2021

  1. ICD-10-CM Codes
    2. ›
  2. Z00-Z99 Factors influencing health status and contact with health services
    3. ›
  3. Z20-Z29 Persons with potential health hazards related to communicable diseases
    4. ›
  4. Z20- Contact with and (suspected) exposure to communicable diseases
    5. ›
  5. 2021 ICD-10-CM Diagnosis Code Z20.01

2021 ICD-10-CM Diagnosis Code Z20.01

Contact with and (suspected) exposure to intestinal infectious diseases due to Escherichia coli (E. coli)

    2016 2017 2018 2019 2020 2021 Billable/Specific Code
  • Z20.01 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
  • Short description: Cntct w and expsr to intestnl infct dis d/t E coli (E. coli)
  • The 2021 edition of ICD-10-CM Z20.01 became effective on October 1, 2020.
  • This is the American ICD-10-CM version of Z20.01 - other international versions of ICD-10 Z20.01 may differ.
The following code(s) above Z20.01 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 Z20.01:
  • Z00-Z99
    2021 ICD-10-CM Range Z00-Z99

    Factors influencing health status and contact with health services

    Note
    • Z codes represent reasons for encounters. A corresponding procedure code must accompany a Z code if a procedure is performed. Categories Z00-Z99 are provided for occasions when circumstances other than a disease, injury or external cause classifiable to categories A00-Y89 are recorded as 'diagnoses' or 'problems'. This can arise in two main ways:
    • (a) When a person who may or may not be sick encounters the health services for some specific purpose, such as to receive limited care or service for a current condition, to donate an organ or tissue, to receive prophylactic vaccination (immunization), or to discuss a problem which is in itself not a disease or injury.
    • (b) When some circumstance or problem is present which influences the person's health status but is not in itself a current illness or injury.
    Factors influencing health status and contact with health services
  • Z20
    ICD-10-CM Diagnosis Code Z20

    Contact with and (suspected) exposure to communicable diseases

      2016 2017 2018 2019 2020 2021 Non-Billable/Non-Specific Code
    Type 1 Excludes
    • carrier of infectious disease (Z22.-)
    • diagnosed current infectious or parasitic disease -see Alphabetic Index
    Type 2 Excludes
    • personal history of infectious and parasitic diseases (Z86.1-)
    Contact with and (suspected) exposure to communicable diseases
ICD-10-CM Z20.01 is grouped within Diagnostic Related Group(s) (MS-DRG v38.0):
  • 951 Other factors influencing health status

Convert Z20.01 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): No change
  • 2021 (effective 10/1/2020): No change

Diagnosis Index entries containing back-references to Z20.01:
  • Contact (with) - see also Exposure (to)
    • intestinal infectious disease NEC Z20.09
      ICD-10-CM Diagnosis Code Z20.09

      Contact with and (suspected) exposure to other intestinal infectious diseases

        2016 2017 2018 2019 2020 2021 Billable/Specific Code
      • Escherichia coli Z20.01 (E. coli)
    • Escherichia coli Z20.01 (E. coli)
  • Exposure (to) T75.89
    - see also Contact, with
    ICD-10-CM Diagnosis Code T75.89

    Other specified effects of external causes

      2016 2017 2018 2019 2020 2021 Non-Billable/Non-Specific Code
    • intestinal infectious disease NEC Z20.09
      ICD-10-CM Diagnosis Code Z20.09

      Contact with and (suspected) exposure to other intestinal infectious diseases

        2016 2017 2018 2019 2020 2021 Billable/Specific Code
      • Escherichia coli Z20.01 (E. coli)
    • Escherichia coli Z20.01 (E. coli)

ICD-10-CM Codes Adjacent To Z20.01
Z18.8 Other specified retained foreign body
Z18.81 Retained glass fragments
Z18.83 Retained stone or crystalline fragments
Z18.89 …… fragments
Z18.9 Retained foreign body fragments, unspecified material
Z19 Hormone sensitivity malignancy status
Z19.1 Hormone sensitive malignancy status
Z19.2 Hormone resistant malignancy status
Z20 Contact with and (suspected) exposure to communicable diseases
Z20.0 Contact with and (suspected) exposure to intestinal infectious diseases
Z20.01 …… due to Escherichia coli (E. coli)
Z20.09 Contact with and (suspected) exposure to other intestinal infectious diseases
Z20.1 Contact with and (suspected) exposure to tuberculosis
Z20.2 Contact with and (suspected) exposure to infections with a predominantly sexual mode of transmission
Z20.3 Contact with and (suspected) exposure to rabies
Z20.4 Contact with and (suspected) exposure to rubella
Z20.5 Contact with and (suspected) exposure to viral hepatitis
Z20.6 Contact with and (suspected) exposure to human immunodeficiency virus [HIV]
Z20.7 Contact with and (suspected) exposure to pediculosis, acariasis and other infestations
Z20.8 Contact with and (suspected) exposure to other communicable diseases
Z20.81 Contact with and (suspected) exposure to other bacterial communicable diseases

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

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