A02.0 is a billable and specific ICD-10-CM code. Accurate coding of A02.0 is essential for ensuring effective patient care and facilitating appropriate reimbursement.
This guide provides detailed insights into its application, official guidelines, and historical background.
ICD-10-CM Diagnosis Code for Salmonella enteritis
The ICD-10-CM Diagnosis code for Salmonella enteritis is A02.0.
Salmonella enteritis is an infection caused by Salmonella bacteria, typically affecting the intestinal tract. It is often linked to consuming contaminated food or water.
Proper documentation using A02.0 ensures patients receive appropriate care and enables accurate healthcare reimbursement.
Synonyms:
- Salmonella gastroenteritis
History Background of ICD-10-CM Diagnosis Code A02.0
The ICD-9-CM system, first introduced in 1979, was the foundation for coding diseases and health-related conditions in the United States.
In the ICD-9-CM classification, A02.0 was represented by code 003.0, which referred to Salmonella enteritis, and 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 the condition of Salmonella enteritis.
The 2025 edition of ICD-10-CM A02.0 became effective on October 1, 2024.
| YEAR | CODE | DESCRIPTION |
| 2020 | A02.0 | No Change |
| 2021 | A02.0 | No Change |
| 2022 | A02.0 | No Change |
| 2023 | A02.0 | No Change |
| 2024 | A02.0 | No Change |
| 2025 | A02.0 | No Change |
Symptoms of Salmonella enteritis:
- Diarrhea (sometimes bloody)
- Abdominal cramps
- Nausea
- Vomiting
- Fever
- Chills
- Headache
- Muscle aches
How Salmonella Enteritis is Caused
Salmonella enteritis is caused by consuming contaminated food or water. Common sources include raw meat, poultry, eggs, or unpasteurized dairy.
After ingestion, the bacteria invade the intestines, causing inflammation and disrupting digestion. In severe cases, the bacteria can spread to the bloodstream and cause serious illness.
Other ICD-10-CM Diagnosis Codes in A02
ICD-10-CM code A02 | Other salmonella infections has following sub categories including A02.0 :
- A02 Other salmonella infections
- A02.0 Salmonella enteritis
- A02.1 Salmonella sepsis
- A02.2 Localized salmonella infections
- A02.20 Localized salmonella infection, unspecified
- A02.21 Salmonella meningitis
- A02.22 Salmonella pneumonia
- A02.23 Salmonella arthritis
- A02.24 Salmonella osteomyelitis
- A02.25 Salmonella pyelonephritis
- A02.29 Salmonella with other localized infection
- A02.8 Other specified salmonella infections
- A02.9 Salmonella infection, unspecified
Final Thoughts
Proper coding of A02.0 is essential for accurate diagnosis and effective treatment of Salmonella enteritis. For adequate documentation, medical professionals must know its causes, symptoms, and history. This code is key in ensuring appropriate reimbursement and improving patient care.





