O24.012

Billable
ChapterO00–O9A
Ranksubcategory
Official Description

Pre-existing type 1 diabetes mellitus, in pregnancy, second trimester

Metadata & Insights
  • 2026 ICD-10-CM Edition - Effective October 1, 2025.
  • Billable/specific code (valid for reimbursement).
  • Chapter 15: Pregnancy, Childbirth and the Puerperium (O00-O9A).
General instructions are available for the parent sections:

Clinical Hierarchy

CH15Pregnancy, childbirth and the puerperium (O00-O9A)
O20-O29Other maternal disorders predominantly related to pregnancy (O20-O29)
O24Diabetes mellitus in pregnancy, childbirth, and the puerperium
O24.0Pre-existing type 1 diabetes mellitus, in pregnancy, childbirth and the puerperium
O24.01Pre-existing type 1 diabetes mellitus, in pregnancy
O24.012Pre-existing type 1 diabetes mellitus, in pregnancy, second trimester

Applicable Ancestor Context

The following parent sections contain instructions or notes that apply to O24.012:

subcategoryO24.0
Pre-existing type 1 diabetes mellitus, in pregnancy, childbirth and the puerperium
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blockO20-O29
Other maternal disorders predominantly related to pregnancy (O20-O29)
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chapterCH15
Pregnancy, childbirth and the puerperium (O00-O9A)
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MS-DRG Classification

2026 v43.1

Cross Reference

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