Current
A78 — Q fever
Part of Chapter 1: Certain infectious and parasitic diseases , block Rickettsioses (A75-A79) .
Official Notes
Inclusion Terms
Infection due to Coxiella burnetii
Inclusion Terms
Nine Mile fever
Inclusion Terms
Quadrilateral fever
Child Codes
A78 has no child codes in the FY 2027 release -- it is used on its own.
Referenced By
Official notes on these codes cite A78.
FY 2027 effective October 1, 2026 · CDC NCHS and CMS