O10.91 Unspecified pre-existing hypertension complicating pregnancy

The ICD-10-CM code for Unspecified pre-existing hypertension complicating pregnancy is O10.91 (FY2026). It is a non-billable category code — select a more specific code below for claims.

Classification

Chapter

15: Pregnancy, childbirth and the puerperium (O00-O9A)

Section

O10-O16: Edema, proteinuria and hypertensive disorders in pregnancy, childbirth and the puerperium (O10-O16)

Category O10

49 codes (36 billable)

FY2026 Status

Stable since FY2024

Also Known As

ICD-10-CM Alphabetic Index entries that lead to O10.91:

• Hypertension, hypertensive (accelerated) (benign) (essential) (idiopathic) (malignant) (systemic) › complicating › pregnancy › pre-existing

References

• CMS — ICD-10-CM Official Code Set and Guidelines, FY2026
• CDC/NCHS — ICD-10-CM Files and Browser Tool

Cite This Page

Reference O10.91 with the canonical source and edition:

O10.91 — Unspecified pre-existing hypertension complicating pregnancy. ICD-10 Coding Pro (ICD-10-CM FY2026). https://icd10codingpro.com/codes/O10.91

Canonical URL: https://icd10codingpro.com/codes/O10.91