B01.1

Varicella encephalitis, myelitis and encephalomyelitis

Non-billable header

B01.1 is a non-billable header code. Use one of the more specific codes below.

Inclusion terms

Applicable to

  • Postchickenpox encephalitis, myelitis and encephalomyelitis

Includes (from B01)

  • diseases generally recognized as communicable or transmissible

Excludes2

Not included here — may be reported together when both conditions exist.

  • carrier or suspected carrier of infectious disease (Z22.-) (from B01)
  • certain localized infections - see body system-related chapters (from B01)
  • infectious and parasitic diseases complicating pregnancy, childbirth and the puerperium (O98.-) (from B01)
  • infectious and parasitic diseases specific to the perinatal period (P35-P39) (from B01)
  • influenza and other acute respiratory infections (J00-J22) (from B01)

Use additional code

Add a code to identify the following, if applicable.

  • code to identify resistance to antimicrobial drugs (Z16.-) (from B01)

Also known as

  • Postchickenpox encephalitis, myelitis and encephalomyelitis

Parent code

  • B01Varicella [chickenpox]Header

More specific codes B01.1

  • B01.11Varicella encephalitis and encephalomyelitisBillable
  • B01.12Varicella myelitisBillable

Related codes

  • B01.0Varicella meningitisBillable
  • B01.2Varicella pneumoniaBillable
  • B01.8Varicella with other complicationsHeader
  • B01.9Varicella without complicationBillable

Browse