A01.3 Paratyphoid fever C

The ICD-10-CM code for Paratyphoid fever C is A01.3 (FY2026). It is a billable, claim-ready diagnosis code.

Classification

Chapter

1: Certain infectious and parasitic diseases (A00-B99)

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 A01.3:

• Fever (inanition) (of unknown origin) (persistent) (with chills) (with rigor) › paratyphoid › C
• Infection, infected, infective (opportunistic) › Salmonella (aertrycke) (arizonae) (cholerae-suis) (enteritidis) (gallinarum) (suipestifer) (typhimurium) › hirschfeldii
• Infection, infected, infective (opportunistic) › Bacillus › paratyphoid, paratyphosus › C
• Infection, infected, infective (opportunistic) › Bacterium › paratyphosum › C
• Infection, infected, infective (opportunistic) › Salmonella (aertrycke) (arizonae) (cholerae-suis) (enteritidis) (gallinarum) (suipestifer) (typhimurium) › paratyphi › C
• Infection, infected, infective (opportunistic) › Parastrongylus › paratyphoid › Type C

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

References

• CMS — ICD-10-CM Official Code Set and Guidelines, FY2026
• CDC/NCHS — ICD-10-CM Files and Browser Tool