ICD-10-CM > A00-B99 > A30-A49 > A49 A49 Bacterial infection of unspecified site Non-Billable/Non-Specific Type 1 Excludes bacterial agents as the cause of diseases classified elsewhere (B95-B96)chlamydial infection NOS (A74.9)meningococcal infection NOS (A39.9)rickettsial infection NOS (A79.9)spirochetal infection NOS (A69.9) Codes A49.0Staphylococcal infection, unspecified siteA49.01Methicillin susceptible Staphylococcus aureus infection, unspecified siteA49.02Methicillin resistant Staphylococcus aureus infection, unspecified siteA49.1Streptococcal infection, unspecified siteA49.2Hemophilus influenzae infection, unspecified siteA49.3Mycoplasma infection, unspecified siteA49.8Other bacterial infections of unspecified siteA49.9Bacterial infection, unspecified