O24.0
ICD-10Non-billable categoryPre-exist type 1 diabetes, in preg, chldbrth and the puerp
Official ICD-10-CM descriptor (FY2026)
Pre-existing type 1 diabetes mellitus, in pregnancy, childbirth and the puerperium
O24.0 is a category heading, not a billable code. CMS does not accept it on a claim; report one of the more specific codes beneath it.
Inclusion terms
- Juvenile onset diabetes mellitus, in pregnancy, childbirth and the puerperium
- Ketosis-prone diabetes mellitus in pregnancy, childbirth and the puerperium
Use additional code
Report an additional code to identify the associated condition.
- code from category E10 to further identify any manifestations
ICD-10-CM FY2026 defines 3 codes beneath O24.0. See the ICD-10-CM index for what this site publishes.
Related codes in O24
- O24.1Pre-exist type 2 diabetes, in preg, chldbrth and the puerpcategory
- O24.3Unsp pre-exist diabetes in pregnancy, chldbrth and the puerpcategory
- O24.4Gestational diabetes mellituscategory
- O24.8Oth pre-exist diabetes in pregnancy, chldbrth, and the puerpcategory
- O24.9Unsp diabetes in pregnancy, childbirth and the puerperiumcategory
Where this code sits
- Parent code
- O24
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ICD-10-CM FY2026. Centers for Medicare & Medicaid Services (CMS) / National Center for Health Statistics (NCHS), “2026 ICD-10-CM Code Descriptions in Tabular Order” (icd10cm_order_2026.txt). Download the original file from cms.gov. Public domain (US Government work). Descriptors, billable flags and instructional notes on this page are reproduced from that file without modification. Krasyn adds no clinical guidance.