O10.41 – Pre-existing secondary hypertension complicating pregnancy

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

Non-billable header

ICD-10-CM code O10.41

Code: O10.41 (claims format: O1041)
Description: Pre-existing secondary hypertension complicating pregnancy
Billable: No – use a more specific code below
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

Billable codes under O10.41

O10.41 is a header code and cannot be used on claims. Choose the most specific code:

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 O10.41

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

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

Related codes in O10.4

Frequently asked questions

What is ICD-10 code O10.41?

O10.41 is the ICD-10-CM code for pre-existing secondary hypertension complicating pregnancy, in the block O10-O16 (Edema, proteinuria and hypertensive disorders in pregnancy, childbirth and the puerperium).

Is O10.41 a billable code?

No. O10.41 is a header code with more specific child codes; report one of the billable codes listed above.

What category does O10.41 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.