code	description
B01.0	Varicella meningitis (G02.0*)
B01.1	Varicella encephalitis (G05.1*)
B01.11	Postchickenpox encephalitis
B01.12	Varicella encephalomyelitis
B01.2	Varicella pneumonia (J17.1*)
B01.8	Varicella with other complications
B01.81 	Varicella keratitis
B01.89 	Other varicella complications
B01.9	Varicella without complication