A77 Spotted fever [tick-borne rickettsioses]
ICD-10-CM category A77 sits in Chapter 1 (Certain infectious and parasitic diseases, A00-B99). It contains 9 billable codes for FY2027, effective October 1, 2026 to September 30, 2027. Always code to the most specific code available: a code with more characters that describes the diagnosis more precisely takes priority over a shorter one.
Subcategories
A77.4 Ehrlichiosis
Billable codes in A77
| Code | Description |
|---|---|
A77.0 | Spotted fever due to Rickettsia rickettsii |
A77.1 | Spotted fever due to Rickettsia conorii |
A77.2 | Spotted fever due to Rickettsia siberica |
A77.3 | Spotted fever due to Rickettsia australis |
A77.40 | Ehrlichiosis, unspecified |
A77.41 | Ehrlichiosis chaffeensis [E. chaffeensis] |
A77.49 | Other ehrlichiosis |
A77.8 | Other spotted fevers |
A77.9 | Spotted fever, unspecified |
Search within ICD-10-CM for A77 and related codes
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