2021 ICD-10-CM Diagnosis Code A08.1

Acute gastroenteropathy due to Norwalk agent and other small round viruses

2016

2017

2018

2019

2020

2021

Non-Billable/Non-Specific Code

A08.1 should not be used for reimbursement purposes as there are multiple codes below it that contain a greater level of detail.
Short description: Acute gastrent d/t Norwalk agent and oth small round viruses
The 2021 edition of ICD-10-CM A08.1 became effective on October 1, 2020.
This is the American ICD-10-CM version of A08.1 - other international versions of ICD-10 A08.1 may differ.

The following code(s) above A08.1 contain annotation back-references

Annotation Back-References

In this context, annotation back-references refer to codes that contain:

that may be applicable to A08.1:

Code History

2016 (effective 10/1/2015): New code (first year of non-draft ICD-10-CM)
2017 (effective 10/1/2016): No change
2018 (effective 10/1/2017): No change
2019 (effective 10/1/2018): No change
2020 (effective 10/1/2019): No change
2021 (effective 10/1/2020): No change

ICD-10-CM Codes Adjacent To A08.1

A07 Other protozoal intestinal diseases

A07.0 Balantidiasis

A07.1 Giardiasis [lambliasis]

A07.2 Cryptosporidiosis

A07.3 Isosporiasis

A07.4 Cyclosporiasis

A07.8 Other specified protozoal intestinal diseases

A07.9 Protozoal intestinal disease, unspecified

A08 Viral and other specified intestinal infections

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

A09 Infectious gastroenteritis and colitis, unspecified

Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.