Diseases of the circulatory system
Other forms of heart disease
2021 ICD-10-CM Diagnosis Code I42.9
2021 ICD-10-CM Diagnosis Code I42.9
2016 2017 2018 2019 2020 2021 Billable/Specific Code
- I42.9 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
- The 2021 edition of ICD-10-CM I42.9 became effective on October 1, 2020.
- This is the American ICD-10-CM version of I42.9 - other international versions of ICD-10 I42.9 may differ.
- Cardiomyopathy (primary) (secondary) NOS
The following code(s) above I42.9
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 I42.9
- Cardiomyopathy (disease of heart muscle)
- Cardiomyopathy associated with another disorder
- Cardiomyopathy, primary (heart condition)
- Congestive heart failure (chf) with cardiomyopathy
- Congestive heart failure due to cardiomyopathy
- Primary cardiomyopathy
- Secondary cardiomyopathy
- Tachycardia induced cardiomyopathy
ICD-10-CM I42.9 is grouped within Diagnostic Related Group(s) (MS-DRG v38.0):
- A disease of the heart muscle or myocardium proper. Cardiomyopathies may be classified as either primary or secondary, on the basis of etiology, or on the pathophysiology of the lesion: hypertrophic, dilated, or restrictive.
- A group of diseases in which the dominant feature is the involvement of the cardiac muscle itself. Cardiomyopathies are classified according to their predominant pathophysiological features (dilated cardiomyopathy; hypertrophic cardiomyopathy; restrictive cardiomyopathy) or their etiological/pathological factors (cardiomyopathy, alcoholic; endocardial fibroelastosis).
- Cardiomyopathy refers to diseases of the heart muscle. These diseases enlarge your heart muscle or make it thicker and more rigid than normal. In rare cases, scar tissue replaces the muscle tissue.some people live long, healthy lives with cardiomyopathy. Some people don't even realize they have it. In others, however, it can make the heart less able to pump blood through the body. This can cause serious complications, including
heart attacks, high blood pressure or infections can all cause cardiomyopathy. Some types of cardiomyopathy run in families. In many people, however, the cause is unknown. Treatment might involve medicines, surgery, other medical procedures and lifestyle changes.
- heart failure
- abnormal heart rhythms
- fluid buildup in your lungs or legs
- endocarditis, an inflammation of the heart lining
- Condition in which there is a deviation from or interruption of the normal structure or function of the myocardium, the middle and thickest layer of the heart wall, composed of heart muscle.
- 314 Other circulatory system diagnoses with mcc
- 315 Other circulatory system diagnoses with cc
- 316 Other circulatory system diagnoses without cc/mcc
Convert I42.9 to ICD-9-CM
- 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
- 2021 (effective 10/1/2020): No change
ICD-10-CM Codes Adjacent To I42.9
Obstructive hypertrophic cardiomyopathy
Other hypertrophic cardiomyopathy
Endomyocardial (eosinophilic) disease
Other restrictive cardiomyopathy
Cardiomyopathy due to drug and external agent
Cardiomyopathy in diseases classified elsewhere
Atrioventricular and left bundle-branch block
Atrioventricular block, first degree
Atrioventricular block, second degree
Atrioventricular block, complete
Other and unspecified atrioventricular block
Unspecified atrioventricular block
Other atrioventricular block
Left anterior fascicular block
Left posterior fascicular block
Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.