Z34.80 ICD-10-CM Code: Encounter for supervision of other normal pregnancy, unspecified trimester

Z34.80 is the ICD-10-CM diagnosis code for encounter for supervision of other normal pregnancy, unspecified trimester. A routine prenatal visit for a woman who is pregnant with a subsequent pregnancy (not her first), when the specific trimester is not documented. Z34.80 sits in the ICD-10-CM chapter for factors influencing health status and contact with health services (z00-z99), within the section covering persons encountering health services in circumstances related to reproduction (z30-z39).

Z34.80 is a billable ICD-10-CM code but does not map to a payment HCC under the CMS-HCC V28, V24, ESRD, or RxHCC risk adjustment models. It can be reported on Medicare Advantage encounter data submissions but it does not contribute to a beneficiary's RAF score and therefore does not affect risk-adjusted payments to the plan.

Use this code for second, third, or later pregnancies when trimester is unspecified; assign specific trimester codes (Z34.81-Z34.83) when available.