ICD-10-CM · Chapter 1 · A00-B99
A77 Spotted fever [tick-borne rickettsioses]
Subcodes
Each subcode links to a detail page with full clinical annotations.
| Code | Description | Billable |
|---|---|---|
| A77..0 | Spotted fever due to Rickettsia rickettsii | Yes |
| A77..1 | Spotted fever due to Rickettsia conorii | Yes |
| A77..2 | Spotted fever due to Rickettsia siberica | Yes |
| A77..3 | Spotted fever due to Rickettsia australis | Yes |
| A77..4 | Ehrlichiosis | No |
| A77..40 | Ehrlichiosis, unspecified | Yes |
| A77..41 | Ehrlichiosis chaffeensis [E. chaffeensis] | Yes |
| A77..49 | Other ehrlichiosis | Yes |
| A77..8 | Other spotted fevers | Yes |
| A77..9 | Spotted fever, unspecified | Yes |
Last reviewed: September 2026