Cont preg aft spon abort of one fts or more, first tri, unsp

This code describes a multifetal pregnancy where one or more fetuses have been spontaneously aborted, but at least one fetus continues to develop. This event occurs specifically during the first trimester of the pregnancy.

Use this code when documentation confirms a spontaneous abortion of one or more fetuses in a multifetal pregnancy, with the remaining fetus(es) still viable and the event occurring in the first trimester. Supporting documentation would include ultrasound reports confirming fetal demise of one or more, and subsequent ultrasound confirming ongoing viability of other fetus(es).

• Ensure the documentation clearly specifies a multifetal pregnancy and the spontaneous abortion of some but not all fetuses.
• Verify the trimester of the spontaneous abortion; this code is specific to the first trimester.
• Do not confuse with codes for complete spontaneous abortion (O03.-) or missed abortion (O02.1) when a viable fetus remains.