I1A.0
I1A.0: Resistant hypertension
Billable / specific codeICD-10-CM
I1A.0 is a billable, specific ICD-10-CM code for resistant hypertension. It is valid for submission on a claim.
Check I1A.0 with the rest of the claim: free scrubberCode first
The underlying condition must be sequenced before this code.
Inclusion terms
Alternative wordings a physician may use in the chart for this same code.
- Apparent treatment resistant hypertension
- Treatment resistant hypertension
- True resistant hypertension
Risk adjustment
No CMS-HCC V28 category: this code does not change a RAF score.
Medicare coverage
I1A.0 is named in 17 Medicare coverage policies: 17 listing it as supporting medical necessity. Which one applies depends on your Medicare contractor.
- A53026Billing and Coding: Bariatric Surgery Coverage
- A56422Billing and Coding: Bariatric Surgical Management of Morbid Obesity
- A56605Billing and Coding: B-type Natriuretic Peptide (BNP) Testing
- A56675Billing and Coding: Homocysteine Level, Serum
Alphabetic index entries that lead here
- Hypertension, hypertensive›resistant(apparent treatment) (treatment) (true)
Code history
Unchanged in every release from FY2024 to FY2027.