icd ICD description main_or_sensitivity_analysis B01 Varicella [chickenpox] main B01.0 Varicella meningitis main B01.1 Varicella encephalitis main B01.2 Varicella pneumonia main B01.8 Varicella with other complications main B01.9 Varicella without complication main B02 Herpes zoster main B02.0 Zoster encephalitis main B02.1 Zoster meningitus main B02.3 Zoster ocular disease main B02.7 Disseminated zoster main B02.8 Zoster with other complications main B02.9 Zoster without complications main T88.1 "Other complications following immunization, not elsewhere classified" main G04.0 Acute disseminated encephalitis sensitivity R21 Rash and other nonspecific skin eruption sensitivity