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A75.0

Epidemic louse-borne typhus fever due to Rickettsia prowazekii

Billable FY2026 2025-10-01 → 2026-09-30
Exclusions 6 never code together
A75code
Excludes1
  • rickettsiosis due to Ehrlichia sennetsu (A79.81)A79.81
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 4
A75.0code
Inclusion terms
  • Classical typhus (fever)
  • Epidemic (louse-borne) typhus
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 5
  • Typhus (fever) A75.9
  • Myocarditis (with arteriosclerosis)(chronic)(fibroid) (interstitial) (old) (progressive) (senile) I51.4
    • in (due to)
      • epidemic louse-borne typhus A75.0
  • Fever (inanition) (of unknown origin) (persistent) (with chills) (with rigor) R50.9
  • Hildenbrand's disease A75.0
  • Tabardillo A75.9
Alongside this code 4 same parent — A75
Medications 1

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.

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
A75
Block
A75-A79
Siblings
4

Present FY2024–FY2027.