A75-A79: Rickettsioses
ICD-10-CM 2027 block A75-A79 in chapter 1 (Certain infectious and parasitic diseases) has 4 categories.
- A75 – Typhus fever 5 billable codes
- A77 – Spotted fever [tick-borne rickettsioses] 9 billable codes
- A78 – Q fever Billable code
- A79 – Other rickettsioses 6 billable codes