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Multiple Choice

Z codes identify which of the following?

Z codes in ICD-10-CM are used to capture the reason for a patient’s encounter, not a disease, procedure, or medication. They include situations like immunizations, preventive care, routine exams, and other health services. Because immunizations are specifically documented as a purpose for the visit, a Z code such as Encounter for immunization is used to indicate why the patient is seen. Diagnoses use disease codes, procedures use procedure codes, and medications use separate medication coding, so the Z code category best fits documenting immunizations.

Z codes in ICD-10-CM are used to capture the reason for a patient’s encounter, not a disease, procedure, or medication. They include situations like immunizations, preventive care, routine exams, and other health services. Because immunizations are specifically documented as a purpose for the visit, a Z code such as Encounter for immunization is used to indicate why the patient is seen. Diagnoses use disease codes, procedures use procedure codes, and medications use separate medication coding, so the Z code category best fits documenting immunizations.