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A77.8

Other spotted fevers

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
A77.8code
Inclusion terms
  • Rickettsia 364D/R. philipii (Pacific Coast tick fever)
  • Spotted fever due to Rickettsia africae (African tick bite fever)
  • Spotted fever due to Rickettsia parkeri
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 2
  • Fever (inanition) (of unknown origin) (persistent) (with chills) (with rigor) R50.9
    • spotted A77.9
      • due to Rickettsia
        • africae (African tick bite fever) A77.8
        • parkeri A77.8
        • specified type NEC A77.8
    • African tick bite A77.8
    • pacific coast tick A77.8
  • Rickettsia 364D/R. philipii (Pacific Coast tick fever) A77.8
Alongside this code 6 same parent — A77
A77.0 Spotted fever due to Rickettsia rickettsii A77.1 Spotted fever due to Rickettsia conorii A77.2 Spotted fever due to Rickettsia siberica A77.3 Spotted fever due to Rickettsia australis A77.4 Ehrlichiosis category A77.9 Spotted fever, unspecified
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
A77
Block
A75-A79
Siblings
6

Present FY2024–FY2027.