Chicken pox-CDCreport

Chicken pox

ICD-10 B01: Chicken Pox
ICD-10 B02: Herpes Zoster

3.3.1 Identification

Clinical features

Varicella (chickenpox): Chickenpox generally presents with a low-grade fever, malaise and a rash. The rash is firstly maculopapular then becomes vesicular (blistered) and progresses to crusted lesions over about five days. Lesions appear in three or four crops. They are most numerous on the trunk and less so on the face, scalp, limbs and mucous membranes of the mouth. Some cases (about 5%) are subclinical or exceedingly mild in nature. Adults tend to suffer with more severe disease than children. Rarely, the disease may be fatal. Complications include secondary bacterial infection of the skin lesions, primary varicella pneumonia, aseptic meningitis, encephalitis and Reye’s syndrome (acute encephalopathy with fatty infiltration and dysfunction of the liver). Newborns and immunosuppressed patients are at greatly increased risk of severe chickenpox.
Clinical features

Varicella (chickenpox): Chickenpox generally presents with a low-grade fever, malaise and a rash. The rash is firstly maculopapular then becomes vesicular (blistered) and progresses to crusted lesions over about five days. Lesions appear in three or four crops. They are most numerous on the trunk and less so on the face, scalp, limbs and mucous membranes of the mouth. Some cases (about 5%) are subclinical or exceedingly mild in nature. Adults tend to suffer with more severe disease than children. Rarely, the disease may be fatal. Complications include secondary bacterial infection of the skin lesions, primary varicella pneumonia, aseptic meningitis, encephalitis and Reye’s syndrome (acute encephalopathy with fatty infiltration and dysfunction of the liver). Newborns and immunosuppressed patients are at greatly increased risk of severe chickenpox.