A03.8 is a billable and specific ICD-10-CM code. Accurate coding of A03.8 ensures proper diagnosis, effective treatment, and correct reimbursement.
This guide provides key details of its use, official guidelines, and historical background.
ICD-10-CM Code for Other Shigellosis
The ICD-10-CM Diagnosis Code for other types of shigellosis is A03.8.
This condition includes infections caused by less common Shigella species.
Shigellosis is a bacterial infection of the intestines that causes diarrhea, abdominal pain, and fever. It spreads through contaminated food, water, or contact with infected individuals.
Proper documentation using A03.8 ensures patients receive accurate care and supports healthcare reimbursement.
History Background of ICD-10-CM Diagnosis Code A03.8
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 code for Other Shigellosis is 004.8. 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 like other shigellosis.
The 2025 edition of ICD-10-CM A03.8 became effective on October 1, 2024.
| YEAR | CODE | DESCRIPTION |
| 2020 | A03.8 | No Change |
| 2021 | A03.8 | No Change |
| 2022 | A03.8 | No Change |
| 2023 | A03.8 | No Change |
| 2024 | A03.8 | No Change |
| 2025 | A03.8 | No Change |
Some other ICD-9-CM & ICD-10-CM Codes for shigellosis:
| Shigellosis | ICD-9-CM CODE | ICD-10-CM CODE |
| Shigella dysenteriae | 004.0 | A03.0 |
| Shigella flexneri | 004.1 | A03.1 |
| Shigella boydii | 004.2 | A03.2 |
| Shigella sonnei | 004.3 | A03.3 |
| Other shigellosis | 004.8 | A03.8 |
| Shigellosis, Unspecified | 004.9 | A03.9 |
Symptoms of Other Shigellosis
- Nausea
- Vomiting
- The feeling of needing to have a bowel movement even when there’s nothing left in your intestines
- Small-volume stools that may be bloody or watery
- Diarrhea that may contain blood or mucus, and that may last more than three days.
- Stomach pain or cramps.
- Fever.
Other ICD-10-CM Diagnosis Codes in A03
ICD-10-CM code A03 | Viral and other specified intestinal infections has following sub categories including A03.8 :
- A03 Shigellosis.
- A03.0 Shigellosis due to Shigella dysenteriae.
- A03.1 Shigellosis due to Shigella flexneri.
- A03.2 Shigellosis due to Shigella boydii.
- A03.3 Shigellosis due to Shigella sonnei.
- A03.8 Other shigellosis.
- A03.9 Shigellosis, unspecified.
Final Thoughts
Proper coding of A03.8 is essential for diagnosing and managing shigellosis caused by less common Shigella species. Understanding its symptoms, causes, and coding guidelines ensures accurate documentation and improved patient care. This code supports effective healthcare management and facilitates proper reimbursement.
