Unsp pre-existing hypertension complicating the puerperium

This code signifies a patient experiencing hypertension that was present before pregnancy and is now complicating the postpartum period, but the specific type of pre-existing hypertension is not documented. It indicates a maternal health issue related to blood pressure that persists or manifests during the puerperium, without further specification of its nature (e.g., essential, secondary).

Use this code when a patient with a history of hypertension, not otherwise specified, presents with elevated blood pressure during the postpartum period (up to 42 days after delivery). Documentation should clearly state "pre-existing hypertension" or "chronic hypertension" and indicate its impact or presence during the puerperium without specifying the type of hypertension.

• Do not use this code if the type of pre-existing hypertension (e.g., essential, secondary) is documented; instead, use a more specific O10.x3 code.
• Ensure documentation explicitly links the pre-existing hypertension to a complication during the puerperium.
• This code is for the mother's condition; do not use for fetal or newborn conditions.