Preterm labor second tri w preterm delivery second tri, unsp

This code signifies the onset of labor before 37 completed weeks of gestation, specifically occurring and resulting in delivery during the second trimester (14 weeks 0 days to 27 weeks 6 days). It indicates that the preterm labor directly led to a preterm birth within this gestational window.

Apply this code when documentation clearly states preterm labor and subsequent preterm delivery both occurred within the second trimester. This is appropriate for cases where the specific week of gestation for the delivery is not further specified, or if the documentation simply indicates "second trimester."

• Ensure both preterm labor and preterm delivery are explicitly documented as occurring in the second trimester.
• Do not use this code if the delivery occurred in the third trimester, even if labor began in the second.
• Always sequence this code as a primary diagnosis when it is the reason for the encounter.