Internal medicine

Subspecialties

United States

In the United States, two organizations are responsible for certification of subspecialists within the field: the American Board of Internal Medicine and the American Osteopathic Board of Internal Medicine. Physicians (not only internists) who successfully pass board exams receive "board certified" status.

American Board of Internal Medicine

The following are the subspecialties recognized by the American Board of Internal Medicine.^[23]

• 
  Adolescent medicine
  
• 
  Allergy, Asthma and Immunology, concerned with the diagnosis, treatment and management of allergies, asthma and disorders of the immune system.^[24]
  
• 
  Adult Congenital Heart Disease
  
• 
  Advanced Heart Failure and Transplant Cardiology
  
• 
  Cardiovascular Disease, dealing with disorders of the heart and blood vessels*
  
• 
  Clinical cardiac electrophysiology
  
• 
  Critical care medicine
  
• 
  Endocrinology, Diabetes & Metabolism, dealing with disorders of the endocrine system and its specific secretions called hormones
  
• 
  Gastroenterology, concerned with the field of digestive diseases
  
• 
  Geriatric medicine
  
• 
  Hematology, concerned with blood, the blood-forming organs and its disorders.
  
• 
  Hospice & Palliative Medicine
  
• 
  Infectious disease, concerned with disease caused by a biological agent such as by a virus, bacterium or parasite
  
• 
  Interventional cardiology
  
• 
  Medical oncology, dealing with the chemotherapeutic (chemical) and/or immunotherapeutic (immunological) treatment of cancer
  
• 
  Nephrology, dealing with the study of the function and diseases of the kidney
  

Neurocritical Care

• 
  Pulmonary Disease, dealing with diseases of the lungs and the respiratory tract
  
• 
  Rheumatology, devoted to the diagnosis and therapy of rheumatic diseases
  
• 
  Sleep medicine
  
• 
  Sports medicine
  
• 
  Transplant hepatology
  

American College of Osteopathic Internists