Infectious mononucleosis digital illustration

Infectious mononucleosis Save

ICD-10 code: B27

Chapter: Certain infectious and parasitic diseases

Infectious Mononucleosis: Causes, Symptoms, and Treatment

Infectious mononucleosis, commonly known as mono, is a viral infection caused by the Epstein-Barr virus (EBV). It is a contagious disease that spreads through contact with infected saliva, mucus, or blood. Mono is most commonly seen in teenagers and young adults and can cause significant fatigue and other symptoms.

Symptoms of Mono
  1. Fatigue: The most common symptom of mono is fatigue. It can be severe and last for weeks or months.
  2. Sore throat: A sore throat is another common symptom of mono. It can be accompanied by swollen tonsils and lymph nodes.
  3. Fever: Mono can also cause a fever, which can range from mild to high.
  4. Body aches: Some people with mono experience body aches and headaches.
  5. Rash: A rash may develop in some people with mono, particularly if they take antibiotics.
Treatment for Mono

There is no specific treatment for mono, and the virus will typically run its course within a few weeks to a few months. However, there are some things that can be done to help manage the symptoms:

  1. Rest: Rest is essential when recovering from mono. It is important to avoid any strenuous activities that can lead to fatigue.
  2. Hydration: Staying hydrated is important, especially if you have a fever or are experiencing sweating or vomiting.
  3. Pain relief: Over-the-counter pain relievers, such as acetaminophen or ibuprofen, can help manage symptoms such as fever, sore throat, and body aches.
  4. Avoiding contact sports: It is important to avoid contact sports for at least a month after being diagnosed with mono to avoid the risk of ruptured spleen.

If you suspect you have mono, it is important to see a healthcare provider for a diagnosis. They can help manage your symptoms and provide guidance on how to prevent the spread of the virus to others.


Infectious mononucleosis is a viral infection that can cause significant fatigue and other symptoms. While there is no specific treatment for mono, managing symptoms with rest, hydration, and pain relief can help. It is important to seek medical attention if you suspect you have mono to prevent the spread of the virus to others.

Diagnosis Codes for Infectious mononucleosis | B27

Not Available