A03.1
Shigellosis due to Shigella flexneri
Billable FY2026 2025-10-01 → 2026-09-30
Exclusions 5 never code together
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 3
Index entries leading here 7
- Infection, infected, infective (opportunistic) B99.9
- Dysentery, dysenteric (catarrhal) (diarrhea) (epidemic) (hemorrhagic) (infectious) (sporadic) (tropical) A09
- Bacillus — see also Infection, bacillus
- Flexner's A03.1
- Diarrhea, diarrheal (disease) (infantile) (inflammatory) R19.7
- Flexner's (ulcerative) A03.1
- Flexner's dysentery A03.1
- Shigellosis A03.9
- Group B A03.1
- Hiss-Russell dysentery A03.1
Alongside this code 5 same parent — A03
Additional references
AHA Coding Clinic® Licence required
Official coding advice for this code. Published by the American Hospital Association. Not included in this installation.