Matern care for known or susp placntl insuff, unsp tri, fts2

This code signifies ongoing maternal medical supervision due to a known or suspected impairment in placental function, which can compromise fetal growth and well-being. It indicates that the specific trimester of gestation is not documented, and the focus is on the second fetus in a multiple gestation pregnancy.

This code is appropriate when a pregnant patient is receiving care for placental insufficiency, but the medical record does not specify the trimester. Documentation should clearly state "placental insufficiency" or "uteroplacental insufficiency" and identify the affected fetus as "fetus 2" in a multiple pregnancy.

• Ensure documentation specifies "fetus 2" in cases of multiple gestation; otherwise, a code for an unspecified fetus should be used.
• Avoid using this code if the trimester is clearly documented; instead, select the trimester-specific code (O36.511-, O36.512-, O36.513-).
• Always sequence this code as a secondary diagnosis, with the primary diagnosis reflecting the reason for the encounter or the underlying condition causing the placental insufficiency.