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

This code signifies a pregnant patient with a pre-existing history of both hypertensive heart disease and chronic kidney disease, where these conditions are complicating the current pregnancy. It indicates that the specific trimester of pregnancy is not documented.

Use this code when documentation clearly states a pregnant patient has pre-existing hypertension affecting the heart and pre-existing chronic kidney disease, and these conditions are noted as complicating the pregnancy. This applies when the medical record does not specify the trimester.

• Always sequence this code as a primary diagnosis when it is the main reason for the encounter related to the complication.
• Do not use this code if the hypertension or kidney disease is gestational or induced by the pregnancy; refer to codes in the O13-O16 range.
• Ensure documentation specifies "pre-existing" for both conditions to justify using this code.