I1A.0Billable
Resistant hypertension
- Chapter
- 9. Diseases of the circulatory system
- Category
- I1A
- Effective date
- October 1, 2026
Related codes in category I1A
Frequently asked questions
What is ICD-10 code I1A.0?
I1A.0 is an ICD-10-CM diagnosis code for Resistant hypertension.
Is I1A.0 a billable code?
Yes. I1A.0 is billable and specific enough to be used on a claim.
What ICD-10-CM chapter is I1A.0 in?
I1A.0 falls under Chapter 9: Diseases of the circulatory system.
When did I1A.0 become effective?
I1A.0 has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.
What other codes are related to I1A.0?
I1A.0 belongs to category I1A, which includes 1 other code — see the related codes list on this page.
ICD-10-CM data maintained by CDC/CMS (public domain). Always verify codes with authoritative sources before making coding or billing decisions.