B02.0 Zoster encephalitis

Billable ICD-10-CM code, FY2026. Acts as a Complication or Comorbidity (CC) as a secondary diagnosis.

Applicable to

• Zoster meningoencephalitis

Applies from B02 Zoster [herpes zoster]

Includes

• shingles
• zona

MS-DRG index

Defines the logic of DRG(s) 073-074 in MDC 01.

Approximate ICD-9-CM (GEMs)

• 053.19 Herpes zoster with other nervous system complications (approximate)

Code annotations containing back-references to B02.0

Back-references to B02.0

• Type 1 Excludes: A85 Other viral encephalitis, not elsewhere classified ("encephalitis due to zoster (B02.0)")
• Type 1 Excludes: G05 Encephalitis, myelitis and encephalomyelitis in diseases classified elsewhere ("zoster encephalitis, myelitis and encephalomyelitis (B02.0)")

Back-references to B02

• Type 2 Excludes: B10 Other human herpesviruses ("herpes zoster (B02.-)")
• Type 2 Excludes: B10 Other human herpesviruses ("human herpesvirus 3 (B01.-, B02.-)")
• Type 2 Excludes: B10 Other human herpesviruses ("zoster (B02.-)")
• Code First: H67 Otitis media in diseases classified elsewhere ("viral disease NEC (B00-B34)")

Diagnosis Index entries for B02.0

• Encephalitis (chronic) (hemorrhagic) (idiopathic) (nonepidemic) (spurious) (subacute) › herpes zoster
• Encephalitis (chronic) (hemorrhagic) (idiopathic) (nonepidemic) (spurious) (subacute) › in (due to) › zoster
• Herpes, herpesvirus, herpetic › zoster › encephalitis

Nearby codes

• B02 Zoster [herpes zoster]
• B02.0 Zoster encephalitis (this code)
• B02.1 Zoster meningitis
• B02.2 Zoster with other nervous system involvement
• B02.21 Postherpetic geniculate ganglionitis
• B02.22 Postherpetic trigeminal neuralgia
• B02.23 Postherpetic polyneuropathy