Cont preg aft spon abort of one fts or more, unsp tri, fts1

This code describes a pregnancy where one or more fetuses were spontaneously aborted, but at least one other fetus continues to develop. It specifically refers to the first fetus in a multiple gestation pregnancy. The trimester of the spontaneous abortion is not specified.

Use this code when documentation indicates a multifetal pregnancy where one or more fetuses were lost due to spontaneous abortion, but at least one fetus remains viable. This code is applicable when the specific trimester of the fetal loss is not recorded. Documentation should clearly state the spontaneous abortion of one fetus and the continuation of the remaining pregnancy.

• Always sequence this code after the primary obstetric code for the current pregnancy.
• Ensure the medical record specifies "fetus 1" when using this specific subcategory.
• Do not use if the trimester of the spontaneous abortion is known; instead, use the appropriate O31.11X-, O31.12X-, or O31.13X- code.