I11 – Hypertensive heart disease

ICD-10-CM 2027 diagnosis code · Hypertensive diseases

Non-billable header

ICD-10-CM code I11
Code
I11 (claims format: I11)
Description
Hypertensive heart disease
Billable
No – use a more specific code below
Valid for
Dates of service October 1, 2026 – September 30, 2027 (FY2027)
Chapter
9. Diseases of the circulatory system (I00-I99)
Block
I10-I1A Hypertensive diseases

Billable codes under I11

I11 is a header code and cannot be used on claims. Choose the most specific code:

Notes for I11

Includes:

Notes inherited from parent codes

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

Block I10-I1A

Excludes1 (not coded here):
  • neonatal hypertension (P29.2)
  • primary pulmonary hypertension (I27.0)
Excludes2 (not included here):
  • hypertensive disease complicating pregnancy, childbirth and the puerperium (O10-O11, O13-O16)
Use additional code:
  • code to identify:
  • exposure to environmental tobacco smoke (Z77.22)
  • history of tobacco dependence (Z87.891)
  • occupational exposure to environmental tobacco smoke (Z57.31)
  • tobacco dependence (F17.-)
  • tobacco use (Z72.0)

Frequently asked questions

What is ICD-10 code I11?

I11 is the ICD-10-CM code for hypertensive heart disease, in the block I10-I1A (Hypertensive diseases).

Is I11 a billable code?

No. I11 is a header code with more specific child codes; report one of the billable codes listed above.

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.