List of ICD-9 codes 390–459: diseases of the circulatory system

List of ICD-9 codes 390–459: Diseases of the Circulatory System encompasses a range of conditions related to the circulatory system, which includes the heart and blood vessels. These codes were part of the International Classification of Diseases, 9th Revision (ICD-9), a medical classification list by the World Health Organization (WHO). The ICD-9 codes were used to classify diseases and a wide variety of signs, symptoms, abnormal findings, complaints, social circumstances, and external causes of injury or disease until they were succeeded by ICD-10 in 2015. This list is crucial for healthcare professionals, researchers, policymakers, and insurance companies for documentation, reporting, and monitoring purposes.

390–398: Rheumatic Fever and Chronic Rheumatic Heart Diseases

• 390 Rheumatic fever without mention of heart involvement
• 391 Rheumatic fever with heart involvement
• 392 Rheumatic chorea
• 393 Chronic rheumatic pericarditis
• 394 Diseases of mitral valve
• 395 Diseases of aortic valve
• 396 Diseases of mitral and aortic valves
• 397 Diseases of other endocardial structures
• 398 Other rheumatic heart diseases

399–415: Diseases of Pulmonary Circulation

• 399 Other rheumatic heart diseases (Note: This is a continuation from the previous category and might be a clerical error in the original ICD-9 coding system)
• 401 Essential hypertension
• 402 Hypertensive heart disease
• 403 Hypertensive renal disease
• 404 Hypertensive heart and renal disease
• 405 Secondary hypertension
• 410 Acute myocardial infarction
• 411 Other acute and subacute forms of ischemic heart disease
• 412 Old myocardial infarction
• 413 Angina pectoris
• 414 Other forms of chronic ischemic heart disease
• 415 Acute pulmonary heart disease

416–429: Other Forms of Heart Disease

• 416 Chronic pulmonary heart disease
• 417 Other diseases of pulmonary circulation
• 420 Acute pericarditis
• 421 Acute and subacute endocarditis
• 422 Acute myocarditis
• 423 Other diseases of pericardium
• 424 Diseases of endocardium, not elsewhere classified
• 425 Cardiomyopathy
• 426 Conduction disorders
• 427 Cardiac arrhythmias
• 428 Heart failure
• 429 Ill-defined descriptions and complications of heart disease

430–438: Cerebrovascular Diseases

• 430 Subarachnoid hemorrhage
• 431 Intracerebral hemorrhage
• 432 Other and unspecified intracranial hemorrhage
• 433 Occlusion and stenosis of precerebral arteries
• 434 Occlusion of cerebral arteries
• 435 Transient cerebral ischemia
• 436 Acute but ill-defined cerebrovascular disease
• 437 Other and ill-defined cerebrovascular disease
• 438 Late effects of cerebrovascular disease

440–459: Diseases of Arteries, Arterioles, and Capillaries

• 440 Atherosclerosis
• 441 Aortic aneurysm and dissection
• 442 Other aneurysms
• 443 Peripheral vascular disease
• 444 Arterial embolism and thrombosis
• 445 Gangrene
• 446 Polyarteritis nodosa and allied conditions
• 447 Other disorders of arteries and arterioles
• 448 Diseases of capillaries
• 449 Septic arterial embolism
• 450 Acute venous embolism and thrombosis
• 451 Phlebitis and thrombophlebitis
• 452 Portal vein thrombosis
• 453 Other venous embolism and thrombosis
• 454 Varicose veins of lower extremities
• 455 Hemorrhoids
• 456 Varices of other sites
• 457 Noninfectious disorders of lymphatic channels
• 458 Hypotension
• 459 Other disorders of circulatory system

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