Chapter 9: Diseases of the circulatory system
Code range I00-I99 - 80 categories
| Category | Description | Billable codes |
|---|---|---|
I00 | Rheumatic fever without heart involvement | 1 |
I01 | Rheumatic fever with heart involvement | 5 |
I02 | Rheumatic chorea | 2 |
I05 | Rheumatic mitral valve diseases | 5 |
I06 | Rheumatic aortic valve diseases | 5 |
I07 | Rheumatic tricuspid valve diseases | 5 |
I08 | Multiple valve diseases | 6 |
I09 | Other rheumatic heart diseases | 6 |
I10 | Essential (primary) hypertension | 1 |
I11 | Hypertensive heart disease | 2 |
I12 | Hypertensive chronic kidney disease | 2 |
I13 | Hypertensive heart and chronic kidney disease | 4 |
I15 | Secondary hypertension | 5 |
I16 | Hypertensive crisis | 3 |
I1A | Other hypertension | 1 |
I20 | Angina pectoris | 6 |
I21 | Acute myocardial infarction | 13 |
I22 | Subsequent STEMI & NSTEMI mocard infrc | 5 |
I23 | Certain crnt comp fol STEMI & NSTEMI mocard infrc <= 28 day | 9 |
I24 | Other acute ischemic heart diseases | 5 |
I25 | Chronic ischemic heart disease | 56 |
I26 | Pulmonary embolism | 12 |
I27 | Other pulmonary heart diseases | 17 |
I28 | Other diseases of pulmonary vessels | 4 |
I30 | Acute pericarditis | 4 |
I31 | Other diseases of pericardium | 8 |
I32 | Pericarditis in diseases classified elsewhere | 1 |
I33 | Acute and subacute endocarditis | 2 |
I34 | Nonrheumatic mitral valve disorders | 6 |
I35 | Nonrheumatic aortic valve disorders | 5 |
I36 | Nonrheumatic tricuspid valve disorders | 5 |
I37 | Nonrheumatic pulmonary valve disorders | 5 |
I38 | Endocarditis, valve unspecified | 1 |
I39 | Endocarditis and heart valve disorders in diseases classified elsewhere | 1 |
I40 | Acute myocarditis | 4 |
I41 | Myocarditis in diseases classified elsewhere | 1 |
I42 | Cardiomyopathy | 13 |
I43 | Cardiomyopathy in diseases classified elsewhere | 1 |
I44 | Atrioventricular and left bundle-branch block | 10 |
I45 | Other conduction disorders | 11 |
I46 | Cardiac arrest | 3 |
I47 | Paroxysmal tachycardia | 9 |
I48 | Atrial fibrillation and flutter | 9 |
I49 | Other cardiac arrhythmias | 12 |
I50 | Heart failure | 23 |
I51 | Complications and ill-defined descriptions of heart disease | 10 |
I52 | Other heart disorders in diseases classified elsewhere | 1 |
I5A | Non-ischemic myocardial injury (non-traumatic) | 1 |
I60 | Nontraumatic subarachnoid hemorrhage | 18 |
I61 | Nontraumatic intracerebral hemorrhage | 9 |
I62 | Other and unspecified nontraumatic intracranial hemorrhage | 6 |
I63 | Cerebral infarction | 91 |
I65 | Occls and stenosis of precerb art, not rslt in cereb infrc | 11 |
I66 | Occls and stenosis of cereb art, not rslt in cerebral infrc | 15 |
I67 | Other cerebrovascular diseases | 17 |
I68 | Cerebrovascular disorders in diseases classified elsewhere | 3 |
I69 | Sequelae of cerebrovascular disease | 240 |
I70 | Atherosclerosis | 246 |
I71 | Aortic aneurysm and dissection | 31 |
I72 | Other aneurysm | 9 |
I73 | Other peripheral vascular diseases | 6 |
I74 | Arterial embolism and thrombosis | 11 |
I75 | Atheroembolism | 10 |
I76 | Septic arterial embolism | 1 |
I77 | Other disorders of arteries and arterioles | 23 |
I78 | Diseases of capillaries | 4 |
I79 | Disord of art, arterioles and capilare in dis classd elswhr | 3 |
I80 | Phlebitis and thrombophlebitis | 39 |
I81 | Portal vein thrombosis | 1 |
I82 | Other venous embolism and thrombosis | 145 |
I83 | Varicose veins of lower extremities | 57 |
I85 | Esophageal varices | 4 |
I86 | Varicose veins of other sites | 6 |
I87 | Other disorders of veins | 44 |
I88 | Nonspecific lymphadenitis | 4 |
I89 | Oth noninfective disorders of lymphatic vessels and nodes | 4 |
I95 | Hypotension | 7 |
I96 | Gangrene, not elsewhere classified | 1 |
I97 | Intraop and postproc comp and disorders of circ sys, NEC | 39 |
I99 | Other and unspecified disorders of circulatory system | 2 |
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