NICM ICD-10-CM Codes

Are the NICM ICD codes billable?

All listed codes are billable ICD-10-CM diagnosis codes. Use the most specific code possible to reflect the patient's condition accurately.

Clinical information

Nonischemic cardiomyopathy affects the heart muscle without coronary artery obstruction. It commonly presents with ventricular hypertrophy, impaired contractility, or dilated cardiomyopathy, leading to congestive heart failure and symptoms such as edema, chest pain, or arrhythmia.

Common causes of nonischemic cardiomyopathy include drug toxicity, inflammation, autoimmune responses, viral infections, and infiltrative diseases. Individuals at higher risk for NICM often have underlying conditions such as obesity, diabetes, coronary heart disease, a history of heart attack, high blood pressure, or a family history of cardiomyopathy.

The condition can be primary or secondary to other medical issues. Subtypes include:

• Dilated cardiomyopathy – The most frequent form, often idiopathic or genetic.
• Restrictive cardiomyopathy – Characterized by stiffened heart walls.
• Hypertrophic cardiomyopathy – Often hereditary, with or without obstruction.
• Peripartum cardiomyopathy – Occurs in pregnant or postpartum individuals.

Common signs and symptoms of non-ischemic cardiomyopathy are fainting, palpitations, chest pain, shortness of breath, dizziness, weakness, fatigue, and swelling of the feet and ankles. And unlike cardiomyopathies caused by a prior myocardial infarction or chronic hypertensive heart disease, NICM originates from structural, genetic, or toxic damage.

To diagnose, a practitioner will have the patient undergo three tests: echocardiogram, angiogram, and stress test. Treatment varies and depends on the heart damage and symptoms. However, common treatments are medication and lifestyle changes. 

Synonyms include

• Nonischemic cardiomyopathy
• NICM
• Primary cardiomyopathy
• Congestive cardiomyopathy
• Cardiomyopathy NOS
• Cardiomyopathy in diseases classified elsewhere
• Dilated cardiomyopathy
• Restrictive cardiomyopathy
• Hypertrophic nonobstructive cardiomyopathy
• Cardiomyopathy due to drugs
• Endomyocardial fibrosis
• Peripartum cardiomyopathy
• Myocardial disease NOS
• Unspecified cardiomyopathy
• Hypertrophic obstructive cardiomyopathy
• Dilated cardiomyopathy secondary

Related ICD-10 codes

• I43 – Cardiomyopathy in diseases classified elsewhere: For cardiomyopathy secondary to systemic disease.
• I50.9 – Heart failure, unspecified: Often a complication of NICM.
• I25.5 – Ischemic cardiomyopathy: Important to distinguish from NICM.