ICD-10-CM A78 is the diagnosis code for Q fever. This code falls under the section "Rickettsioses" within Chapter 1 — Certain infectious and parasitic diseases (A00-B99). It is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. Medical coders and healthcare providers use this code to document and classify diagnoses in electronic health records, insurance claims, and clinical databases.
Understanding where A78 sits in the ICD-10-CM classification helps ensure proper coding:
Yes, A78 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
A78 is the ICD-10-CM diagnosis code for "Q fever". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.
A78 is located in Section A75-A79 — "Rickettsioses" within Chapter 1 of the ICD-10-CM Tabular List.
Use A78 when the patients documented diagnosis matches "Q fever" and the clinical documentation supports this level of specificity. Always verify with the latest ICD-10-CM guidelines and payer requirements.
The ICD-10-CM code for Q fever is A78.
Yes, A78 can be used as a primary diagnosis code since it is billable and specific.
A78 is in Chapter 1 of the ICD-10-CM Tabular List.
Yes, A78 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.