ICD-10 Diagnosis Code B02.0

Zoster encephalitis

Diagnosis Code B02.0

ICD-10: B02.0
Short Description: Zoster encephalitis
Long Description: Zoster encephalitis
This is the 2017 version of the ICD-10-CM diagnosis code B02.0

Code Classification
  • Certain infectious and parasitic diseases
    • Viral infections characterized by skin and mucous membrane lesions (B00-B09)
      • Zoster [herpes zoster] (B02)

Information for Patients


Encephalitis is an inflammation of the brain. Usually the cause is a viral infection, but bacteria can also cause it. It can be mild or severe. Most cases are mild. You may have flu-like symptoms. With a mild case, you may just need rest, plenty of fluids, and a pain reliever.

Severe cases need immediate treatment. Symptoms of severe cases include

  • Severe headache
  • Sudden fever
  • Drowsiness
  • Vomiting
  • Confusion
  • Seizures

In babies, additional symptoms may include constant crying, poor feeding, body stiffness, and bulging in the soft spots of the skull.

Severe cases may require a stay in the hospital. Treatments include oral and intravenous (IV) medicines to reduce inflammation and treat infection. Patients with breathing difficulties may need artificial respiration. Some people may need physical, speech, and occupational therapy once the illness is under control.

NIH: National Institute of Neurological Disorders and Stroke

  • Cerebral spinal fluid (CSF) collection
  • CSF analysis
  • Encephalitis
  • Japanese Encephalitis Vaccine: What You Need to Know (Centers for Disease Control and Prevention)
  • Subacute sclerosing panencephalitis

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Also called: Herpes zoster, Postherpetic neuralgia

Shingles is a disease caused by the varicella-zoster virus - the same virus that causes chickenpox. After you have chickenpox, the virus stays in your body. It may not cause problems for many years. As you get older, the virus may reappear as shingles. Although it is most common in people over age 50, anyone who has had chickenpox is at risk.

You can't catch shingles from someone who has it. However, if you have a shingles rash, you can pass the virus to someone who has never had chickenpox. This would usually be a child, who could get chickenpox instead of shingles. The virus spreads through direct contact with the rash, and cannot spread through the air.

Early signs of shingles include burning or shooting pain and tingling or itching, usually on one side of the body or face. The pain can be mild to severe. Rashes or blisters appear anywhere from one to 14 days later. If shingles appears on your face, it may affect your vision or hearing. The pain of shingles may last for weeks, months, or even years after the blisters have healed.

There is no cure for shingles. Early treatment with medicines that fight the virus may help. These medicines may also help prevent lingering pain.

A vaccine may prevent shingles or lessen its effects. The vaccine is recommended for people 60 or over. In some cases doctors may give it to people ages 50 to 59.

NIH: National Institute of Allergy and Infectious Diseases

  • Post-herpetic neuralgia - aftercare
  • Ramsay Hunt syndrome
  • Shingles
  • Shingles - aftercare
  • Shingles Vaccine: What You Need to Know (Centers for Disease Control and Prevention)

[Read More]
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