A01
Non-Billable

Typhoid and paratyphoid fevers

Non-Billable / Non-Specific Code

What is Typhoid and paratyphoid fevers?

ICD-10-CM A01 is the diagnosis code for Typhoid and paratyphoid fevers. This code falls under the section "Intestinal infectious diseases" within Chapter 1 — Certain infectious and parasitic diseases (A00-B99). It is a non-billable/non-specific ICD-10-CM code that should not be used for reimbursement. A more specific sub-code is required for billing. Medical coders and healthcare providers use this code to document and classify diagnoses in electronic health records, insurance claims, and clinical databases.

Coding Guidelines for A01

Always refer to the official ICD-10-CM Tabular List for complete coding guidelines. Ensure documentation supports the specificity of the code selected. When in doubt, consult a certified medical coder or the latest CMS guidelines.

ICD-10-CM Code Hierarchy

Understanding where A01 sits in the ICD-10-CM classification helps ensure proper coding:

Sub-Codes 5 entries
A01.0Typhoid feverNon-BillableA01.00Typhoid fever, unspecifiedBillableA01.01Typhoid meningitisBillableA01.02Typhoid fever with heart involvementBillableA01.03Typhoid pneumoniaBillableA01.04Typhoid arthritisBillableA01.05Typhoid osteomyelitisBillableA01.09Typhoid fever with other complicationsBillableA01.1Paratyphoid fever ABillableA01.2Paratyphoid fever BBillableA01.3Paratyphoid fever CBillableA01.4Paratyphoid fever, unspecifiedBillable
Related Codes

Frequently Asked Questions

Is A01 a billable ICD-10-CM code?

No, A01 is a non-billable/non-specific code. You should use a more specific sub-code for billing and reimbursement.

What does A01 mean?

A01 is the ICD-10-CM diagnosis code for "Typhoid and paratyphoid fevers". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.

What section is A01 in?

A01 is located in Section A00-A09 — "Intestinal infectious diseases" within Chapter 1 of the ICD-10-CM Tabular List.

What are the sub-codes of A01?

A01 has 5 sub-code(s) that provide more specific detail: A01.0, A01.1, A01.2, A01.3, A01.4.

When should I use A01?

Use A01 when the patients documented diagnosis matches "Typhoid and paratyphoid fevers" and the clinical documentation supports this level of specificity. Always verify with the latest ICD-10-CM guidelines and payer requirements.

People Also Ask

What is the ICD-10 code for Typhoid and paratyphoid fevers?

The ICD-10-CM code for Typhoid and paratyphoid fevers is A01.

Can A01 be used for primary diagnosis?

No, A01 is non-billable. Use a more specific sub-code for primary diagnosis billing.

What chapter is A01 in?

A01 is in Chapter 1 of the ICD-10-CM Tabular List.

Is A01 valid for 2026?

Yes, A01 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.

See Also

← PreviousA00.9Cholera, unspecifiedNext →A01.0Typhoid fever
Code Details
A01
Typhoid and paratyphoid fevers
Non-Billable / Non-Specific Code
1 — Certain infectious and parasitic diseases (A00-B99)
A00-A09 — Intestinal infectious diseases
2026 ICD-10-CM