Guidelines › Follow-up Z codes (Z08, Z09)

Follow-up Z codes (Z08, Z09)

Official text from the FY2027 ICD-10-CM Official Guidelines for Coding and Reporting. The wording is quoted exactly.

Guidelines I.C.21.c.8

“They imply that the condition has been fully treated and no longer exists.”

“The follow-up code is sequenced first, followed by the history code.”

“Should a condition be found to have recurred on the follow-up visit, then the diagnosis code for the condition should be assigned in place of the follow-up code.”

Where this applies

2 billable codes. Source: FY 2027 ICD-10-CM Official Guidelines for Coding and Reporting, effective October 1, 2026. Full Guidelines (PDF, CMS)

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