O11.5 – Pre-existing hypertension with pre-eclampsia, complicating the puerperium

ICD-10-CM 2027 diagnosis code · Edema, proteinuria and hypertensive disorders in pregnancy, childbirth and the puerperium

Billable code

ICD-10-CM code O11.5

Code: O11.5 (claims format: O115)
Description: Pre-existing hypertension with pre-eclampsia, complicating the puerperium
Short description: Pre-existing htn with pre-eclampsia, comp the puerperium
Billable: Yes – valid for HIPAA-covered transactions
Valid for: Dates of service October 1, 2026 – September 30, 2027 (FY2027)
Chapter: 15. Pregnancy, childbirth and the puerperium (O00-O9A)
Block: O10-O16 Edema, proteinuria and hypertensive disorders in pregnancy, childbirth and the puerperium
Parent codes: O11

Notes inherited from parent codes

Instructional notes at a category or block level apply to every code below it.

O11 – Pre-existing hypertension with pre-eclampsia

Includes:

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

Index terms for O11.5

Entries in the ICD-10-CM alphabetic index that lead to this code:

Hypertension, hypertensive, complicating, puerperium, pre-existing, pre-existing, with, pre-eclampsia

Related codes in O11

Frequently asked questions

What is ICD-10 code O11.5?

O11.5 is the ICD-10-CM code for pre-existing hypertension with pre-eclampsia, complicating the puerperium, in the block O10-O16 (Edema, proteinuria and hypertensive disorders in pregnancy, childbirth and the puerperium).

Is O11.5 a billable code?

Yes. O11.5 is a billable/specific code that can be used to indicate a diagnosis for reimbursement purposes.

What category does O11.5 belong to?

It belongs to category O11 – Pre-existing hypertension with pre-eclampsia.

Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.