ICD-10-CM Alphabetic Index · FY 2026 10 Entries
Escherichia coli in the ICD-10-CM Index ICD-10-CM
The main term Escherichia coli (E. coli), as cause of disease classified elsewhere carries 10 index entries pointing to 5 ICD-10-CM codes. The default entry is B96.20, the code the bare main term maps to; every indented line below refines the term by site, cause, or type. Verify any candidate code in the Tabular List before using it.
✓ Built from the official CMS FY 2026 index fileEffective Oct 1, 2025 – Sep 30, 2026
10
Index Entries
5
Codes Referenced
B96.20
Default Code
E
Letter
10 of 10 shown
ICD-10-CM
Index Entries Under Escherichia coli 10 entries · 5 codes
Escherichia coli (E. coli), as cause of disease classified elsewhere B96.20
non-O157 Shiga toxin-producing (with known O group) B96.22
non-Shiga toxin-producing B96.29
O157 B96.21
O157 with confirmation of Shiga toxin when H antigen is unknown, or is not H7 B96.21
O157:H- (nonmotile) with confirmation of Shiga toxin B96.21
O157:H7 with or without confirmation of Shiga toxin-production B96.21
specified NEC B96.22
Shiga toxin-producing (with unspecified O group) (STEC) B96.23
specified NEC B96.29
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Related Index Terms
Source: Centers for Medicare & Medicaid Services, FY 2026 ICD-10-CM Index to Diseases and Injuries release files, effective October 1, 2025 through September 30, 2026.
