O10.01
Non-Billable
ChapterO00–O9A
Ranksubcategory
Official Description
Pre-existing essential hypertension complicating pregnancy
Metadata & Insights
- •2026 ICD-10-CM Edition - Effective October 1, 2025.
- •Non-billable category (requires more specific sub-code).
- •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)
O10-O16Edema, proteinuria and hypertensive disorders in pregnancy, childbirth and the puerperium (O10-O16)
O10Pre-existing hypertension complicating pregnancy, childbirth and the puerperium
O10.0Pre-existing essential hypertension complicating pregnancy, childbirth and the puerperium
O10.01Pre-existing essential hypertension complicating pregnancy
O10.011Pre-existing essential hypertension complicating pregnancy, first trimester
O10.012Pre-existing essential hypertension complicating pregnancy, second trimester
O10.013Pre-existing essential hypertension complicating pregnancy, third trimester
O10.019Pre-existing essential hypertension complicating pregnancy, unspecified trimester
Applicable Ancestor Context
The following parent sections contain instructions or notes that apply to O10.01:
subcategoryO10.0
Pre-existing essential hypertension complicating pregnancy, childbirth and the puerperium
View context instructionscategoryO10
Pre-existing hypertension complicating pregnancy, childbirth and the puerperium
View context instructionsAlphabetic Index Mentions
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