A49Header code — not billable
Bacterial infection of unspecified site
- Chapter
- 1. Certain infectious and parasitic diseases
- Category
- A49
- Effective date
- October 1, 2026
Related codes in category A49
A49.0Staphylococcal infection, unspecified siteA49.01Methicillin suscep staph infection, unsp siteYesA49.02Methicillin resis staph infection, unsp siteYesA49.1Streptococcal infection, unspecified siteYesA49.2Hemophilus influenzae infection, unspecified siteYesA49.3Mycoplasma infection, unspecified siteYesA49.8Other bacterial infections of unspecified siteYesA49.9Bacterial infection, unspecifiedYes
Frequently asked questions
What is ICD-10 code A49?
A49 is an ICD-10-CM diagnosis code for Bacterial infection of unspecified site.
Is A49 a billable code?
No. A49 is a category/header code, not billable on its own — use one of its more specific child codes instead.
What ICD-10-CM chapter is A49 in?
A49 falls under Chapter 1: Certain infectious and parasitic diseases.
When did A49 become effective?
A49 has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.
What other codes are related to A49?
A49 belongs to category A49, which includes 8 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.