O10.4
Non-billablePre-existing secondary hypertension complicating pregnancy, childbirth and the puerperium
O10.4 is the ICD-10-CM code for Pre-existing secondary hypertension complicating pregnancy, childbirth and the puerperium. It is a non-billable category code — use a more specific child code such as O10.41 for billing.
O00-O9A Pregnancy, childbirth and the puerperium
What this means — in plain language
MedlinePlus · NIHWhat is high blood pressure in pregnancy? Blood pressure is the force of your blood pushing against the walls of your arteries. Your arteries are blood vessels that carry blood from your heart to other parts of your body. High blood pressure , or hypertension, is blood pressure that is higher than normal. Having high blood pressure can put you at risk for other health problems, such as heart disease , heart attack ,…
Read more about High Blood Pressure in Pregnancy at MedlinePlus ↗Source: U.S. National Library of Medicine (MedlinePlus). Informational only — not medical advice.
Includes
- •Any condition in I15 specified as a reason for obstetric care during pregnancy, childbirth or the puerperium
Use additional code
- •code from I15 to identify the type of secondary hypertension
Conditions mapped to this code
MedlinePlus · NIHPlain-language health-topic references grounded in MedlinePlus (NIH/NLM).
Frequently asked questions
Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.
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