Supervision of other high risk pregnancies, third trimester

This code signifies ongoing medical oversight for a pregnancy in its third trimester (28 weeks gestation to delivery) that is complicated by a high-risk factor not specified elsewhere. This includes situations where the patient has a pre-existing condition or develops a new complication that necessitates increased monitoring and specialized care to ensure optimal maternal and fetal outcomes.

Apply this code when a pregnant patient in her third trimester requires enhanced supervision due to a high-risk condition that doesn't have a more specific O09 code. Documentation should clearly state the high-risk factor (e.g., advanced maternal age, history of preterm labor, grand multiparity, certain chronic conditions) and confirm the third-trimester period. This code is used in conjunction with the code for the specific high-risk condition.

• Always sequence the code for the specific high-risk condition(s) before this supervision code.
• Do not use this code if a more specific O09 subcategory exists for the documented high-risk condition (e.g., O09.213 for supervision of elderly primigravida, third trimester).
• Ensure documentation explicitly states "third trimester" or provides gestational age confirming the third trimester.