Matern care for known or susp placntl insuff, 1st tri, fts3

This code signifies medical supervision and management provided to a pregnant patient during her first trimester due to a pre-existing or newly identified concern of the placenta not adequately supplying nutrients and oxygen to the fetus. This specific code is used when the pregnancy involves a third fetus (e.g., in a triplet or higher-order multiple gestation).

Apply this code when documentation indicates a known or suspected diagnosis of placental insufficiency in the first trimester of a multiple gestation pregnancy, specifically for the third fetus. Supporting documentation would include ultrasound findings, maternal history of placental issues, or clinical signs raising suspicion of compromised placental function.

• Ensure the documentation clearly specifies "first trimester" and identifies the concern as related to the "third fetus" in a multiple gestation.
• Do not use this code if the placental insufficiency is confirmed as a specific type (e.g., placenta previa), as more specific codes exist.
• This code requires an additional code from category Z3A to specify the exact gestational age in weeks.