I00–I99: Diseases of the Circulatory System
Chapter 9 of ICD-10-CM 2027, 1,807 codes in 10 blocks.
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Chapter instructions
Excludes2: not included here, code separately if applicable
- certain conditions originating in the perinatal period (P04-P96)
- certain infectious and parasitic diseases (A00-B99)
- complications of pregnancy, childbirth and the puerperium (O00-O9A)
- congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)
- endocrine, nutritional and metabolic diseases (E00-E88)
- injury, poisoning and certain other consequences of external causes (S00-T88)
- neoplasms (C00-D49)
- symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
- systemic connective tissue disorders (M30-M36)
- transient cerebral ischemic attacks and related syndromes (G45.-)
Codes in this chapter
All codesBillable only1,807 results
- I34.2Nonrheumatic mitral (valve) stenosis
- I34.8Other nonrheumatic mitral valve disorders
- I34.81Nonrheumatic mitral (valve) annulus calcification
- I34.89Other nonrheumatic mitral valve disorders
- I34.9Nonrheumatic mitral valve disorder, unspecified
- I35Nonrheumatic aortic valve disorders
- I35.0Nonrheumatic aortic (valve) stenosis
- I35.1Nonrheumatic aortic (valve) insufficiency
- I35.2Nonrheumatic aortic (valve) stenosis with insufficiency
- I35.8Other nonrheumatic aortic valve disorders
- I35.9Nonrheumatic aortic valve disorder, unspecified
- I36Nonrheumatic tricuspid valve disorders
- I36.0Nonrheumatic tricuspid (valve) stenosis
- I36.1Nonrheumatic tricuspid (valve) insufficiency
- I36.2Nonrheumatic tricuspid (valve) stenosis with insufficiency
- I36.8Other nonrheumatic tricuspid valve disorders
- I36.9Nonrheumatic tricuspid valve disorder, unspecified
- I37Nonrheumatic pulmonary valve disorders
- I37.0Nonrheumatic pulmonary valve stenosis
- I37.1Nonrheumatic pulmonary valve insufficiency
- I37.2Nonrheumatic pulmonary valve stenosis with insufficiency
- I37.8Other nonrheumatic pulmonary valve disorders
- I37.9Nonrheumatic pulmonary valve disorder, unspecified
- I38Endocarditis, valve unspecified
- I39Endocarditis and heart valve disorders in diseases classified elsewhere
- I40Acute myocarditis
- I40.0Infective myocarditis
- I40.1Isolated myocarditis
- I40.8Other acute myocarditis
- I40.9Acute myocarditis, unspecified
- I41Myocarditis in diseases classified elsewhere
- I42Cardiomyopathy
- I42.0Dilated cardiomyopathy
- I42.00Dilated cardiomyopathy, unspecified
- I42.01Familial-genetic dilated cardiomyopathy
- I42.09Other dilated cardiomyopathy
- I42.1Obstructive hypertrophic cardiomyopathy
- I42.2Other hypertrophic cardiomyopathy
- I42.3Endomyocardial (eosinophilic) disease
- I42.4Endocardial fibroelastosis
- I42.5Other restrictive cardiomyopathy
- I42.6Alcoholic cardiomyopathy
- I42.7Cardiomyopathy due to drug and external agent
- I42.8Other cardiomyopathies
- I42.81Arrhythmogenic cardiomyopathy
- I42.89Other cardiomyopathies not elsewhere classified
- I42.9Cardiomyopathy, unspecified
- I43Cardiomyopathy in diseases classified elsewhere
- I44Atrioventricular and left bundle-branch block
- I44.0Atrioventricular block, first degree