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FY2027

ICD-10-CM/Factors influencing health status and contact with health services

Z20-Z29

Persons with potential health hazards related to communicable diseases

Z20-Z29 contains 6 categories and 85 ICD-10-CM codes for FY2027.

Z20Contact with and (suspected) exposure to communicable diseases18 billable
Z21Asymptomatic human immunodeficiency virus [HIV] infection status1 billable
Z22Carrier of infectious disease20 billable
Z23Encounter for immunization1 billable
Z28Immunization not carried out and underimmunization status17 billable
Z29Encounter for other prophylactic measures8 billable

Not medical or billing advice. This site reproduces the ICD-10-CM classification for reference. Code selection must be based on the provider’s documentation and the ICD-10-CM Official Guidelines for Coding and Reporting. Verify against payer policy before submitting a claim.

ICD-10-CM is published by the CDC / National Center for Health Statistics and CMS. The classification is a work of the United States Government and is in the public domain. FY2027 codes are effective for encounters from October 1, 2026 through September 30, 2027.

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