Pre-exist hyp heart and chr kidney dis comp preg, first tri

This code signifies a pregnant patient in her first trimester who has a pre-existing history of both hypertensive heart disease and chronic kidney disease. These pre-existing conditions are actively complicating the current pregnancy, indicating a higher risk for both mother and fetus.

Apply this code when a pregnant patient presents in her first trimester with documented pre-existing essential hypertension affecting the heart and pre-existing chronic kidney disease, and the physician explicitly states these conditions are complicating the pregnancy. Documentation should clearly link the pre-existing conditions to the current pregnancy management.

• Always ensure documentation specifies "pre-existing" and "complicating pregnancy" for both conditions.
• Do not use if either the heart or kidney condition developed during the current pregnancy; different codes apply.
• Requires additional codes to specify the type and stage of chronic kidney disease (e.g., N18.-).