B01.11

Varicella encephalitis and encephalomyelitis

Billable / specific

B01.11 is a billable, specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes in FY2027.

Inclusion terms

Applicable to

  • Postchickenpox encephalitis 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 and encephalomyelitis
  • Encephalitis, postchickenpox
  • Encephalitis, postvaricella
  • Encephalomyelitis, postchickenpox
  • Encephalomyelitis, postvaricella
  • Varicella, with encephalitis
  • Varicella, with encephalomyelitis

Parent code

  • B01.1Varicella encephalitis, myelitis and encephalomyelitisHeader

Related codes

  • B01.12Varicella myelitisBillable

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