Q fever (A78) ICD-10-CM
The A78 code range covers q fever with 1 ICD-10-CM diagnosis codes. 1 of them are billable and valid for claim submission in fiscal year 2027, and the category headers group them but cannot themselves be billed.
Inclusion Terms
These terms are the conditions for which that code is to be used. The terms may be synonyms of the code title, or, in the case of "other specified" codes, the terms are a list of the various conditions assigned to that code. The inclusion terms are not necessarily exhaustive. Additional terms found only in the Alphabetic Index may also be assigned to a code.
- Infection due to Coxiella burnetii
- Nine Mile fever
- Quadrilateral fever
Codes in the A78 Range 1 codes · 1 billable
- A78 Q fever
Clinical Terms in This Code Range
Definitions from the National Library of Medicine for conditions coded in the A78 range.
Q Fever
An acute infectious disease caused by COXIELLA BURNETII. It is characterized by a sudden onset of FEVER; HEADACHE; malaise; and weakness. In humans, it is commonly contracted by inhalation of infected dusts derived from infected domestic animals (ANIMALS, DOMESTIC).
About the A78 Code Range
Q fever is an infection caused by Coxiella burnetii, commonly contracted by breathing infected dust from domestic animals. It starts suddenly with fever, headache, feeling unwell, and weakness.
Within the rickettsioses group, A78 identifies Q fever.
Questions About This Page
How many billable codes are in the A78 range?
Of the 1 codes in this range, 1 are billable and valid for claim submission from October 1, 2026 through September 30, 2027. Category header codes group them but cannot be reported on claims.
What does the A78 range classify?
The range classifies q fever. Each code links to its own reference page with billing status, MS-DRG grouping, coding notes, and clinical information.
Related References
Source: CMS FY 2027 ICD-10-CM Tabular List and order file, effective October 1, 2026 through September 30, 2027.
