AutoICD API

B00.4

Billable

Herpesviral encephalitis

Herpesviral encephalitis

Status

Billable / Specific

Block

B00-B09

Parent Code

B00

ICD-11 Mapping

1 equivalent

Coding Notes

Inclusion Terms

Alternative clinical terms for this condition

  • Herpesviral meningoencephalitis
  • Simian B disease

Includes

Conditions included under this code

  • diseases generally recognized as communicable or transmissible

Excludes 1

Codes that cannot be used together with this code (mutual exclusion)

Excludes 2

Conditions not included here, but the patient may have both

Use Additional Code

Additional codes that should follow this code

Related Codes(8)
B00.0

Eczema herpeticum

BillableB00.1

Herpesviral vesicular dermatitis

BillableB00.2

Herpesviral gingivostomatitis and pharyngotonsillitis

BillableB00.3

Herpesviral meningitis

BillableB00.5

Herpesviral ocular disease

B00.7

Disseminated herpesviral disease

BillableB00.8

Other forms of herpesviral infections

B00.9

Herpesviral infection, unspecified

Billable
ICD-11 Equivalents(1)

ICD-11 Equivalents

View full mapping

Corresponding ICD-11 codes from the WHO crosswalk mapping

1F00.21Encephalitis due to herpes simplex virusequivalentPrimary
Also Known As / Clinical Terms(140)

SNOMED CT

UMLS

Clinical Terms

  • Encephalitis caused by human herpes simplex virus
  • Herpes simiae infection
  • Herpes simplex meningitis
  • Herpes encephalitis
  • Encephalitis, Herpetic
  • Herpetic acute necrotising encephalitis
  • Herpes simplex 2
  • Viral meningoencephalitis
  • Acute necrotizing viral encephalitis
  • Herpesviral meningitis
  • Acute viral encephalitis
  • ENCEPH HERPES SIMPLEX
  • Herpesviral meningoencephalitis
  • hsv encephalitis
  • B virus infection
  • HERPETIC ENCEPH
  • encephalitis herpes
  • Herpes simplex 1
  • Cercopithecine herpesvirus 1 disease
  • Herpes simplex 1 infection
  • Herpes simplex 2 infection
  • Herpes simiae encephalitis
  • Herpetic meningoencephalitis
  • Meningitis due to herpes simplex virus
  • encephalitis hsv
  • Simian B disease (disorder)
  • Encephalitis caused by Herpes simplex virus 1
  • Herpesvirus B infection
  • Acute inclusion body encephalitis
  • Herpes simplex type 2 encephalitis
  • Meningoencephalitis caused by virus
  • Simian B encephalomyelitis
  • Herpes simplex type 2 infection
  • Dementia associated with viral encephalitis
  • Acute necrotizing encephalitis
  • Meningitis caused by Human herpes simplex virus
  • Acute necrotising encephalitis
  • herpes simplex encephalitis
  • Herpetic acute necrotizing encephalitis
  • Simian B disease
  • Herpes Simplex Encephalitides
  • Encephalitides, Herpes Simplex
  • Encephalitis, Herpes Simplex
  • Herpes simplex type 1 infection
  • Dementia due to herpes encephalitis
  • Encephalitis caused by Herpesviridae
  • Acute encephalitis
  • Encephalitis caused by Herpesvirus
  • Meningoencephalitis caused by human herpes simplex virus
  • HERPES SIMPLEX ENCEPH
  • B Virus Infections
  • Infections, B Virus
  • Herpetic Encephalitis
  • HERPES ENCEPH
  • Infection, B Virus
  • Encephalitides, Herpetic
  • Encephalitis, Herpes
  • Herpetic Encephalitides
  • Encephalitis caused by Herpesvirus (disorder)
  • Encephalitis caused by Herpes simplex virus 2
  • Herpes simplex type 1 encephalitis
  • Acute necrotising viral encephalitis
Frequently Asked Questions
What is the ICD-10 code for herpesviral encephalitis?

The ICD-10-CM code for herpesviral encephalitis is B00.4. The full clinical description is "Herpesviral encephalitis". B00.4 is a billable/specific code that can be used on insurance claims and medical billing.

What does ICD-10 code B00.4 mean?

ICD-10-CM code B00.4 represents “Herpesviral encephalitis”. It is classified under Chapter 1: Certain Infectious and Parasitic Diseases and is a billable/specific code that can be used on a claim.

Is B00.4 a billable code?

Yes, B00.4 is a billable/specific ICD-10-CM code and can be used to indicate a diagnosis on a medical claim.

What chapter is B00.4 in?

B00.4 is in Chapter 1: Certain Infectious and Parasitic Diseases (codes A00-B99).

What codes cannot be used with B00.4?

B00.4 has Excludes1 notes indicating codes that cannot be used together with it, including: certain localized infections - see body system-related chapters; congenital herpesviral infections (P35.2); herpesviral encephalitis due to herpesvirus 6 and 7 (B10.01, B10.09); and 1 more.

Are additional codes required with B00.4?

Yes, when using B00.4, also report: resistance to antimicrobial drugs (Z16.-).

What SNOMED CT codes does B00.4 map to?

B00.4 maps to 18 SNOMED CT concepts: 822021000000103, 230161000, 111897007, 36420002, 698726009, and 13 more. SNOMED CT is a clinical terminology used in electronic health records.

What are the UMLS CUIs for B00.4?

B00.4 is linked to 3 UMLS Concept Unique Identifiers: C0037140, C0276226, C2900473. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.

How does B00.4 relate to ICF functioning codes?

ICF (International Classification of Functioning, Disability and Health) codes describe how conditions like herpesviral encephalitis affect a person's functioning — body functions, activities, participation, and environmental factors. AutoICD provides ICF Core Sets for 12+ conditions and can map clinical text to ICF categories automatically. Browse the ICF directory to explore functioning codes.

What is the ICD-11 equivalent of B00.4?

B00.4 maps to the ICD-11 code: 1F00.21 (Encephalitis due to herpes simplex virus).

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Includes SNOMED Clinical Terms® (SNOMED CT®) used by permission of SNOMED International. Includes content from the UMLS Metathesaurus, courtesy of the U.S. National Library of Medicine.