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CurrentApr 1, 2026 – Sep 30, 2026

Code edition

CurrentApr 1, 2026 – Sep 30, 2026

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Chapters Disease index External causes Drugs and chemicals Neoplasms Official sources

ICD-10-CM · FY2026 · April / Chapters 21 / Persons with potential health hazards related to communicable diseases (Z20-Z29)

Persons with potential health hazards related to communicable diseases (Z20-Z29)

Z20-Z29 · 6 Entries

More specific codes (6)

Z20Contact with and (suspected) exposure to communicable diseasesCategory · further specificity required→Z21Asymptomatic human immunodeficiency virus [HIV] infection statusBillable / specific→Z22Carrier of infectious diseaseCategory · further specificity required→Z23Encounter for immunizationBillable / specific→Z28Immunization not carried out and underimmunization statusCategory · further specificity required→Z29Encounter for other prophylactic measuresCategory · further specificity required→

ICD-10-CM · CDC/NCHS · English

Official ICD-10-CM titles and instructions are preserved in English. Interface translations are provided by ICD Code Hub, not CDC or WHO.

CDC / NCHS · Apr 1, 2026 – Sep 30, 2026