A08.1 is a Non-billable and Non-specific ICD-10-CM code.
A08.1 is not used for reimbursement, as more specific and detailed codes are available for precise documentation and billing.
What is the ICD-10-CM Diagnosis Code for Acute gastroenteropathy due to Norwalk agent and other small round viruses?
The ICD-10-CM diagnosis code for Acute gastroenteropathy due to Norwalk agent and other small round viruses is A08.1.
Acute gastroenteropathy due to Norwalk agent and other small round viruses is a viral infection of the stomach and intestines, commonly caused by Norovirus.
It spreads through contaminated food, water, or surfaces, and is highly contagious. Symptoms typically include sudden onset of nausea, vomiting, watery diarrhea, abdominal cramps, and sometimes fever.
The illness is usually self-limiting, lasting 1 to 3 days. Treatment involves supportive care, especially fluid replacement to prevent dehydration.
Proper documentation using the specific codes under A08.1 ensures patients receive appropriate care and enables accurate healthcare reimbursement.
More specific codes:
A08.11:Acute gastroenteropathy due to Norwalk agent
A08.19:Acute gastroenteropathy due to other small round viruses
History Background of ICD-10-CM Diagnosis Code A08.1
The ICD-9-CM system, first introduced in 1979, provided the initial framework for coding diseases and health-related conditions in the United States.
The ICD-9-CM diagnosis code for Acute gastroenteropathy due to Norwalk agent and other small round viruses is 008.63.This coding remained consistent from 1979 to 2015.
While the ICD-9-CM system offered a basic approach to disease classification, modern healthcare needs more detail and specificity.
To address this, the ICD-10-CM system was launched in 2015, introducing a more comprehensive and accurate coding structure.
The transition from ICD-9-CM to ICD-10-CM significantly improved the ability to document and analyze conditions such as Acute gastroenteropathy due to Norwalk agent and other small round viruses.
The 2025 edition of ICD-10-CM A08.1 became effective on October 1, 2024.
| Year | ICD-10-CM Code | Description |
| 2020 | A08.1 | No Change |
| 2021 | A08.1 | No Change |
| 2022 | A08.1 | No Change |
| 2023 | A08.1 | No Change |
| 2024 | A08.1 | No Change |
| 2025 | A08.1 | No Change |
Other ICD-10-CM Diagnosis Codes in A08
ICD-10-CM code A08 | Viral and other specified intestinal infections has following sub categories including A08.1 :
- A08.0 Rotaviral enteritis.
- A08.1 Acute gastroenteropathy due to Norwalk agent and other small round viruses.
- A08.11 Acute gastroenteropathy due to Norwalk agent.
- A08.19 Acute gastroenteropathy due to other small round viruses.
- A08.2 Adenoviral enteritis.
- A08.3 Other viral enteritis.
- A08.31 Calicivirus enteritis.
- A08.32 Astrovirus enteritis.
- A08.39 Other viral enteritis.
- A08.4 Viral intestinal infection, unspecified.
- A08.8 Other specified intestinal infections.
Final Thought
Proper coding of A08.1 is essential for diagnosing and managing Acute gastroenteropathy due to Norwalk agent and other small round viruses. A clear understanding of its History, and correct usage enhances medical documentation and ensures effective treatment, patient care, supports healthcare planning, and guarantees proper reimbursement for medical services.
