Unspecified tubal pregnancy with intrauterine pregnancy

This code describes a rare and complex obstetric condition where a pregnancy is present both within the uterus and in a fallopian tube simultaneously, but the specific location within the fallopian tube is not documented. It signifies a heterotopic pregnancy where the tubal component's exact site (e.g., isthmic, ampullary) is unknown.

Use this code when diagnostic imaging (e.g., ultrasound) confirms the presence of both an intrauterine gestation and an ectopic gestation within a fallopian tube, but the precise anatomical segment of the tubal pregnancy is not specified in the medical record. This applies when the provider's documentation clearly states "heterotopic pregnancy with unspecified tubal component."

• Do not use this code if the specific location of the tubal pregnancy (e.g., ampullary, isthmic) is documented; instead, select a more specific O00.1- subcategory.
• Always sequence this code as the primary diagnosis when it is the reason for the encounter.
• Ensure documentation clearly distinguishes between an intrauterine pregnancy and a separate tubal ectopic pregnancy, rather than a misidentified single pregnancy.