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.

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Internal Codes
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  • Z00—

    Encounter for general examination without complaint, suspected or reported diagnosis

  • Z00.0—

    Encounter for general adult medical examination

  • Z00.00—

    Encounter for general adult medical examination without abnormal findings

  • Z00.01—

    Encounter for general adult medical examination with abnormal findings

  • Z00.1—

    Encounter for newborn, infant and child health examinations

  • Z00.11—

    Newborn health examination

  • Z00.110—

    Health examination for newborn under 8 days old

  • Z00.111—

    Health examination for newborn 8 to 28 days old

  • Z00.12—

    Encounter for routine child health examination

  • Z00.121—

    Encounter for routine child health examination with abnormal findings

  • Z00.129—

    Encounter for routine child health examination without abnormal findings

  • Z00.2—

    Encounter for examination for period of rapid growth in childhood

  • Z00.3—

    Encounter for examination for adolescent development state

  • Z00.5—

    Encounter for examination of potential donor of organ and tissue

  • Z00.6—

    Encounter for examination for normal comparison and control in clinical research program

  • Z00.7—

    Encounter for examination for period of delayed growth in childhood

  • Z00.70—

    Encounter for examination for period of delayed growth in childhood without abnormal findings

  • Z00.71—

    Encounter for examination for period of delayed growth in childhood with abnormal findings

  • Z00.8—

    Encounter for other general examination

  • Z01—

    Encounter for other special examination without complaint, suspected or reported diagnosis

  • Z01.0—

    Encounter for examination of eyes and vision

  • Z01.00—

    Encounter for examination of eyes and vision without abnormal findings

  • Z01.01—

    Encounter for examination of eyes and vision with abnormal findings

  • Z01.02—

    Encounter for examination of eyes and vision following failed vision screening

  • Z01.020—

    Encounter for examination of eyes and vision following failed vision screening without abnormal findings

  • Z01.021—

    Encounter for examination of eyes and vision following failed vision screening with abnormal findings

  • Z01.1—

    Encounter for examination of ears and hearing

  • Z01.10—

    Encounter for examination of ears and hearing without abnormal findings

  • Z01.11—

    Encounter for examination of ears and hearing with abnormal findings

  • Z01.110—

    Encounter for hearing examination following failed hearing screening

  • Z01.118—

    Encounter for examination of ears and hearing with other abnormal findings

  • Z01.12—

    Encounter for hearing conservation and treatment

  • Z01.2—

    Encounter for dental examination and cleaning

  • Z01.20—

    Encounter for dental examination and cleaning without abnormal findings

  • Z01.21—

    Encounter for dental examination and cleaning with abnormal findings

  • Z01.3—

    Encounter for examination of blood pressure

  • Z01.30—

    Encounter for examination of blood pressure without abnormal findings

  • Z01.31—

    Encounter for examination of blood pressure with abnormal findings

  • Z01.4—

    Encounter for gynecological examination

  • Z01.41—

    Encounter for routine gynecological examination

  • Z01.411—

    Encounter for gynecological examination (general) (routine) with abnormal findings

  • Z01.419—

    Encounter for gynecological examination (general) (routine) without abnormal findings

  • Z01.42—

    Encounter for cervical smear to confirm findings of recent normal smear following initial abnormal smear

  • Z01.8—

    Encounter for other specified special examinations

  • Z01.81—

    Encounter for preprocedural examinations

  • Z01.810—

    Encounter for preprocedural cardiovascular examination

  • Z01.811—

    Encounter for preprocedural respiratory examination

  • Z01.812—

    Encounter for preprocedural laboratory examination

  • Z01.818—

    Encounter for other preprocedural examination

  • Z01.82—

    Encounter for allergy testing

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