2020 ICD-10-CM Diagnosis Code B96.21

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

    2016 2017 2018 2019 2020 - Revised Code Billable/Specific Code
  • 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
  • ICD-10-CM B96.21 is a revised 2020 ICD-10-CM code that became effective on October 1, 2019.
  • 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
Annotation Back-References
In this context, annotation back-references refer to codes that contain:
  • Applicable To annotations, or
  • Code Also annotations, or
  • Code First annotations, or
  • Excludes1 annotations, or
  • Excludes2 annotations, or
  • Includes annotations, or
  • Note annotations, or
  • Use Additional annotations
that may be applicable to B96.21:
  • A00-B99
    2020 ICD-10-CM Range A00-B99

    Certain infectious and parasitic diseases

    Includes
    • diseases generally recognized as communicable or transmissible
    Type 1 Excludes
    • certain localized infections - see body system-related chapters
    Type 2 Excludes
    • carrier or suspected carrier of infectious disease (Z22.-)
    • infectious and parasitic diseases complicating pregnancy, childbirth and the puerperium (O98.-)
    • infectious and parasitic diseases specific to the perinatal period (P35-P39)
    • influenza and other acute respiratory infections (J00-J22)
    Use Additional
    • code to identify resistance to antimicrobial drugs (Z16.-)
    Certain infectious and parasitic diseases
  • B95-B97
    2020 ICD-10-CM Range B95-B97

    Bacterial and viral infectious agents

    Note
    • These categories are provided for use as supplementary or additional codes to identify the infectious agent(s) in diseases classified elsewhere.
    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 v37.0):
  • 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-CM

Code 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

Diagnosis Index entries containing back-references to B96.21:
  • Escherichia coli (E. coli) B96.20
    ICD-10-CM Diagnosis Code B96.20

    Unspecified Escherichia coli [E. coli] as the cause of diseases classified elsewhere

      2016 2017 2018 2019 2020 Billable/Specific Code
    Applicable To
    • Escherichia coli [E. coli] NOS

ICD-10-CM Codes Adjacent To B96.21
B95.6 Staphylococcus aureus as the cause of diseases classified elsewhere
B95.61 Methicillin susceptible Staphylococcus aureus infection as the cause of diseases classified elsewhere
B95.62 Methicillin resistant Staphylococcus aureus infection as the cause of diseases classified elsewhere
B95.7 Other staphylococcus as the cause of diseases classified elsewhere
B95.8 Unspecified staphylococcus as the cause of diseases classified elsewhere
B96 Other bacterial agents as the cause of diseases classified elsewhere
B96.0 Mycoplasma pneumoniae [M. pneumoniae] as the cause of diseases classified elsewhere
B96.1 Klebsiella pneumoniae [K. pneumoniae] as the cause of diseases classified elsewhere
B96.2 Escherichia coli [E. coli ] as the cause of diseases classified elsewhere
B96.20 Unspecified Escherichia coli [E. coli] as the cause of diseases classified elsewhere
B96.21 Shiga toxin-producing Escherichia coli [E. coli] [STEC] O157 as the cause of diseases classified elsewhere
B96.22 Other specified Shiga toxin-producing Escherichia coli [E. coli] [STEC] as the cause of diseases classified elsewhere
B96.23 Unspecified Shiga toxin-producing Escherichia coli [E. coli] [STEC] as the cause of diseases classified elsewhere
B96.29 Other Escherichia coli [E. coli] as the cause of diseases classified elsewhere
B96.3 Hemophilus influenzae [H. influenzae] as the cause of diseases classified elsewhere
B96.4 Proteus (mirabilis) (morganii) as the cause of diseases classified elsewhere
B96.5 Pseudomonas (aeruginosa) (mallei) (pseudomallei) as the cause of diseases classified elsewhere
B96.6 Bacteroides fragilis [B. fragilis] as the cause of diseases classified elsewhere
B96.7 Clostridium perfringens [C. perfringens] as the cause of diseases classified elsewhere
B96.8 Other specified bacterial agents as the cause of diseases classified elsewhere
B96.81 Helicobacter pylori [H. pylori] as the cause of diseases classified elsewhere

Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.