ICD-10-CM O11: Pre-existing hypertension with pre-eclampsia

ICD-10-CM Diagnosis Code (2025)

Official Description for O11

Pre-existing hypertension with pre-eclampsia

Coding Notes & Guidelines for O11

Includes Notes
  • conditions in O10 complicated by pre-eclampsia
  • pre-eclampsia superimposed pre-existing hypertension
Use Additional Code

code from O10 to identify the type of hypertension

Child Codes (More Specific Codes for O11):

O11.1 - Pre-existing hypertension with pre-eclampsia, first trimester O11.2 - Pre-existing hypertension with pre-eclampsia, second trimester O11.3 - Pre-existing hypertension with pre-eclampsia, third trimester O11.4 - Pre-existing hypertension with pre-eclampsia, complicating childbirth O11.5 - Pre-existing hypertension with pre-eclampsia, complicating the puerperium O11.9 - Pre-existing hypertension with pre-eclampsia, unspecified trimester

About ICD-10-CM Code O11 (Pre-existing hypertension with pre-eclampsia)

ICD-10-CM code O11 is a billable or specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. The 2025 edition of ICD-10-CM O11 became effective on October 1, 2024.

This page provides detailed information about O11 - Pre-existing hypertension with pre-eclampsia. It includes common terminology, coding guidelines such as "Includes," "Excludes1," and "Excludes2" notes, and information on required 7th characters. Utilizing this information correctly is essential for accurate medical coding and claims submission for conditions like Pre-existing hypertension with pre-eclampsia.