A49.8
Other bacterial infections of unspecified site
Billable FY2026 2025-10-01 → 2026-09-30
This is the unspecified option. 5 more
specific codes sit alongside it. Worth
checking whether the documentation supports one of them.
Exclusions 10 never code together
A49code
A00-B99chapter
Excludes1
- certain localized infections - see body system-related chapters
Excludes2
- carrier or suspected carrier of infectious disease (Z22.-)Z22.-
- infectious and parasitic diseases complicating pregnancy, childbirth and the puerperium (O98.-)O98.-
- infectious and parasitic diseases specific to the perinatal period (P35-P39)P35-P39
- influenza and other acute respiratory infections (J00-J22)J00-J22
Excludes1 — never code together. The excluded condition and this one are mutually exclusive.
Excludes2 — not included here, but the patient may have both. Code both when documented.
Instructional notes 2
Index entries leading here 4
- Infection, infected, infective (opportunistic) B99.9
- bacterial NOS A49.9
- Bacillus A49.9
- Friedländer's NEC A49.8
- Bacteroides NEC A49.8
- Cronobacter (sakazakii) A49.8
- Escherichia (E.) coli NEC A49.8
- Proteus (mirabilis) (morganii) (vulgaris) NEC A49.8
- Pseudomonas NEC A49.8
- Serratia NEC A49.8
- mixed flora (bacterial) NEC A49.8
- Klebsiella (K.) pneumoniae NEC A49.8
- Burkholderia
- cepacia A49.8
- Colibacillosis A49.8
- Friedländer's B (bacillus) NEC A49.8
Alongside this code 5 same parent — A49
Medications 2
MED-RT files conditions by MeSH, which carves the world differently from ICD-10. These are name matches on this code's description, offered as candidates — not as an assertion that they are this code.
Additional references
AHA Coding Clinic® Licence required
Official coding advice for this code. Published by the American Hospital Association. Not included in this installation.