Preterm labor second tri w preterm del third tri, fetus 4

This code describes a pregnancy complicated by the onset of labor during the second trimester (weeks 14 0/7 through 27 6/7) that ultimately results in a preterm delivery during the third trimester (weeks 28 0/7 through 40 6/7). The "4" indicates this is a multiple gestation, specifically the fourth fetus.

Use this code when documentation clearly indicates preterm labor initiated in the second trimester, but the actual delivery of the fourth fetus occurred in the third trimester. This scenario typically involves interventions to prolong the pregnancy after the onset of preterm labor. Documentation should specify the gestational age at the onset of labor and at delivery, along with the fetal number.

• Ensure the documentation differentiates between the onset of labor and the actual delivery, as both must align with the specified trimesters.
• Verify the fetal number (e.g., fetus 1, 2, 3, or 4) is accurately identified in the medical record for multiple gestations.
• Code also any associated complications of the preterm labor or delivery, as well as the outcome of delivery.