A01 (Typhoid and paratyphoid fevers) is an umbrella ICD-10-CM medical diagnosis code in the Certain infectious and parasitic diseases chapter. It identifies cases of typhoid and paratyphoid fevers for clinical documentation, billing and epidemiological tracking.

ICD-10-CM · Category

A01 — Typhoid and paratyphoid fevers

Chapter A00-B99: Certain infectious and parasitic diseases

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Sub-codes under A01

A01.0Typhoid feverA01.1Paratyphoid fever AA01.2Paratyphoid fever BA01.3Paratyphoid fever CA01.4Paratyphoid fever, unspecified

Common questions about A01 (Typhoid and paratyphoid fevers)

What does ICD-10 code A01 mean?
A01 is the ICD-10-CM 2025 code for Typhoid and paratyphoid fevers. ICD-10-CM is the medical coding system used by clinicians, hospitals and insurers worldwide to classify diseases and conditions in a standard way.
Is A01 a billable diagnosis code?
A01 is a category-level (umbrella) code rather than a billable specific code. For billing purposes, clinicians typically use a more specific sub-code under A01. Browse the sub-codes listed on this page.
Which ICD-10 chapter does A01 belong to?
A01 belongs to the chapter "Certain infectious and parasitic diseases" (codes A00-B99). ICD-10-CM organises codes into 22 chapters by body system or condition type, which helps clinicians navigate related diagnoses.
Where can I get plain-language information about Typhoid and paratyphoid fevers?
For a plain-language explanation of Typhoid and paratyphoid fevers, ask GoDavaii's Health AI - it explains medical conditions in 90+ languages, free, with no signup. Tap "Ask GoDavaii AI about Typhoid and paratyphoid fevers" above to get a personalised answer.

Source: ICD-10-CM 2025 (Centers for Medicare & Medicaid Services, public domain). Codes valid from October 1, 2024. CMS source ↗