Pre-exist hyp chronic kidney disease comp preg, first tri

This code describes a pregnant patient with pre-existing chronic kidney disease (CKD) that is exacerbated or complicated by pre-existing hypertension, specifically during the first trimester of pregnancy. It signifies the presence of both chronic hypertension and CKD, with the pregnancy adding a layer of complexity to these pre-existing conditions.

Apply this code when documentation clearly indicates a pregnant patient in her first trimester has a pre-existing diagnosis of both essential hypertension and chronic kidney disease. This code is appropriate when the provider explicitly states that the pregnancy is complicating or being complicated by these pre-existing conditions.

• Always confirm the trimester of pregnancy; this code is specific to the first trimester.
• Ensure documentation specifies "pre-existing" hypertension and CKD to differentiate from gestational hypertension or acute kidney injury.
• Sequence this code as the primary diagnosis when it is the main reason for the encounter, followed by codes for the specific type and stage of CKD (e.g., N18.x) and the type of hypertension (e.g., I10).