A01.00 — Typhoid fever, unspecified
A01.00 is a billable, specific ICD-10-CM code for typhoid fever, unspecified. It is valid for submission on a claim.
Risk adjustment
A01.00 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
A01.00 is named in 9 Medicare coverage policies — 9 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.
- A58710Billing and Coding: MolDX: Molecular Syndromic Panels for Infectious Disease Pathogen Identification Testing
- A58710Billing and Coding: MolDX: Molecular Syndromic Panels for Infectious Disease Pathogen Identification Testing
- A58720Billing and Coding: MolDX: Molecular Syndromic Panels for Infectious Disease Pathogen Identification Testing
- A58720Billing and Coding: MolDX: Molecular Syndromic Panels for Infectious Disease Pathogen Identification Testing
How A01.00 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 A01.00.
- Eberth's disease(typhoid fever)
- Typhoid(abortive) (ambulant) (any site) (clinical) (fever) (hemorrhagic) (infection) (intermittent) (malignant) (rheumatic) (Widal negative)
- Typhomania
- Enteritis›typhosa
- Fever›enteric
- Fever›gastroenteric
- Fever›typhogastric
- Fever›typhoid(abortive) (hemorrhagic) (intermittent) (malignant)
- Infection, infected, infective›Eberthella typhosa
- Infection, infected, infective›Bacillus›typhosa
- Infection, infected, infective›Bacterium›typhosum
Related codes at this level
Codes that share A01.0. If A01.00 is not quite right, the correct code is usually one of these.
Questions about A01.00
- Is A01.00 a billable ICD-10-CM code?
- Yes. A01.00 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
- Where does A01.00 sit in the tabular list?
- Certain infectious and parasitic diseases (A00-B99), in the block Intestinal infectious diseases (A00-A09).