A05.3 is a billable and specific ICD-10-CM code. Accurate documentation of A05.3 facilitates proper diagnosis, effective management, and correct reimbursement.
This guideline will provide the use, official coding guidelines, and historical background of A05.3.
What is the ICD-10-CM Diagnosis Code for Foodborne Vibrio parahaemolyticus intoxication?
The ICD-10-CM diagnosis code for Foodborne Vibrio parahaemolyticus intoxication is A05.3.
This is a type of foodborne illness caused by consuming raw or undercooked seafood contaminated with the bacterium Vibrio parahaemolyticus.
This bacterium thrives in warm, coastal waters and can contaminate shellfish like oysters, clams, and crabs. It is a common cause of gastroenteritis in areas with high seafood consumption.
Proper documentation using A05.3 ensures patients receive appropriate care and enables accurate healthcare reimbursement.
Synonyms used for Foodborne Vibrio parahaemolyticus intoxication
- Vibrio parahaemolyticus food poisoning
- Seafood-related Vibrio gastroenteritis
- Vibrio parahaemolyticus infection
- Shellfish-associated Vibrio intoxication
History Background of ICD-10-CM Diagnosis Code A05.3
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 Foodborne Vibrio parahaemolyticus intoxication is 005.4.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 Foodborne Vibrio parahaemolyticus intoxication.
The 2025 edition of ICD-10-CM A05.3 became effective on October 1, 2024.
| Year | ICD-10-CM Code | Description |
| 2020 | A05.3 | No Change |
| 2021 | A05.3 | No Change |
| 2022 | A05.3 | No Change |
| 2023 | A05.3 | No Change |
| 2024 | A05.3 | No Change |
| 2025 | A05.3 | No Change |
Symptoms of Foodborne Vibrio parahaemolyticus intoxication
- Watery diarrhea
- Abdominal cramps and pain
- Nausea and vomiting
- Fever and chills
- Headache
Symptoms typically appear 12 to 24 hours after eating contaminated seafood and may last 2 to 3 days.
How Foodborne Vibrio parahaemolyticus intoxication is Caused
This illness happens when you consume seafood contaminated with the Vibrio parahaemolyticus bacteria. The bacteria thrive in warm coastal waters and can contaminate shellfish like oysters, clams, and crabs.
Here’s how it can be caused:
- Eating raw or undercooked seafood such as oysters or crabs.
- Poor seafood handling or processing that spreads bacteria.
- Improper storage of seafood, allowing bacteria to grow at unsafe temperatures.
- Exposure to contaminated water, especially in coastal areas.
- Cross-contamination, when raw seafood touches ready-to-eat food or clean utensils.
Other ICD-10-CM Diagnosis Codes in A05
ICD-10-CM code A05 | Other bacterial foodborne intoxications, not elsewhere classified has following sub categories including A05.3 :
- A05.0 Foodborne staphylococcal intoxication.
- A05.1 Botulism food poisoning.
- A05.2 Foodborne Clostridium perfringens [Clostridium welchii] intoxication.
- A05.3 Foodborne Vibrio parahaemolyticus intoxication.
- A05.4 Foodborne Bacillus cereus intoxication.
- A05.5 Foodborne Vibrio vulnificus intoxication.
- A05.8 Other specified bacterial foodborne intoxications.
- A05.9 Bacterial foodborne intoxication, unspecified.
Final Thought
Proper coding of A05.3 is essential for diagnosing and managing Foodborne Vibrio parahaemolyticus Intoxication . A clear understanding of its symptoms, causes, and coding guidelines ensures accurate documentation and effective treatment. Precise use of this code enhances patient care, supports healthcare planning, and guarantees proper reimbursement for medical services.





