Typhoid and paratyphoid fevers (A01) ICD-10-CM
The A01 code range covers typhoid and paratyphoid fevers with 13 ICD-10-CM diagnosis codes. 11 of them are billable and valid for claim submission in fiscal year 2027, and the category headers group them but cannot themselves be billed.
Codes in the A01 Range 13 codes · 11 billable
- A01 Typhoid and paratyphoid feversNon-billable
- A01.0 Typhoid feverNon-billable
- A01.00 Typhoid fever, unspecified
- A01.01 Typhoid meningitis
- A01.02 Typhoid fever with heart involvement
- A01.03 Typhoid pneumonia
- A01.04 Typhoid arthritis
- A01.05 Typhoid osteomyelitis
- A01.09 Typhoid fever with other complications
- A01.1 Paratyphoid fever A
- A01.2 Paratyphoid fever B
- A01.3 Paratyphoid fever C
- A01.4 Paratyphoid fever, unspecified
Clinical Terms in This Code Range
Definitions from the National Library of Medicine for conditions coded in the A01 range.
Paratyphoid Fever
A prolonged febrile illness commonly caused by several Paratyphi serotypes of SALMONELLA ENTERICA. It is similar to TYPHOID FEVER but less severe.
Paratyphoid Fever A
Paratyphoid fever that is caused by infection with Salmonella enterica, serovar Paratyphi A.
Paratyphoid Fever B
Paratyphoid fever that is caused by infection with Salmonella enterica, serovar Paratyphi B.
Paratyphoid Fever C
Paratyphoid fever that is caused by infection with Salmonella enterica, serovar Paratyphi C.
Typhoid Fever
An acute systemic febrile infection caused by SALMONELLA TYPHI, a serotype of SALMONELLA ENTERICA.
About the A01 Code Range
Typhoid and paratyphoid fevers appear among intestinal infectious diseases. This category separates typhoid fever from paratyphoid fever.
A01.0 groups typhoid fever codes. Its subdivisions distinguish unspecified fever from named complications, such as heart involvement or pneumonia, and other complications. Paratyphoid fever is separated into A01.1 for type A, A01.2 for type B, A01.3 for type C, and A01.4 when the type is unspecified.
Questions About This Page
How many billable codes are in the A01 range?
Of the 13 codes in this range, 11 are billable and valid for claim submission from October 1, 2026 through September 30, 2027. Category header codes group them but cannot be reported on claims.
What does the A01 range classify?
The range classifies typhoid and paratyphoid fevers. Each code links to its own reference page with billing status, MS-DRG grouping, coding notes, and clinical information.
Related References
Source: CMS FY 2027 ICD-10-CM Tabular List and order file, effective October 1, 2026 through September 30, 2027.
