I27.20 — Pulmonary hypertension, unspecified

I27.20

ICD-10 Chapter 9: Circulatory System — illustrative image — Chapter 9: Diseases of the circulatory system (I00–I99) — illustrative image

What this code means

Pulmonary hypertension is raised blood pressure in the arteries of the lungs, straining the right side of the heart.

Also called: pulmonary hypertension.

When this code is used

Used for pulmonary hypertension when the type is not specified.

Where it sits in ICD-10-CM

Code I27.20 belongs to Chapter 9: Diseases of the circulatory system, which covers codes I00–I99 in the FY2027 ICD-10-CM tabular list. The official description above is copied verbatim from the CDC/NCHS FY2027 code file.

Related symptoms

Related anatomy

Frequently asked questions

What is ICD-10-CM code I27.20?

I27.20 is the ICD-10-CM diagnosis code for “Pulmonary hypertension, unspecified”. Pulmonary hypertension is raised blood pressure in the arteries of the lungs, straining the right side of the heart.

When is code I27.20 used?

Used for pulmonary hypertension when the type is not specified. It belongs to Chapter 9 of ICD-10-CM (Diseases of the circulatory system).

This guide explains ICD-10-CM codes in plain language for patients, students and other readers. It is educational information only — not coding, billing or medical advice. The code recorded for any real encounter is assigned from the full clinical documentation by the treating team and qualified coders, and only they can decide which code fits a specific case.