Pre-existing secondary htn comp pregnancy, second trimester

This code signifies a pregnant patient in her second trimester who has a pre-existing diagnosis of secondary hypertension. Secondary hypertension refers to high blood pressure caused by an identifiable underlying condition, such as kidney disease or endocrine disorders, that existed prior to the current pregnancy. The code indicates that this pre-existing condition is now complicating the pregnancy.

Use this code when documentation clearly states a pregnant patient in her second trimester has secondary hypertension that was present before conception and is now impacting the pregnancy. Supporting documentation would include a confirmed diagnosis of secondary hypertension (e.g., due to renal artery stenosis, Cushing's syndrome) and a clear indication of its effect on the current gestation.

• Always confirm the trimester of pregnancy from the medical record.
• Ensure the hypertension is explicitly documented as "secondary" and "pre-existing" to the current pregnancy.
• Code the underlying cause of the secondary hypertension in addition to this code.