ICD-10 Diagnosis Code A40.0

Sepsis due to streptococcus, group A

Diagnosis Code A40.0

ICD-10: A40.0
Short Description: Sepsis due to streptococcus, group A
Long Description: Sepsis due to streptococcus, group A
This is the 2017 version of the ICD-10-CM diagnosis code A40.0

Code Classification
  • Certain infectious and parasitic diseases
    • Other bacterial diseases (A30-A49)
      • Streptococcal sepsis (A40)

Information for Medical Professionals

Diagnostic Related Groups
The diagnosis code A40.0 is grouped in the following Diagnostic Related Group(s) (MS-DRG v33.0)


Convert to ICD-9 Additional informationCallout TooltipGeneral Equivalence Map
The ICD-10 and ICD-9 GEMs are used to facilitate linking between the diagnosis codes in ICD-9-CM and the new ICD-10-CM code set. The GEMs are the raw material from which providers, health information vendors and payers can derive specific applied mappings to meet their needs.

  • Sepsis caused by Streptococcus
  • Sepsis caused by Streptococcus pyogenes
  • Septic shock co-occurrent with acute organ dysfunction caused by Streptococcus
  • Septic shock co-occurrent with acute organ dysfunction due to Gram-positive coccus
  • Septic shock co-occurrent with acute organ dysfunction due to Group A streptococcus
  • Streptococcus pyogenes infection

Information for Patients


Sepsis is a serious illness. It happens when your body has an overwhelming immune response to a bacterial infection. The chemicals released into the blood to fight the infection trigger widespread inflammation. This leads to blood clots and leaky blood vessels. They cause poor blood flow, which deprives your body's organs of nutrients and oxygen. In severe cases, one or more organs fail. In the worst cases, blood pressure drops and the heart weakens, leading to septic shock.

Anyone can get sepsis, but the risk is higher in

  • People with weakened immune systems
  • Infants and children
  • The elderly
  • People with chronic illnesses, such as diabetes, AIDS, cancer, and kidney or liver disease
  • People suffering from a severe burn or physical trauma

Common symptoms of sepsis are fever, chills, rapid breathing and heart rate, rash, confusion, and disorientation. Doctors diagnose sepsis using a blood test to see if the number of white blood cells is abnormal. They also do lab tests that check for signs of infection.

People with sepsis are usually treated in hospital intensive care units. Doctors try to treat the infection, sustain the vital organs, and prevent a drop in blood pressure. Many patients receive oxygen and intravenous (IV) fluids. Other types of treatment, such as respirators or kidney dialysis, may be necessary. Sometimes, surgery is needed to clear up an infection.

NIH: National Institute of General Medical Sciences

  • Blood culture
  • Group B streptococcal septicemia of the newborn
  • Neonatal sepsis
  • Sepsis
  • Septic shock
  • Septicemia
  • Toxic shock syndrome

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Streptococcal Infections

Also called: Strep

Strep is short for Streptococcus, a type of bacteria. There are two types: group A and group B.

Group A strep causes

  • Strep throat - a sore, red throat, sometimes with white spots on the tonsils
  • Scarlet fever - an illness that follows strep throat. It causes a red rash on the body.
  • Impetigo - a skin infection
  • Toxic shock syndrome
  • Cellulitis and necrotizing fasciitis (flesh-eating disease)

Group B strep can cause blood infections, pneumonia and meningitis in newborns. A screening test during pregnancy can tell if you have it. If you do, I.V. antibiotics during labor can save your baby's life. Adults can also get group B strep infections, especially if they are elderly or already have health problems. Strep B can cause urinary tract infections, blood infections, skin infections and pneumonia in adults.

Antibiotics are used to treat strep infections.

NIH: National Institute of Allergy and Infectious Diseases

  • Ecthyma
  • Erysipelas
  • Group B streptococcal septicemia of the newborn
  • Group B streptococcus - pregnancy
  • Perianal streptococcal cellulitis
  • Rheumatic fever
  • Scarlet fever
  • Strep throat
  • Streptococcal screen
  • Throat swab culture
  • Toxic shock syndrome

[Read More]
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