ICD-10-CM 2027
ICD-10 code for intestinal yersiniosis
From the official ICD-10-CM alphabetic index entry “Yersiniosis › intestinal”. Page updated September 29, 2026.
About coding intestinal yersiniosis
The ICD-10-CM code for intestinal yersiniosis is A04.6 (Enteritis due to Yersinia enterocolitica).
Within A04 (other bacterial intestinal infections), A04.6 is specifically for enteritis due to Yersinia enterocolitica. Related codes cover enteropathogenic Escherichia coli infection (A04.0), enterotoxigenic Escherichia coli infection (A04.1), enteroinvasive Escherichia coli infection (A04.2), enterohemorrhagic Escherichia coli infection (A04.3), other intestinal Escherichia coli infections (A04.4), campylobacter enteritis (A04.5), enterocolitis due to Clostridium difficile (A04.7), other specified bacterial intestinal infections (A04.8) and 1 more.
Don't report A04.6 together with the conditions in its Excludes1 note: extraintestinal yersiniosis (A28.2).
As a secondary diagnosis it is a CC (complication or comorbidity), which can move an inpatient stay into the "with CC" MS-DRG of its family, unless the principal diagnosis excludes it.
Don't confuse with (Excludes1 for A04.6)
- extraintestinal yersiniosis (A28.2)
Common questions about intestinal yersiniosis ICD-10 codes
What is the ICD-10 code for intestinal yersiniosis?
- A04.6 — Enteritis due to Yersinia enterocolitica.
Is A04.6 billable?
- Yes. A04.6 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can A04.6 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict A04.6 as a principal diagnosis.
Is A04.6 a CC or MCC?
- A04.6 is a CC (complication or comorbidity) under MS-DRG v44.0, unless excluded by the principal diagnosis.