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A25.1

Streptobacillosis

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 5
A25.1code
Inclusion terms
  • Epidemic arthritic erythema
  • Haverhill fever
  • Streptobacillary rat-bite fever
A00-B99chapter
Includes
  • diseases generally recognized as communicable or transmissible
Use additional code
  • code to identify resistance to antimicrobial drugs (Z16.-)Z16.-
Index entries leading here 10
  • Actinobacillosis, actinobacillus A28.8
  • Infection, infected, infective (opportunistic) B99.9
    • Actinobacillus (actinomycetem-comitans) A28.8
    • streptobacillus moniliformis A25.1
  • Erythema, erythematous (infectional) (inflammation) L53.9
    • arthriticum epidemicum A25.1
    • epidemic, arthritic A25.1
  • Arthritis, arthritic (acute) (chronic) (nonpyogenic) (subacute) M19.90
    • epidemic erythema A25.1
    • due to or associated with
  • Fever (inanition) (of unknown origin) (persistent) (with chills) (with rigor) R50.9
  • Rat-bite fever A25.9
    • due to Streptobacillus moniliformis A25.1
  • Haverhill fever A25.1
  • Streptobacillary fever A25.1
  • Streptobacillosis A25.1
  • Streptobacillus moniliformis A25.1
Alongside this code 2 same parent — A25
Additional references
AHA Coding Clinic® Licence required

Official coding advice for this code. Published by the American Hospital Association. Not included in this installation.

Risk adjustment

Maps to no condition category in any loaded model.

Presence is a property of the code. Untick a model to hide it everywhere.

This code

Billable
yes
Code set
FY2026
Parent
A25
Block
A20-A28
Siblings
2

Present FY2024–FY2027.