ICD-10-CM Diagnosis Code (2025)
Official Description for B96.21
Shiga toxin-producing Escherichia coli [E. coli] [STEC] O157 as the cause of diseases classified elsewhere
Coding Notes & Guidelines for B96.21
- E. coli O157:H- (nonmotile) with confirmation of Shiga toxin
- E. coli O157 with confirmation of Shiga toxin when H antigen is unknown, or is not H7
- O157:H7 Escherichia coli [E.coli] with or without confirmation of Shiga toxin-production
- Shiga toxin-producing Escherichia coli [E.coli] O157:H7 with or without confirmation of Shiga toxin-production
- STEC O157:H7 with or without confirmation of Shiga toxin-production
Parent Code (Less Specific):
About ICD-10-CM Code B96.21 (Shiga toxin-producing Escherichia coli [E. coli] [STEC] O157 as the cause of diseases classified elsewhere)
ICD-10-CM code B96.21 is a billable or specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. The 2025 edition of ICD-10-CM B96.21 became effective on October 1, 2024.
This page provides detailed information about B96.21 - Shiga toxin-producing Escherichia coli [E. coli] [STEC] O157 as the cause of diseases classified elsewhere. It includes common terminology, coding guidelines such as "Includes," "Excludes1," and "Excludes2" notes, and information on required 7th characters. Utilizing this information correctly is essential for accurate medical coding and claims submission for conditions like Shiga toxin-producing Escherichia coli [E. coli] [STEC] O157 as the cause of diseases classified elsewhere.