Preterm labor with preterm delivery, unsp trimester, fetus 2

This code signifies the occurrence of labor leading to delivery before 37 completed weeks of gestation, specifically for fetus 2 in a multiple gestation pregnancy. The specific trimester in which the preterm delivery occurred is not documented or is unknown.

Apply this code when documentation confirms preterm labor resulting in preterm delivery for the second fetus in a multiple pregnancy, and the trimester of delivery is not specified. This code requires clear documentation of both preterm labor and preterm delivery.

• Ensure documentation specifies "fetus 2" to differentiate from other fetuses in a multiple gestation.
• Do not use if the trimester of delivery is known; instead, select the appropriate O60.11X2 or O60.12X2 code.
• Always sequence this code as a primary diagnosis when it is the reason for the encounter.