All ICD10 Codes
Chapter 21

Z00–Z99: Factors Influencing Health Status and Contact with Health Services

Factors Influencing Health Status and Contact with Health Services diagnostic classification updated for 2026.

All CodesBillable Only
Internal Codes
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  • Z16.341—

    Resistance to single antimycobacterial drug

  • Z16.342—

    Resistance to multiple antimycobacterial drugs

  • Z16.35—

    Resistance to multiple antimicrobial drugs

  • Z16.39—

    Resistance to other specified antimicrobial drug

  • Z17—

    Estrogen, and other hormones and factors receptor status

  • Z17.0—

    Estrogen receptor positive status [ER+]

  • Z17.1—

    Estrogen receptor negative status [ER-]

  • Z17.2—

    Progesterone receptor status

  • Z17.21—

    Progesterone receptor positive status

  • Z17.22—

    Progesterone receptor negative status

  • Z17.3—

    Human epidermal growth factor 2 receptor

  • Z17.31—

    Human epidermal growth factor receptor 2 positive status

  • Z17.32—

    Human epidermal growth factor receptor 2 negative status

  • Z17.4—

    Combined receptor status

  • Z17.41—

    Hormone receptor positive

  • Z17.410—

    Hormone receptor positive with human epidermal growth factor receptor 2 positive status

  • Z17.411—

    Hormone receptor positive with human epidermal growth factor receptor 2 negative status

  • Z17.42—

    Hormone receptor negative

  • Z17.420—

    Hormone receptor negative with human epidermal growth factor receptor 2 positive status

  • Z17.421—

    Hormone receptor negative with human epidermal growth factor receptor 2 negative status

  • Z18—

    Retained foreign body fragments

  • Z18.0—

    Retained radioactive fragments

  • Z18.01—

    Retained depleted uranium fragments

  • Z18.09—

    Other retained radioactive fragments

  • Z18.1—

    Retained metal fragments

  • Z18.10—

    Retained metal fragments, unspecified

  • Z18.11—

    Retained magnetic metal fragments

  • Z18.12—

    Retained nonmagnetic metal fragments

  • Z18.2—

    Retained plastic fragments

  • Z18.3—

    Retained organic fragments

  • Z18.31—

    Retained animal quills or spines

  • Z18.32—

    Retained tooth

  • Z18.33—

    Retained wood fragments

  • Z18.39—

    Other retained organic fragments

  • Z18.8—

    Other specified retained foreign body

  • Z18.81—

    Retained glass fragments

  • Z18.83—

    Retained stone or crystalline fragments

  • Z18.89—

    Other specified retained foreign body 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—

    Contact with and (suspected) exposure to intestinal infectious diseases 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

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