Chapter 9: Diseases of the circulatory system (I00-I99)
This chapter of the ICD-10-CM classification covers diagnosis codes from I00 through I99. Browse the sections below to find specific diagnosis codes within this chapter.
Chapter Notes
Excludes2 (not included here):
- 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.-)
Sections
-
I00-I02 Acute rheumatic fever (I00-I02)10 codes
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I05-I09 Chronic rheumatic heart diseases (I05-I09)33 codes
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I10-I1A Hypertensive diseases (I10-I1A)25 codes
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I20-I25 Ischemic heart diseases (I20-I25)119 codes
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I26-I28 Pulmonary heart disease and diseases of pulmonary circulation (I26-I28)41 codes
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I30-I5A Other forms of heart disease (I30-I5A)176 codes
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I60-I69 Cerebrovascular diseases (I60-I69)505 codes
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I70-I79 Diseases of arteries, arterioles and capillaries (I70-I79)421 codes
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I80-I89 Diseases of veins, lymphatic vessels and lymph nodes, not elsewhere classified (I80-I89)396 codes
-
I95-I99 Other and unspecified disorders of the circulatory system (I95-I99)72 codes
Top-Level Codes in This Chapter
- I00 Rheumatic fever without heart involvement Billable
- I01 Rheumatic fever with heart involvement
- I02 Rheumatic chorea
- I05 Rheumatic mitral valve diseases
- I06 Rheumatic aortic valve diseases
- I07 Rheumatic tricuspid valve diseases
- I08 Multiple valve diseases
- I09 Other rheumatic heart diseases
- I10 Essential (primary) hypertension Billable
- I11 Hypertensive heart disease
- I12 Hypertensive chronic kidney disease
- I13 Hypertensive heart and chronic kidney disease
- I15 Secondary hypertension
- I16 Hypertensive crisis
- I1A Other hypertension
- I20 Angina pectoris
- I21 Acute myocardial infarction
- I22 Subsequent ST elevation (STEMI) and non-ST elevation (NSTEMI) myocardial infarction
- I23 Certain current complications following ST elevation (STEMI) and non-ST elevation (NSTEMI) myocardial infarction (within the 28 day period)
- I24 Other acute ischemic heart diseases
- I25 Chronic ischemic heart disease
- I26 Pulmonary embolism
- I27 Other pulmonary heart diseases
- I28 Other diseases of pulmonary vessels
- I30 Acute pericarditis
- I31 Other diseases of pericardium
- I32 Pericarditis in diseases classified elsewhere Billable
- I33 Acute and subacute endocarditis
- I34 Nonrheumatic mitral valve disorders
- I35 Nonrheumatic aortic valve disorders
- I36 Nonrheumatic tricuspid valve disorders
- I37 Nonrheumatic pulmonary valve disorders
- I38 Endocarditis, valve unspecified Billable
- I39 Endocarditis and heart valve disorders in diseases classified elsewhere Billable
- I40 Acute myocarditis
- I41 Myocarditis in diseases classified elsewhere Billable
- I42 Cardiomyopathy
- I43 Cardiomyopathy in diseases classified elsewhere Billable
- I44 Atrioventricular and left bundle-branch block
- I45 Other conduction disorders
- I46 Cardiac arrest
- I47 Paroxysmal tachycardia
- I48 Atrial fibrillation and flutter
- I49 Other cardiac arrhythmias
- I50 Heart failure
- I51 Complications and ill-defined descriptions of heart disease
- I52 Other heart disorders in diseases classified elsewhere Billable
- I5A Non-ischemic myocardial injury (non-traumatic) Billable
- I60 Nontraumatic subarachnoid hemorrhage
- I61 Nontraumatic intracerebral hemorrhage
- I62 Other and unspecified nontraumatic intracranial hemorrhage
- I63 Cerebral infarction
- I65 Occlusion and stenosis of precerebral arteries, not resulting in cerebral infarction
- I66 Occlusion and stenosis of cerebral arteries, not resulting in cerebral infarction
- I67 Other cerebrovascular diseases
- I68 Cerebrovascular disorders in diseases classified elsewhere
- I69 Sequelae of cerebrovascular disease
- I70 Atherosclerosis
- I71 Aortic aneurysm and dissection
- I72 Other aneurysm
- I73 Other peripheral vascular diseases
- I74 Arterial embolism and thrombosis
- I75 Atheroembolism
- I76 Septic arterial embolism Billable
- I77 Other disorders of arteries and arterioles
- I78 Diseases of capillaries
- I79 Disorders of arteries, arterioles and capillaries in diseases classified elsewhere
- I80 Phlebitis and thrombophlebitis
- I81 Portal vein thrombosis Billable
- I82 Other venous embolism and thrombosis
- I83 Varicose veins of lower extremities
- I85 Esophageal varices
- I86 Varicose veins of other sites
- I87 Other disorders of veins
- I88 Nonspecific lymphadenitis
- I89 Other noninfective disorders of lymphatic vessels and lymph nodes
- I95 Hypotension
- I96 Gangrene, not elsewhere classified Billable
- I97 Intraoperative and postprocedural complications and disorders of circulatory system, not elsewhere classified
- I99 Other and unspecified disorders of circulatory system
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