Diseases of the circulatory system
Chapter 9 of the ICD-10-CM Tabular List covers I00-I99 and contains 1,807 codes across 80 categories, of which 1,433 are billable for FY2027.
Excludes2 — not included here
The conditions below are not part of this code, but a patient may have both at the same time. When documentation supports it, this code and the excluded code may both be reported.
- 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.-)
I00-I02 — Acute rheumatic fever
I05-I09 — Chronic rheumatic heart diseases
I10-I1A — Hypertensive diseases
I20-I25 — Ischemic heart diseases
- I20Angina pectoris
- I21Acute myocardial infarction
- I22Subsequent ST elevation (STEMI) and non-ST elevation (NSTEMI) myocardial infarction
- I23Certain current complications following ST elevation (STEMI) and non-ST elevation (NSTEMI) myocardial infarction (within the 28 day period)
- I24Other acute ischemic heart diseases
- I25Chronic ischemic heart disease
I26-I28 — Pulmonary heart disease and diseases of pulmonary circulation
I30-I5A — Other forms of heart disease
- I30Acute pericarditis
- I31Other diseases of pericardium
- I32Pericarditis in diseases classified elsewhere
- I33Acute and subacute endocarditis
- I34Nonrheumatic mitral valve disorders
- I35Nonrheumatic aortic valve disorders
- I36Nonrheumatic tricuspid valve disorders
- I37Nonrheumatic pulmonary valve disorders
- I38Endocarditis, valve unspecified
- I39Endocarditis and heart valve disorders in diseases classified elsewhere
- I40Acute myocarditis
- I41Myocarditis in diseases classified elsewhere
- I42Cardiomyopathy
- I43Cardiomyopathy in diseases classified elsewhere
- I44Atrioventricular and left bundle-branch block
- I45Other conduction disorders
- I46Cardiac arrest
- I47Paroxysmal tachycardia
- I48Atrial fibrillation and flutter
- I49Other cardiac arrhythmias
- I50Heart failure
- I51Complications and ill-defined descriptions of heart disease
- I52Other heart disorders in diseases classified elsewhere
- I5ANon-ischemic myocardial injury (non-traumatic)
I60-I69 — Cerebrovascular diseases
- I60Nontraumatic subarachnoid hemorrhage
- I61Nontraumatic intracerebral hemorrhage
- I62Other and unspecified nontraumatic intracranial hemorrhage
- I63Cerebral infarction
- I65Occlusion and stenosis of precerebral arteries, not resulting in cerebral infarction
- I66Occlusion and stenosis of cerebral arteries, not resulting in cerebral infarction
- I67Other cerebrovascular diseases
- I68Cerebrovascular disorders in diseases classified elsewhere
- I69Sequelae of cerebrovascular disease
I70-I79 — Diseases of arteries, arterioles and capillaries
- I70Atherosclerosis
- I71Aortic aneurysm and dissection
- I72Other aneurysm
- I73Other peripheral vascular diseases
- I74Arterial embolism and thrombosis
- I75Atheroembolism
- I76Septic arterial embolism
- I77Other disorders of arteries and arterioles
- I78Diseases of capillaries
- I79Disorders of arteries, arterioles and capillaries in diseases classified elsewhere
I80-I89 — Diseases of veins, lymphatic vessels and lymph nodes, not elsewhere classified
- I80Phlebitis and thrombophlebitis
- I81Portal vein thrombosis
- I82Other venous embolism and thrombosis
- I83Varicose veins of lower extremities
- I85Esophageal varices
- I86Varicose veins of other sites
- I87Other disorders of veins
- I88Nonspecific lymphadenitis
- I89Other noninfective disorders of lymphatic vessels and lymph nodes