ICD-10-CM · Chapter 1 · A00–B99
A77.0
Spotted fever due to Rickettsia rickettsii
Certain infectious and parasitic diseases
Quick facts
- Code
- A77.0
- Type
- Billable code
- ICD-10-CM chapter
- Chapter 1 — Certain infectious and parasitic diseases
- Category
- A77 — Spotted fever [tick-borne rickettsioses]
- Specificity
- 4 characters
How coders use this code
ICD-10-CM A77.0 is a billable, fully specified code, so it can be reported directly on a claim to document a diagnosis of spotted fever due to rickettsia rickettsii. Coders assign it when the chart documentation supports this level of detail, always matching to the most specific code available and verifying against the chapter-specific guidelines published annually by NCHS/CMS.
Related codes in A77
- A77Spotted fever [tick-borne rickettsioses]
- A77.1Spotted fever due to Rickettsia conorii
- A77.2Spotted fever due to Rickettsia siberica
- A77.3Spotted fever due to Rickettsia australis
- A77.4Ehrlichiosis
- A77.40Ehrlichiosis, unspecified
- A77.41Ehrlichiosis chaffeensis [E. chaffeensis]
- A77.49Other ehrlichiosis
- A77.8Other spotted fevers
- A77.9Spotted fever, unspecified
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