Partial placenta previa NOS or without hemor, first tri

This code describes a condition where the placenta partially covers the internal cervical os during the first trimester of pregnancy, without any associated bleeding. It indicates a low-lying placenta that has not completely occluded the os.

Use this code when documentation confirms a partial placenta previa identified in the first trimester, and there is no mention of hemorrhage. This diagnosis is typically made via ultrasound.

• Requires documentation of "partial" placenta previa and "first trimester."
• Do not use if hemorrhage is present; a different code would be required.
• Distinguish from complete placenta previa or marginal placenta previa.