ICD-10-CM · Chapter 1 · A00–B99
A01
Typhoid and paratyphoid fevers
Certain infectious and parasitic diseases
Heads up:this is a parent code. It's typically not directly billable — you need to drill down to a more specific child code (one with additional digits) to use on a claim.
Quick facts
- Code
- A01
- Type
- Category / header (non-billable)
- ICD-10-CM chapter
- Chapter 1 — Certain infectious and parasitic diseases
- Category
- A01
- Specificity
- 3 characters
How coders use this code
ICD-10-CM A01 is a category (header) for typhoid and paratyphoid fevers. It is generally not reported directly on a claim — coders drill down to a more specific child code (one with additional characters) that matches the documentation. Use the related codes below to find the billable code that fits, and verify against the annual NCHS/CMS guidelines.
Related codes in A01
- A01.0Typhoid fever
- A01.00Typhoid fever, unspecified
- A01.01Typhoid meningitis
- A01.02Typhoid fever with heart involvement
- A01.03Typhoid pneumonia
- A01.04Typhoid arthritis
- A01.05Typhoid osteomyelitis
- A01.09Typhoid fever with other complications
- A01.1Paratyphoid fever A
- A01.2Paratyphoid fever B
- A01.3Paratyphoid fever C
- A01.4Paratyphoid fever, unspecified
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