A77.40Billable

Ehrlichiosis, unspecified

Chapter
1. Certain infectious and parasitic diseases
Category
A77
Effective date
October 1, 2026

Related codes in category A77

Frequently asked questions

What is ICD-10 code A77.40?

A77.40 is an ICD-10-CM diagnosis code for Ehrlichiosis, unspecified.

Is A77.40 a billable code?

Yes. A77.40 is billable and specific enough to be used on a claim.

What ICD-10-CM chapter is A77.40 in?

A77.40 falls under Chapter 1: Certain infectious and parasitic diseases.

When did A77.40 become effective?

A77.40 has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.

What other codes are related to A77.40?

A77.40 belongs to category A77, which includes 10 other codes — see the related codes list on this page.

ICD-10-CM data maintained by CDC/CMS (public domain). Always verify codes with authoritative sources before making coding or billing decisions.