AutoICD API

A83.3

Billable

St Louis encephalitis

St Louis encephalitis

Status

Billable / Specific

Block

A80-A89

Parent Code

A83

ICD-11 Mapping

1 equivalent

Coding Notes

Includes

Conditions included under this code

  • diseases generally recognized as communicable or transmissible
  • mosquito-borne viral meningoencephalitis

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)
A83.0

Japanese encephalitis

BillableA83.1

Western equine encephalitis

BillableA83.2

Eastern equine encephalitis

BillableA83.4

Australian encephalitis

BillableA83.5

California encephalitis

BillableA83.6

Rocio virus disease

BillableA83.8

Other mosquito-borne viral encephalitis

BillableA83.9

Mosquito-borne viral encephalitis, unspecified

Billable
ICD-11 Equivalents(1)

ICD-11 Equivalents

View full mapping

Corresponding ICD-11 codes from the WHO crosswalk mapping

1C86St Louis encephalitisequivalentPrimary
Also Known As / Clinical Terms(71)

SNOMED CT

UMLS

Clinical Terms

  • Encephalitis, Saint Louis
  • St. Louis encephalitis
  • Invasive viral infectious disease
  • Invasive viral infection
  • St. Louis encephalitis virus infection
  • ST LOUIS ENCEPH
  • St. Louis encephalitis virus neuroinvasive disease
  • TYPE C LETHARGIC ENCEPH
  • Lethargic Encephalitis, Type C
  • St. Louis encephalitis virus non-neuroinvasive disease
  • Disease caused by Flaviviridae
  • SAINT LOUIS ENCEPH
  • Saint Louis encephalitis virus infection
  • ENCEPH VIRAL ST LOUIS
  • LETHARGIC ENCEPH TYPE C
  • Neuroinvasive St. Louis encephalitis virus infection
  • Encephalitis, Viral, St. Louis
  • ENCEPH ST LOUIS
  • Arbovirus encephalitis
  • St. Louis Viral Encephalitis
  • Encephalitis, St. Louis
  • Type C Lethargic Encephalitis
  • Saint Louis Encephalitis
  • St. Louis viral disease
  • Arboviral encephalitis
  • Saint Louis encephalitis virus infection (disorder)
  • Neuroinvasive Saint Louis encephalitis virus infection (disorder)
  • Neuroinvasive Saint Louis encephalitis virus infection
  • ENCEPH SAINT LOUIS
  • ST LOUIS VIRAL ENCEPH
Frequently Asked Questions
What is the ICD-10 code for st louis encephalitis?

The ICD-10-CM code for st louis encephalitis is A83.3. The full clinical description is "St Louis encephalitis". A83.3 is a billable/specific code that can be used on insurance claims and medical billing.

What does ICD-10 code A83.3 mean?

ICD-10-CM code A83.3 represents “St Louis 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 A83.3 a billable code?

Yes, A83.3 is a billable/specific ICD-10-CM code and can be used to indicate a diagnosis on a medical claim.

What chapter is A83.3 in?

A83.3 is in Chapter 1: Certain Infectious and Parasitic Diseases (codes A00-B99).

What codes cannot be used with A83.3?

A83.3 has Excludes1 notes indicating codes that cannot be used together with it, including: certain localized infections - see body system-related chapters; postpolio syndrome (G14); sequelae of poliomyelitis (B91); and 1 more.

Are additional codes required with A83.3?

Yes, when using A83.3, also report: resistance to antimicrobial drugs (Z16.-).

What SNOMED CT codes does A83.3 map to?

A83.3 maps to 6 SNOMED CT concepts: 192687008, 414014001, 1300187005, 417607009, 417192005, and 1 more. SNOMED CT is a clinical terminology used in electronic health records.

What are the UMLS CUIs for A83.3?

A83.3 is linked to 1 UMLS Concept Unique Identifier: C0014060. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.

How does A83.3 relate to ICF functioning codes?

ICF (International Classification of Functioning, Disability and Health) codes describe how conditions like st louis 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 A83.3?

A83.3 maps to the ICD-11 code: 1C86 (St Louis encephalitis).

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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.