What is the ICD-10-CM code for pulmonary hypertension?

The primary ICD-10-CM code for pulmonary hypertension is I27.20 (Pulmonary hypertension, unspecified). There are 13 billable pulmonary hypertension codes in FY2027, covering different types and underlying causes.

How many ICD-10-CM codes are there for pulmonary hypertension?

There are 14 ICD-10-CM codes for pulmonary hypertension in the FY2027 tabular list, of which 13 are billable. These codes fall under Chapter 9 of the ICD-10-CM classification.

Which chapter covers pulmonary hypertension in ICD-10-CM?

Pulmonary Hypertension codes are classified in Chapter 9 of the ICD-10-CM tabular list: I00–I99 (Diseases of the Circulatory System).

Pulmonary Hypertension ICD-10-CM codes

ICD-10-CM codes for pulmonary hypertension by WHO group, including primary pulmonary arterial hypertension, pulmonary hypertension due to left heart or lung disease, and CTEPH.

14 codes, 13 billable. FY2027, valid from October 1, 2026. In chapter 9: Diseases of the Circulatory System.

How to code Pulmonary Hypertension

I27.20 is pulmonary hypertension, unspecified. Primary (idiopathic) pulmonary arterial hypertension is I27.0. The other codes follow the WHO groups: I27.21 secondary pulmonary arterial hypertension (group 1), I27.22 due to left heart disease (group 2), I27.23 due to lung disease and hypoxia (group 3), I27.24 chronic thromboembolic pulmonary hypertension (group 4), and I27.29 other secondary types (group 5).

Code the underlying condition as well when it is documented, such as heart failure I50.- with I27.22, or COPD J44.9 with I27.23. Add Z99.81 for dependence on supplemental oxygen.

Chronic cor pulmonale is I27.81 and Eisenmenger syndrome is I27.83. Pulmonary hypertension of the newborn is P29.30.

All Pulmonary Hypertension codes

More Condition Guides

Diabetes Mellitus Hypertension Pneumonia COPD Asthma Chronic Kidney Disease Heart Failure Atrial Fibrillation Sepsis GERD Urinary Tract Infection Stroke (Cerebral Infarction)All 335 guides