A83.1
BillableWestern equine encephalitis
Western equine encephalitis
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
- carrier or suspected carrier of infectious disease (Z22.-)
- infectious and parasitic diseases complicating pregnancy, childbirth and the puerperium (O98.-)
- infectious and parasitic diseases specific to the perinatal period (P35-P39)
- influenza and other acute respiratory infections (J00-J22)
- Venezuelan equine encephalitis (A92.2)
- West Nile fever (A92.3-)
- West Nile virus (A92.3-)
Use Additional Code
Additional codes that should follow this code
- code to identify resistance to antimicrobial drugs (Z16.-)
Also Known As / Clinical Terms
SNOMED CT
- Encephalitis, Western equine47523006
- WEE - western equine encephalitis47523006
- Western equine encephalitis47523006
- Western equine encephalomyelitis47523006
- Neuroinvasive Western equine encephalitis virus infection422498005
- Non-neuroinvasive Western equine encephalitis virus infection423592001
- Western equine encephalitis virus infection, non-neuroinvasive423592001
- Alphavirus encephalitis721766005
- Encephalitis caused by Alphavirus721766005
- Invasive viral infection1300187005
- Invasive viral infectious disease1300187005
UMLS
- ENCEPH WESTERN EQUINEC0153064
- Encephalitis western equineC0153064
- Encephalitis, Western EquineC0153064
- Encephalitis, Western equineC0153064
- Encephalomyelitis, Western EquineC0153064
- Equine Encephalitis, WesternC0153064
- WEE - western equine encephalitisC0153064
- WESTERN EQUINE ENCEPHC0153064
- Western Equine EncephalitisC0153064
- Western Equine EncephalomyelitisC0153064
- Western equine encephalitisC0153064
- Western equine encephalitis (disorder)C0153064
- Western equine encephalitis virus infectionC0153064
- Western equine encephalomyelitisC0153064
- western equine encephalitisC0153064
- western equine encephalomyelitisC0153064
Frequently Asked Questions
What is ICD-10 code A83.1?
ICD-10-CM code A83.1 represents "Western equine encephalitis". It is a billable/specific code that can be used on a claim.
Is A83.1 a billable code?
Yes, A83.1 is a billable/specific ICD-10-CM code and can be used to indicate a diagnosis on a medical claim.
What chapter is A83.1 in?
A83.1 is in Chapter 1: Certain Infectious and Parasitic Diseases (codes A00-B99).
What codes cannot be used with A83.1?
A83.1 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 A83.1?
Yes, when using A83.1 you should also code: code to identify resistance to antimicrobial drugs (Z16.-).
What SNOMED CT codes does A83.1 map to?
A83.1 maps to 5 SNOMED CT concepts: 721766005, 47523006, 1300187005, 422498005, 423592001. SNOMED CT is a clinical terminology used in electronic health records.
What are the UMLS CUIs for A83.1?
A83.1 is linked to 1 UMLS Concept Unique Identifier: C0153064. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.
Automate ICD-10 Coding With AI
Send clinical text to the AutoICD API and get back structured ICD-10 codes with confidence scores. Integrates into any EHR or billing system in minutes.
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.