A01.00 Typhoid fever, unspecified
The ICD-10-CM code for Typhoid fever, unspecified is A01.00 (FY2026). It is a billable, claim-ready diagnosis code.
Classification
- Section
- A00-A09: Intestinal infectious diseases (A00-A09)
- Category A01
- 13 codes (11 billable)
- FY2026 Status
- Stable since FY2024
Also Known As
ICD-10-CM Alphabetic Index entries that lead to A01.00:
- Typhomania
- Eberth's disease (typhoid fever)
- Typhoid (abortive) (ambulant) (any site) (clinical) (fever) (hemorrhagic) (infection) (intermittent) (malignant) (rheumatic) (Widal negative)
- Fever (inanition) (of unknown origin) (persistent) (with chills) (with rigor) › gastroenteric
- Enteritis (acute) (diarrheal) (hemorrhagic) (noninfective) › typhosa
- Fever (inanition) (of unknown origin) (persistent) (with chills) (with rigor) › enteric
- Fever (inanition) (of unknown origin) (persistent) (with chills) (with rigor) › typhogastric
- Fever (inanition) (of unknown origin) (persistent) (with chills) (with rigor) › typhoid (abortive) (hemorrhagic) (intermittent) (malignant)
U.S. Hospital Utilization
- An estimated 310 U.S. inpatient stays in 2023 included A01.00 among the documented diagnoses.
- 145 stays listed it as the principal diagnosis.
Source: National Inpatient Sample (NIS), Healthcare Cost and Utilization Project (HCUP), Agency for Healthcare Research and Quality, 2016–2023. National survey-weighted estimates.
Official Coding Guidelines
HIV Infections (TOC entry)a. Human Immunodeficiency Virus (HIV) Infections .............................................................. 19
Infectious agents causing diseases in other chapters (TOC)b. Infectious agents as the cause of diseases classified to other chapters ................................. 22
Source: CMS — ICD-10-CM Official Guidelines for Coding and Reporting, FY2026