O10.0

Non-Billable
ChapterO00–O9A
Ranksubcategory
Official Description

Pre-existing essential hypertension complicating pregnancy, childbirth and the puerperium

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).

Instructional Notes

Includes
  • Any condition in I10 specified as a reason for obstetric care during pregnancy, childbirth or the puerperium
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
O10.02Pre-existing essential hypertension complicating childbirth
O10.03Pre-existing essential hypertension complicating the puerperium

Applicable Ancestor Context

The following parent sections contain instructions or notes that apply to O10.0:

categoryO10
Pre-existing hypertension complicating pregnancy, childbirth and the puerperium
View context instructions
chapterCH15
Pregnancy, childbirth and the puerperium (O00-O9A)
View context instructions

Alphabetic Index Mentions

These are Diagnosis Index lookup paths that route to O10.0. Use them as entry terms for search, then confirm final coding instructions in the Tabular List and notes above.

3 raw paths

MS-DRG Classification

2026

No direct MS-DRG triggers identified.

Cross Reference

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