Unspecified maternal hypertension, second trimester

This code signifies elevated blood pressure in a pregnant patient during her second trimester, where the specific type of hypertension (e.g., gestational, pre-existing, pre-eclampsia) has not yet been determined or documented. It indicates a hypertensive state requiring further evaluation.

Apply this code when a pregnant patient presents with hypertension during the second trimester, and the provider's documentation does not specify the etiology or type of hypertension. This code is appropriate when the diagnosis is still pending further workup or specialist consultation.

• Avoid using this code if the type of hypertension is clearly documented (e.g., gestational hypertension, chronic hypertension).
• Always strive for a more specific hypertension code if the documentation allows.
• Sequence this code as a principal diagnosis if it is the primary reason for the encounter, or as a secondary diagnosis if it is a co-morbidity.