Non-Billable / Non-Specific Code
ICD-10-CM A77 is the diagnosis code for Spotted fever [tick-borne rickettsioses]. This code falls under the section "Rickettsioses" within Chapter 1 — Certain infectious and parasitic diseases (A00-B99). It is a non-billable/non-specific ICD-10-CM code that should not be used for reimbursement. A more specific sub-code is required for billing. Medical coders and healthcare providers use this code to document and classify diagnoses in electronic health records, insurance claims, and clinical databases.
Always refer to the official ICD-10-CM Tabular List for complete coding guidelines. Ensure documentation supports the specificity of the code selected. When in doubt, consult a certified medical coder or the latest CMS guidelines.
Understanding where A77 sits in the ICD-10-CM classification helps ensure proper coding:
No, A77 is a non-billable/non-specific code. You should use a more specific sub-code for billing and reimbursement.
A77 is the ICD-10-CM diagnosis code for "Spotted fever [tick-borne rickettsioses]". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.
A77 is located in Section A75-A79 — "Rickettsioses" within Chapter 1 of the ICD-10-CM Tabular List.
A77 has 7 sub-code(s) that provide more specific detail: A77.0, A77.1, A77.2, A77.3, A77.4 and more.
Use A77 when the patients documented diagnosis matches "Spotted fever [tick-borne rickettsioses]" 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 Spotted fever [tick-borne rickettsioses] is A77.
No, A77 is non-billable. Use a more specific sub-code for primary diagnosis billing.
A77 is in Chapter 1 of the ICD-10-CM Tabular List.
Yes, A77 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.