Supervision of high risk pregnancy, unsp, first trimester

This code signifies ongoing medical oversight for a pregnant patient during her first trimester (up to 13 weeks and 6 days gestation) when the pregnancy is identified as high-risk, but the specific reason for the high-risk designation is not documented or is unknown. It indicates that the patient requires closer monitoring than a routine pregnancy due to potential complications.

This code is appropriate when a provider is actively managing a high-risk pregnancy in the first trimester, but the medical record lacks specific documentation of the underlying high-risk condition (e.g., pre-existing diabetes, hypertension, advanced maternal age). It should be used when the physician's intent to supervise a high-risk pregnancy is clear, but the precise etiology is not yet determined or recorded.

• Only use this code when the specific high-risk condition is truly unspecified; otherwise, code the specific condition.
• Ensure documentation clearly indicates "first trimester" and "high-risk pregnancy" even if the reason is unknown.
• This code should be a secondary diagnosis, following the code for the pregnancy itself (e.g., Z3A.00 for unspecified weeks of gestation, or Z34.00 for encounter for supervision of normal first pregnancy, unspecified).