Postpartum inversion of uterus

This code represents a rare but severe obstetric complication where the uterine fundus collapses into the endometrial cavity, turning the uterus partially or completely inside out after childbirth. This condition typically occurs immediately following delivery of the infant or placenta and is associated with significant hemorrhage and shock.

Assign this code when documentation clearly indicates a postpartum inversion of the uterus, regardless of the degree of inversion (e.g., incomplete, complete). This diagnosis is supported by findings such as a prolapsed mass in the vagina, absence of the uterine fundus on abdominal palpation, or direct visualization during examination.

• Do not confuse with uterine prolapse (N81.x), which is a descent of the uterus into the vagina, not an inversion of its layers.
• Always sequence this code as a principal diagnosis if it is the reason for the encounter, especially if surgical correction is performed.
• Look for documentation specifying the timing of the inversion (e.g., "acute," "subacute," "chronic") as this may influence clinical management but does not alter the code assignment for inversion itself.