ICD-10 · PDGM grouping
A92 Other mosquito-borne viral fevers
All 11 codes in the A92 family, with the PDGM clinical group, comorbidity subgroup and primary-position rule CMS assigns, read from the CMS grouper crosswalk v07.2.26 and the CDC FY2027 code file.
Codes in family
11
Can lead a claim
11
Cannot lead a claim
0
What CMS assigns to A92
All 11 codes group to MMTA - Infectious Disease, Neoplasms, and Blood-Forming Diseases (9) and Neuro Rehabilitation (2). None of the 11 is assigned a comorbidity subgroup. Every code can lead a claim.
Every code in A92
Descriptions are CDC’s FY2027 wording; where CMS’s grouper abbreviates one, its form is shown beneath.
| Code | Description | Primary position | Clinical group | Comorbidity subgroup |
|---|---|---|---|---|
| A92.0 | Chikungunya virus disease | Can lead a claim | K | None |
| A92.1 | O'nyong-nyong fever | Can lead a claim | K | None |
| A92.2 | Venezuelan equine fever | Can lead a claim | K | None |
| A92.3 West Nile virus infection | ||||
| A92.30 | West Nile virus infection, unspecified | Can lead a claim | K | None |
| A92.31 | West Nile virus infection with encephalitis | Can lead a claim | B | None |
| A92.32 | West Nile virus infection with other neurologic manifestationCMS: West Nile virus infection with oth neurologic manifestation | Can lead a claim | B | None |
| A92.39 | West Nile virus infection with other complications | Can lead a claim | K | None |
| A92.4 | Rift Valley fever | Can lead a claim | K | None |
| A92.5 | Zika virus disease | Can lead a claim | K | None |
| A92.8 | Other specified mosquito-borne viral fevers | Can lead a claim | K | None |
| A92.9 | Mosquito-borne viral fever, unspecified | Can lead a claim | K | None |
Sources: CMS HH PPS Grouper Software v07.2.26, effective 2026-10-01, for the clinical group, comorbidity subgroup, code-first conventions and primary-position flags; CDC NCHS ICD-10-CM FY2027 code descriptions for the family title and code wording. This is the crosswalk Medicare runs a claim through. Grouping also depends on admission source, timing, the OASIS functional items and the rest of the diagnosis list.
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