O24.01
Non-billablePre-existing type 1 diabetes mellitus, in pregnancy
O24.01 is the ICD-10-CM code for Pre-existing type 1 diabetes mellitus, in pregnancy. It is a non-billable category code — use a more specific child code such as O24.011 for billing.
O00-O9A Pregnancy, childbirth and the puerperium
What this means — in plain language
MedlinePlus · NIHWhat is diabetes? If you have diabetes , your blood glucose , or blood sugar, levels are too high. Glucose comes from the foods you eat. A hormone called insulin helps the glucose get into your cells to give them energy. With type 1 diabetes , your body does not make insulin. With type 2 diabetes , your body does not make or use insulin well. Without enough insulin, the glucose stays in your blood. What is…
Read more about Diabetes and Pregnancy at MedlinePlus ↗Source: U.S. National Library of Medicine (MedlinePlus). Informational only — not medical advice.
Frequently asked questions
Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.
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