ED Coding and Reimbursement Alert

Reader Questions:

Shigellosis Dx Depends on Type

Question: A patient reports to the ED complaining of severe stomach cramps and diarrhea. Over the course of a level-four ED evaluation and management (E/M) service, the physician diagnoses and treats shigellosis. What is shigellosis, and how do I choose an ICD-10 code for the condition?

Kansas Subscriber

Answer: Per ICD-10, “Shigellosis is caused by a group of bacteria called Shigella, leading to diarrhea, fever, and stomach cramps.” Depending on encounter specifics, you’ll report one of the following codes to represent the patient’s 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).