ICD-10-CM › A00-B99 › A30-A49 › A49 Bacterial infection of unspecified site › A49.8

Valid for claims with a date of service in the current code year.

Valid FY2016 onwards.

What has happened to this code

Official coding rules

Published by CDC for FY2027. A rule attached to a category binds every code beneath it, so the rules inherited from this code's ancestors are shown with the code they come from.

Inherited from A49 Bacterial infection of unspecified site

Excludes1 - never coded here

• bacterial agents as the cause of diseases classified elsewhere (B95-B96)
• meningococcal infection NOS (A39.9)
• rickettsial infection NOS (A79.9)
• spirochetal infection NOS (A69.9)

Excludes2 - not included here

• chlamydial infection NOS (A74.9)

How CDC's index refers to this code

Wording from the official alphabetic index. Much of it appears nowhere in the code description, which is why a search for the everyday phrase so often finds nothing.

• Bacillus
• Colibacillosis
• Friedländer's B NEC
• Burkholderia > cepacia
• Infection, infected, infective > Cronobacter
• Infection, infected, infective > Proteus NEC
• Infection, infected, infective > Serratia NEC
• Infection, infected, infective > Bacteroides NEC
• Infection, infected, infective > mixed flora NEC
• Infection, infected, infective > Pseudomonas NEC
• Infection, infected, infective > Escherichia coli NEC
• Infection, infected, infective > Klebsiella pneumoniae NEC
• Infection, infected, infective > Bacillus > Friedländer's NEC
• Infection, infected, infective > bacterial NOS > as cause of disease classified elsewhere > Cronobacter

Codes in the same group

Code	Description	Status
A49.0	Staphylococcal infection, unspecified site	Not billable
A49.1	Streptococcal infection, unspecified site	Valid
A49.2	Hemophilus influenzae infection, unspecified site	Valid
A49.3	Mycoplasma infection, unspecified site	Valid
A49.9	Bacterial infection, unspecified	Valid