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
- I26.96Fat embolism of pulmonary artery without acute cor pulmonale
- I26.99Other pulmonary embolism without acute cor pulmonale
- I27Other pulmonary heart diseases
- I27.0Primary pulmonary hypertension
- I27.1Kyphoscoliotic heart disease
- I27.2Other secondary pulmonary hypertension
- I27.20Pulmonary hypertension, unspecified
- I27.21Secondary pulmonary arterial hypertension
- I27.22Pulmonary hypertension due to left heart disease
- I27.23Pulmonary hypertension due to lung diseases and hypoxia
- I27.24Chronic thromboembolic pulmonary hypertension
- I27.29Other secondary pulmonary hypertension
- I27.8Other specified pulmonary heart diseases
- I27.81Cor pulmonale (chronic)
- I27.82Chronic pulmonary embolism
- I27.83Eisenmenger's syndrome
- I27.84Fontan related circulation
- I27.840Fontan-associated liver disease [FALD]
- I27.841Fontan-associated lymphatic dysfunction
- I27.848Other Fontan-associated condition
- I27.849Fontan related circulation, unspecified
- I27.89Other specified pulmonary heart diseases
- I27.9Pulmonary heart disease, unspecified
- I28Other diseases of pulmonary vessels
- I28.0Arteriovenous fistula of pulmonary vessels
- I28.1Aneurysm of pulmonary artery
- I28.8Other diseases of pulmonary vessels
- I28.9Disease of pulmonary vessels, unspecified
- I30Acute pericarditis
- I30.0Acute nonspecific idiopathic pericarditis
- I30.1Infective pericarditis
- I30.8Other forms of acute pericarditis
- I30.9Acute pericarditis, unspecified
- I31Other diseases of pericardium
- I31.0Chronic adhesive pericarditis
- I31.1Chronic constrictive pericarditis
- I31.2Hemopericardium, not elsewhere classified
- I31.3Pericardial effusion (noninflammatory)
- I31.31Malignant pericardial effusion in diseases classified elsewhere
- I31.39Other pericardial effusion (noninflammatory)
- I31.4Cardiac tamponade
- I31.8Other specified diseases of pericardium
- I31.9Disease of pericardium, unspecified
- I32Pericarditis in diseases classified elsewhere
- I33Acute and subacute endocarditis
- I33.0Acute and subacute infective endocarditis
- I33.9Acute and subacute endocarditis, unspecified
- I34Nonrheumatic mitral valve disorders
- I34.0Nonrheumatic mitral (valve) insufficiency
- I34.1Nonrheumatic mitral (valve) prolapse