ICD-10 Diagnosis Code B27.9

Infectious mononucleosis, unspecified

Diagnosis Code B27.9

ICD-10: B27.9
Short Description: Infectious mononucleosis, unspecified
Long Description: Infectious mononucleosis, unspecified
This is the 2017 version of the ICD-10-CM diagnosis code B27.9

Code Classification
  • Certain infectious and parasitic diseases
    • Other viral diseases (B25-B34)
      • Infectious mononucleosis (B27)

Information for Patients

Infectious Mononucleosis

Also called: Glandular fever, Kissing disease, Mono, Mononucleosis

Infectious mononucleosis, or "mono", is an infection usually caused by the Epstein-Barr virus. The virus spreads through saliva, which is why it's sometimes called "kissing disease." Mono occurs most often in teens and young adults. However, you can get it at any age. Symptoms of mono include

  • Fever
  • Sore throat
  • Swollen lymph glands

Sometimes you may also have a swollen spleen. Serious problems are rare.

A blood test can show if you have mono. Most people get better in two to four weeks. However, you may feel tired for a few months afterward. Treatment focuses on helping symptoms and includes medicines for pain and fever, warm salt water gargles and plenty of rest and fluids.

  • Epstein-Barr virus test
  • Mononucleosis
  • Mononucleosis spot test

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