I27.0: Primary pulmonary hypertension
I27.0 is a billable, specific ICD-10-CM code for primary pulmonary hypertension. It is valid for submission on a claim.
Check I27.0 with the rest of the claim: free scrubberExcludes1: never code together
These conditions cannot occur together. Billing both on the same encounter is a denial.
Inclusion terms
Alternative wordings a physician may use in the chart for this same code.
- Heritable pulmonary arterial hypertension
- Idiopathic pulmonary arterial hypertension
- Primary group 1 pulmonary hypertension
- Primary pulmonary arterial hypertension
Risk adjustment
I27.0 risk-adjusts. Under the CMS-HCC V28 model it maps to this category:
- HCC 226 Heart Failure, Except End Stage and Acute0.360 RAF
Coefficient shown for the Community Non-dual Aged segment. A higher HCC in the same hierarchy will suppress this one, so capturing it does not always add score. Look up the whole chart to see which of its HCCs the hierarchy would zero.
Medicare coverage
I27.0 is named in 26 Medicare coverage policies: 26 listing it as supporting medical necessity. Which one applies depends on your Medicare contractor.
- A52466Nebulizers - Policy Article
- A52850Billing and Coding: Cardiac Catheterization and Coronary Angiography
- A56423Billing and Coding: Cardiology Non-emergent Outpatient Stress Testing
- A56451Billing and Coding: Cardiac Computed Tomography (CCT) and Coronary Computed Tomography Angiography (CCTA)
Alphabetic index entries that lead here
- Arrillaga-Ayerza syndrome(pulmonary sclerosis with pulmonary hypertension)
- Ayerza's disease or syndrome(pulmonary artery sclerosis with pulmonary hypertension)
- Cardiopathia nigra
- Arteriosclerosis, arteriosclerotic›pulmonary(idiopathic)
- Disease, diseased›Ayerza's(pulmonary artery sclerosis with pulmonary hypertension)
- Hypertension, hypertensive›lesser circulation
- Syndrome›Arrillaga-Ayerza
- Syndrome›Ayerza(-Arrillaga)
- Syndrome›cardiacos negros
- Disease, diseased›heart›black
- Hypertension, hypertensive›pulmonary›primary(idiopathic)
- Sclerosis, sclerotic›pulmonary›artery
Code history
Unchanged in every release from FY2024 to FY2027.