A08
Non-Billable

Viral and other specified intestinal infections

Non-Billable / Non-Specific Code

What is Viral and other specified intestinal infections?

ICD-10-CM A08 is the diagnosis code for Viral and other specified intestinal infections. 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.

⛔ Excludes1

Coding Guidelines for A08

⛔ Type 1 Excludes (Never code together)

The following conditions should never be coded at the same time as A08. They are mutually exclusive:

  • influenza with involvement of gastrointestinal tract (J09.X3, J10.2, J11.2)

ICD-10-CM Code Hierarchy

Understanding where A08 sits in the ICD-10-CM classification helps ensure proper coding:

Current CodeA08 — Viral and other specified intestinal infections
Sub-Codes 6 entries
A08.0Rotaviral enteritisBillableA08.1Acute gastroenteropathy due to Norwalk agent and other small round virusesNon-BillableA08.11Acute gastroenteropathy due to Norwalk agentBillableA08.19Acute gastroenteropathy due to other small round virusesBillableA08.2Adenoviral enteritisBillableA08.3Other viral enteritisNon-BillableA08.31Calicivirus enteritisBillableA08.32Astrovirus enteritisBillableA08.39Other viral enteritisBillableA08.4Viral intestinal infection, unspecifiedBillableA08.8Other specified intestinal infectionsBillable
Related Codes

Frequently Asked Questions

Is A08 a billable ICD-10-CM code?

No, A08 is a non-billable/non-specific code. You should use a more specific sub-code for billing and reimbursement.

What does A08 mean?

A08 is the ICD-10-CM diagnosis code for "Viral and other specified intestinal infections". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.

What section is A08 in?

A08 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 A08?

A08 has 6 sub-code(s) that provide more specific detail: A08.0, A08.1, A08.2, A08.3, A08.4 and more.

When should I use A08?

Use A08 when the patients documented diagnosis matches "Viral and other specified intestinal infections" 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 Viral and other specified intestinal infections?

The ICD-10-CM code for Viral and other specified intestinal infections is A08.

Can A08 be used for primary diagnosis?

No, A08 is non-billable. Use a more specific sub-code for primary diagnosis billing.

What chapter is A08 in?

A08 is in Chapter 1 of the ICD-10-CM Tabular List.

What conditions are excluded from A08?

Type 1 Excludes for A08 include: influenza with involvement of gastrointestinal tract (J09.X3, J10.2, J11.2).

Is A08 valid for 2026?

Yes, A08 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.

See Also

← PreviousA07.9Protozoal intestinal disease, unspecifiedNext →A08.0Rotaviral enteritis
Code Details
A08
Viral and other specified intestinal infections
Non-Billable / Non-Specific Code
1 — Certain infectious and parasitic diseases (A00-B99)
A00-A09 — Intestinal infectious diseases
2026 ICD-10-CM