ICD-10-CM — Chapter 9

Diseases of the circulatory system - Use for heart disease, hypertension, acute myocardial infarction (Heart Attack), and other diseases of the circulatory system.

Tabular List

Find your ICD-10-CM code by first selecting the most applicable chapter

Diseases of the circulatory system

- Use for heart disease, hypertension, acute myocardial infarction (Heart Attack), and other diseases of the circulatory system.


  • 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.-)
Expand All Chapter #9 contains the following ICD-10-CM sections:
  • I00 Rheumatic fever without heart involvement

  • 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


  • neonatal hypertension (P29.2)
  • primary pulmonary hypertension (I27.0)


  • hypertensive disease complicating pregnancy, childbirth and the puerperium (O10-O11, O13-O16)
  • I10 Essential (primary) hypertension

  • 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

  • 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

  • I39 Endocarditis and heart valve disorders in diseases classified elsewhere

  • I40 Acute myocarditis

  • I41 Myocarditis in diseases classified elsewhere

  • I42 Cardiomyopathy

  • I43 Cardiomyopathy in diseases classified elsewhere

  • 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

  • I5A Non-ischemic myocardial injury (non-traumatic)

    Inclusion term(s):

    • Acute (non-ischemic) myocardial injury
    • Chronic (non-ischemic) myocardial injury
    • Unspecified (non-ischemic) myocardial injury


  • traumatic intracranial hemorrhage (S06.-)
  • 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

    Note: Category I69 is to be used to indicate conditions in I60-I67 as the cause of sequelae. The 'sequelae' include conditions specified as such or as residuals which may occur at any time after the onset of the causal condition

  • 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

  • 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

    Inclusion term(s):

    • Portal (vein) obstruction
  • 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

    Inclusion term(s):

    • Gangrenous cellulitis
  • I97 Intraoperative and postprocedural complications and disorders of circulatory system, not elsewhere classified

  • I99 Other and unspecified disorders of circulatory system