A77.0
Billable

Spotted fever due to Rickettsia rickettsii

Billable / Specific Code

What is Spotted fever due to Rickettsia rickettsii?

ICD-10-CM A77.0 is the diagnosis code for Spotted fever due to Rickettsia rickettsii. 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.

💡 Inclusions

Coding Guidelines for A77.0

✅ This Code Includes

  • Rocky Mountain spotted fever
  • Sao Paulo fever

ICD-10-CM Code Hierarchy

Understanding where A77.0 sits in the ICD-10-CM classification helps ensure proper coding:

Current CodeA77.0 — Spotted fever due to Rickettsia rickettsii
Related Codes

Frequently Asked Questions

Is A77.0 a billable ICD-10-CM code?

Yes, A77.0 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.

What does A77.0 mean?

A77.0 is the ICD-10-CM diagnosis code for "Spotted fever due to Rickettsia rickettsii". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.

What is the parent code of A77.0?

The parent code of A77.0 is A77 ("Spotted fever [tick-borne rickettsioses]"). A77.0 provides a more specific classification within this category.

What section is A77.0 in?

A77.0 is located in Section A75-A79 — "Rickettsioses" within Chapter 1 of the ICD-10-CM Tabular List.

When should I use A77.0?

Use A77.0 when the patients documented diagnosis matches "Spotted fever due to Rickettsia rickettsii" and the clinical documentation supports this level of specificity. Always verify with the latest ICD-10-CM guidelines and payer requirements.

People Also Ask

What is the ICD-10 code for Spotted fever due to Rickettsia rickettsii?

The ICD-10-CM code for Spotted fever due to Rickettsia rickettsii is A77.0.

Can A77.0 be used for primary diagnosis?

Yes, A77.0 can be used as a primary diagnosis code since it is billable and specific.

What chapter is A77.0 in?

A77.0 is in Chapter 1 of the ICD-10-CM Tabular List.

Is A77.0 valid for 2026?

Yes, A77.0 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.

See Also

← PreviousA77Spotted fever [tick-borne rickettsioses]Next →A77.1Spotted fever due to Rickettsia conorii
Code Details
A77.0
Spotted fever due to Rickettsia rickettsii
Billable / Specific Code
1 — Certain infectious and parasitic diseases (A00-B99)
A75-A79 — Rickettsioses
2026 ICD-10-CM