Pre-existing hyp chronic kidney disease comp childbirth

This code signifies a pregnancy, childbirth, or puerperium complicated by pre-existing chronic kidney disease (CKD) that is a direct consequence of pre-existing hypertension. It indicates that the patient had established hypertensive CKD prior to the current obstetric episode, and this condition is impacting the current delivery.

Apply this code when a pregnant patient with a documented history of chronic kidney disease secondary to hypertension experiences childbirth. Documentation should clearly state the pre-existing nature of both the hypertension and the resulting CKD, and that the CKD is complicating the delivery.

• Always sequence this code after a code from category O80 (Encounter for full-term uncomplicated delivery) if applicable, or other codes describing the delivery.
• Do not use this code for gestational hypertension or pre-eclampsia; those have separate codes.
• Ensure documentation specifies "pre-existing" hypertensive CKD to differentiate from new onset or unrelated kidney issues.