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ICD-10-CM category

A77: Spotted fever [tick-borne rickettsioses]

10 subcodes · 9 billable · Look up any code with the ICD-10 search

Codes under A77 (Spotted fever [tick-borne rickettsioses]). A ✓ marks a billable (fully specified) code; category codes without a ✓ are not billable on their own.

CodeDescriptionBillable
A77.0Spotted fever due to Rickettsia rickettsii✓
A77.1Spotted fever due to Rickettsia conorii✓
A77.2Spotted fever due to Rickettsia siberica✓
A77.3Spotted fever due to Rickettsia australis✓
A77.4Ehrlichiosis—
A77.8Other spotted fevers✓
A77.9Spotted fever, unspecified✓
A77.40Ehrlichiosis, unspecified✓
A77.41Ehrlichiosis chaffeensis [E. chaffeensis]✓
A77.49Other ehrlichiosis✓

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Informational only, not coding or medical advice. Verify against the official ICD-10-CM (FY2026) and your payer's guidelines.

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