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I27.0

Billable

Primary pulmonary hypertension

I27.0 is the ICD-10-CM code for Primary pulmonary hypertension. It is a billable, specific code valid for reimbursement.

Status
Billable
Chapter
I00-I99
Parent
I27
Edition
FY2026

I00-I99 Diseases of the circulatory system

Includes

  • •Heritable pulmonary arterial hypertension
  • •Idiopathic pulmonary arterial hypertension
  • •Primary group 1 pulmonary hypertension
  • •Primary pulmonary arterial hypertension

Excludes1 — not coded here

  • •persistent pulmonary hypertension of newborn (P29.30)
  • •pulmonary hypertension NOS (I27.20)
  • •secondary pulmonary arterial hypertension (I27.21)
  • •secondary pulmonary hypertension (I27.29)

Frequently asked questions

What is ICD-10 code I27.0?
I27.0 is the ICD-10-CM code for "Primary pulmonary hypertension". It falls under I00-I99 Diseases of the circulatory system.
Is I27.0 a billable code?
Yes — I27.0 is a billable, specific ICD-10-CM code valid for reimbursement.
What is excluded from I27.0?
Excludes1 (not coded here): persistent pulmonary hypertension of newborn (P29.30); pulmonary hypertension NOS (I27.20); secondary pulmonary arterial hypertension (I27.21); secondary pulmonary hypertension (I27.29).

Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.

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