2024 ICD-10-CM Diagnosis Code B96.21

by

Shiga toxin-producing Escherichia coli [E. coli] [STEC] O157 as the cause of diseases classified elsewhere

  • B96.21 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
  • Short description: Shig tox E coli [STEC] O157 causing diseases classd elswhr
  • The 2024 edition of ICD-10-CM B96.21 became effective on October 1, 2023.
  • This is the American ICD-10-CM version of B96.21 – other international versions of ICD-10 B96.21 may differ.

Applicable To

  • 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

The following code(s) above B96.21 contain annotation back-references

 that may be applicable to B96.21:

  • A00-B99  Certain infectious and parasitic diseases
  • B95-B97  Bacterial and viral infectious agents

Approximate Synonyms

  • E coli 0157 infection
  • Infection due to escherichia coli 0157

ICD-10-CM B96.21 is grouped within Diagnostic Related Group(s) (MS-DRG v41.0):

  • 867 Other infectious and parasitic diseases diagnoses with mcc
  • 868 Other infectious and parasitic diseases diagnoses with cc
  • 869 Other infectious and parasitic diseases diagnoses without cc/mcc

Convert B96.21 to ICD-9-CMCode History

  • 2016 (effective 10/1/2015): New code (first year of non-draft ICD-10-CM)
  • 2017 (effective 10/1/2016): No change
  • 2018 (effective 10/1/2017): No change
  • 2019 (effective 10/1/2018): No change
  • 2020 (effective 10/1/2019): Revised code
    • New description: Shiga toxin-producing Escherichia coli [E. coli] [STEC] O157 as the cause of diseases classified elsewhere
    • 2019 description: Shiga toxin-producing Escherichia coli [E. coli] (STEC) O157 as the cause of diseases classified elsewhere
  • 2021 (effective 10/1/2020): No change
  • 2022 (effective 10/1/2021): No change
  • 2023 (effective 10/1/2022): No change
  • 2024 (effective 10/1/2023): No change

Diagnosis Index entries containing back-references to B96.21: