A01
⚠ Non-billable
Typhoid and paratyphoid fevers
ICD-10-CM · FY2026 · Certain Infectious and Parasitic Diseases
Code
A01
System
ICD-10-CM
Billable
No — use specific code
Effective
FY2026
Chapter
Certain Infectious and Parasitic Diseases
Source
CMS / CDC NCHS
⚠ Verify before billing. Confirm against the current CMS/NCHS ICD-10-CM files and your payer's rules before claims submission.
Frequently asked questions
What is ICD-10 code A01?
ICD-10-CM code A01 represents Typhoid and paratyphoid fevers. It is a non-billable header code requiring a more specific subcategory in the Certain Infectious and Parasitic Diseases chapter, effective October 1, 2025 – September 30, 2026.
Is A01 billable?
No. A01 is a non-billable header. Select a more specific subcategory for claims submission.
What chapter is A01 in?
A01 belongs to the Certain Infectious and Parasitic Diseases chapter (A00–B99) of ICD-10-CM.
Related codes in the A01 category
A01.0
Typhoid fever
Non-billable
A01.1
Paratyphoid fever A
Billable
A01.2
Paratyphoid fever B
Billable
A01.3
Paratyphoid fever C
Billable
A01.4
Paratyphoid fever, unspecified
Billable
A01.00
Typhoid fever, unspecified
Billable
A01.01
Typhoid meningitis
Billable
A01.02
Typhoid fever with heart involvement
Billable
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