Pre-existing hypertensive heart disease comp childbirth

This code signifies a patient with a pre-existing diagnosis of hypertensive heart disease who is currently experiencing complications related to this condition during the childbirth period. This includes the period from conception through the puerperium. The hypertensive heart disease was present prior to the current pregnancy.

Apply this code when documentation clearly indicates a pre-existing hypertensive heart disease that is adversely affecting the patient during labor, delivery, or the immediate postpartum period. This requires a confirmed diagnosis of hypertensive heart disease established before the current pregnancy, along with evidence of its impact on the childbirth encounter.

• Always sequence this code after the primary obstetric code (e.g., O80 for normal delivery, or codes for specific complications of labor and delivery).
• Ensure documentation specifies "pre-existing" to differentiate from gestational hypertension or new-onset hypertension during pregnancy.
• Do not use this code if the hypertensive heart disease is unrelated to the childbirth encounter or if it developed during the current pregnancy.