A75.3 — Typhus fever due to Rickettsia tsutsugamushi
A75.3 is a billable, specific ICD-10-CM code for typhus fever due to rickettsia tsutsugamushi. It is valid for submission on a claim.
Inclusion terms
Alternative wordings a physician may use in the chart for this same code.
- Scrub (mite-borne) typhus
- Tsutsugamushi fever
- Typhus fever due to Orientia Tsutsugamushi (scrub typhus)
Risk adjustment
A75.3 does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.
Medicare coverage
A75.3 is named in 2 Medicare coverage policies — 2 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.
- A56717Billing and Coding: Respiratory Therapy (Respiratory Care)
- A57224Billing and Coding: Respiratory Care
How A75.3 is indexed
Coders do not find codes by browsing the tabular list — they look them up in the alphabetic index, under the word the physician wrote. These are the index entries that lead here, so you can see which chart wordings map to A75.3.
- Kedani fever
- Sumatran mite fever
- Tsutsugamushi(disease) (fever)
- Disease, diseased›akamushi(scrub typhus)
- Disease, diseased›island(scrub typhus)
- Disease, diseased›Kedani(scrub typhus)
- Disease, diseased›shimamushi(scrub typhus)
- Disease, diseased›tsutsugamushi
- Fever›Japanese river
- Fever›kedani
- Fever›Sumatran mite
- Fever›tsutsugamushi
Related codes at this level
Codes that share A75. If A75.3 is not quite right, the correct code is usually one of these.
Questions about A75.3
- Is A75.3 a billable ICD-10-CM code?
- Yes. A75.3 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
- Where does A75.3 sit in the tabular list?
- Certain infectious and parasitic diseases (A00-B99), in the block Rickettsioses (A75-A79).