2024 ICD-10-CM Diagnosis Code A84.81
Powassan virus disease
- ICD-10-CM Code:
- A84.81
- ICD-10 Code for:
- Powassan virus disease
- Is Billable?
- Yes - Valid for Submission
- Chronic Condition Indicator: [1]
- Not chronic
- Code Navigator:
A84.81 is a billable diagnosis code used to specify a medical diagnosis of powassan virus disease. The code is valid during the current fiscal year for the submission of HIPAA-covered transactions from October 01, 2023 through September 30, 2024.
Approximate Synonyms
The following clinical terms are approximate synonyms or lay terms that might be used to identify the correct diagnosis code:
- Neuroinvasive Powassan encephalitis virus infection
- Powassan encephalitis virus infection
- Powassan virus non-neuroinvasive disease
Clinical Classification
| Clinical Category | CCSR Category Code | Inpatient Default CCSR | Outpatient Default CCSR |
|---|---|---|---|
| Encephalitis | NVS002 | Y - Yes, default inpatient assignment for principal diagnosis or first-listed diagnosis. | Y - Yes, default outpatient assignment for principal diagnosis or first-listed diagnosis. |
| Viral infection | INF008 | N - Not default inpatient assignment for principal diagnosis or first-listed diagnosis. | N - Not default outpatient assignment for principal diagnosis or first-listed diagnosis. |
Index to Diseases and Injuries References
The following annotation back-references for this diagnosis code are found in the injuries and diseases index. The Index to Diseases and Injuries is an alphabetical listing of medical terms, with each term mapped to one or more ICD-10-CM code(s).
- - Disease, diseased - See Also: Syndrome;
Replacement Code
A8481 replaces the following previously assigned ICD-10-CM code(s):
- A84.8 - Other tick-borne viral encephalitis
Code History
- FY 2024 - No Change, effective from 10/1/2023 through 9/30/2024
- FY 2023 - No Change, effective from 10/1/2022 through 9/30/2023
- FY 2022 - No Change, effective from 10/1/2021 through 9/30/2022
- FY 2021 - Code Added, effective from 10/1/2020 through 9/30/2021
Footnotes
[1] Not chronic - A diagnosis code that does not fit the criteria for chronic condition (duration, ongoing medical treatment, and limitations) is considered not chronic. Some codes designated as not chronic are acute conditions. Other diagnosis codes that indicate a possible chronic condition, but for which the duration of the illness is not specified in the code description (i.e., we do not know the condition has lasted 12 months or longer) also are considered not chronic.