Preterm labor with preterm delivery, unsp trimester, fetus 3

This code signifies the onset of labor before 37 completed weeks of gestation, resulting in the birth of a live or stillborn infant, where the specific trimester of delivery is not documented. It applies to the third fetus in a multiple gestation pregnancy.

Use this code when a patient delivers prematurely and the medical record clearly indicates preterm labor and delivery, but the specific trimester is not specified. Documentation must also confirm this is the third fetus in a multiple gestation. This code is typically assigned to the maternal record.

• Ensure documentation specifies "fetus 3" for accurate assignment in multiple gestations.
• Do not use if the trimester of delivery is known; instead, select the appropriate O60.11x, O60.12x, or O60.13x code.
• Always sequence this code as a primary diagnosis when it is the reason for the encounter, followed by codes for any associated conditions or complications.