I27.0 – Primary pulmonary hypertension
ICD-10-CM 2027 diagnosis code · Pulmonary heart disease and diseases of pulmonary circulation
ICD-10-CM code
I27.0
- Code
I27.0(claims format:I270)- Description
- Primary pulmonary hypertension
- Billable
- Yes – valid for HIPAA-covered transactions
- Valid for
- Dates of service October 1, 2026 – September 30, 2027 (FY2027)
- Chapter
- 9. Diseases of the circulatory system (I00-I99)
- Block
- I26-I28 Pulmonary heart disease and diseases of pulmonary circulation
- Parent codes
- I27
Notes for I27.0
Applicable to:
- Heritable pulmonary arterial hypertension
- Idiopathic pulmonary arterial hypertension
- Primary group 1 pulmonary hypertension
- Primary pulmonary arterial hypertension
Index terms for I27.0
Entries in the ICD-10-CM alphabetic index that lead to this code:
- Syndrome, Ayerza
- Cardiopathia nigra
- Arrillaga-Ayerza syndrome
- Syndrome, Arrillaga-Ayerza
- Syndrome, cardiacos negros
- Disease, diseased, Ayerza's
- Ayerza's disease or syndrome
- Disease, diseased, heart, black
- Syndrome, pulmonary, arteriosclerosis
- Sclerosis, sclerotic, pulmonary, artery
- Arteriosclerosis, arteriosclerotic, pulmonary
- Hypertension, hypertensive, lesser circulation
- Hypertension, hypertensive, pulmonary, primary
- Disease, diseased, pulmonary, hypertensive, primary
Related codes in I27
Frequently asked questions
What is ICD-10 code I27.0?
I27.0 is the ICD-10-CM code for primary pulmonary hypertension, in the block I26-I28 (Pulmonary heart disease and diseases of pulmonary circulation).
Is I27.0 a billable code?
Yes. I27.0 is a billable/specific code that can be used to indicate a diagnosis for reimbursement purposes.
What category does I27.0 belong to?
It belongs to category I27 – Other pulmonary heart diseases.
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.