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ICD-10 Codes Sections (Z20-Z29)

• Z20 Contact with and (suspected) exposure to communicable diseases
• Z21 Asymptomatic human immunodeficiency virus [HIV] infection status
• Z22 Carrier of infectious disease
• Z23 Encounter for immunization
• Z28 Immunization not carried out and underimmunization status
• Z29 Encounter for other prophylactic measures

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