O10.43 – Pre-existing secondary hypertension 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 O10.43

Code: O10.43 (claims format: O1043)
Description: Pre-existing secondary hypertension complicating the puerperium
Short description: Pre-existing secondary hypertension 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: O10 › O10.4

Notes inherited from parent codes

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

O10 – Pre-existing hypertension complicating pregnancy, childbirth and the puerperium

Includes:

pre-existing hypertension with pre-existing proteinuria complicating pregnancy, childbirth and the puerperium

Excludes2 (not included here):

pre-existing hypertension with superimposed pre-eclampsia complicating pregnancy, childbirth and the puerperium (O11.-)

O10.4 – Pre-existing secondary hypertension complicating pregnancy, childbirth and the puerperium

Applicable to:

Any condition in I15 specified as a reason for obstetric care during pregnancy, childbirth or the puerperium

Use additional code:

code from I15 to identify the type of secondary hypertension

Index terms for O10.43

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

Hypertension, hypertensive, complicating, puerperium, pre-existing, secondary

Related codes in O10.4

Frequently asked questions

What is ICD-10 code O10.43?

O10.43 is the ICD-10-CM code for pre-existing secondary hypertension complicating the puerperium, in the block O10-O16 (Edema, proteinuria and hypertensive disorders in pregnancy, childbirth and the puerperium).

Is O10.43 a billable code?

Yes. O10.43 is a billable/specific code that can be used to indicate a diagnosis for reimbursement purposes.

What category does O10.43 belong to?

It belongs to category O10 – Pre-existing hypertension complicating pregnancy, childbirth and the puerperium.

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.