A44.9Billable

Bartonellosis, unspecified

Chapter
1. Certain infectious and parasitic diseases
Category
A44
Effective date
October 1, 2026

Related codes in category A44

A44BartonellosisA44.0Systemic bartonellosisYesA44.1Cutaneous and mucocutaneous bartonellosisYesA44.8Other forms of bartonellosisYes

Frequently asked questions

What is ICD-10 code A44.9?

A44.9 is an ICD-10-CM diagnosis code for Bartonellosis, unspecified.

Is A44.9 a billable code?

Yes. A44.9 is billable and specific enough to be used on a claim.

What ICD-10-CM chapter is A44.9 in?

A44.9 falls under Chapter 1: Certain infectious and parasitic diseases.

When did A44.9 become effective?

A44.9 has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.

What other codes are related to A44.9?

A44.9 belongs to category A44, which includes 4 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.