heart develops an arrhythmia that causes it to stop beating. This is different than a heart attack, where the heart usually continues to beat but blood flow to the heart is blocked. There are many possible causes of cardiac arrest. They include coronary heart disease, heart attack, electrocution, drowning, or choking. There may not be a known cause to the cardiac arrest. Without medical attention, the person will die within a few minutes. People are less likely to die if they have early cardiopulmonary resuscitation (cpr) and defibrillation. Defibrillation is delivering an electric shock to restore the heart rhythm to normal.
- The sudden cessation of cardiac activity so that the victim subject/patient becomes unresponsive, without normal breathing and no signs of circulation. Cardiac arrest may be reversed by cpr, and/or defibrillation, cardioversion or cardiac pacing.
- 2016 (effective 10/1/2015): New code (first year of non-draft ICD-10-CM)
- 2017 (effective 10/1/2016): No change
- 2018 (effective 10/1/2017): No change
- 2019 (effective 10/1/2018): No change
- 2020 (effective 10/1/2019): No change
Code annotations containing back-references to I46:
ICD-10-CM Codes Adjacent To I46
Other right bundle-branch block
Nonspecific intraventricular block
Other specified heart block
Other specified conduction disorders
Other specified conduction disorders
Conduction disorder, unspecified
Cardiac arrest due to underlying cardiac condition
Cardiac arrest due to other underlying condition
Cardiac arrest, cause unspecified
Re-entry ventricular arrhythmia
Paroxysmal tachycardia, unspecified
Atrial fibrillation and flutter
Paroxysmal atrial fibrillation
Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.