ICD-10-CM 2027 diagnosis code

A93Other arthropod-borne viral fevers, not elsewhere classified

Not billable — use a more specific code

A93 is a header code, so it can't be reported by itself. Choose one of the 4 more specific codes beneath it.

Code unchanged since ICD-10-CM took effect on October 1, 2015. Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data

About A93

A93 is the ICD-10-CM diagnosis code for other arthropod-borne viral fevers, not elsewhere classified. It belongs to block A90-A99 (arthropod-borne viral fevers and viral hemorrhagic fevers) and chapter 1 (certain infectious and parasitic diseases). It is a header code, so it can't be reported by itself; one of its 4 subcodes must be used instead.

To report this condition, pick the subcode that matches the documentation: A93.0 (disease), A93.1 (fever), A93.2 (fever) and A93.8 (fevers).

It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.

Specific codes under A93

Notes that apply from higher levels

Instructions written at a parent level also apply to A93.

Broader instructions also apply from Chapter 1: Certain infectious and parasitic diseases.

Code history

2016
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2021
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2023
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2025
2026
2027

FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
No changes since FY2016.

Common questions about A93

Is A93 billable?: No. A93 is a header code. Report one of its more specific subcodes instead.