I27.20 ICD-10-CM Code: Pulmonary hypertension, unspecified
I27.20 is the billable ICD-10-CM code for “Pulmonary hypertension, unspecified” in the FY 2027 U.S. code set, effective Oct 1, 2026.
Official description
I27.20Pulmonary hypertension, unspecified
ICD-10-CM diagnosis code · United States clinical modification
More specific than I27.20
View subcategoryI27.20 is an unspecified code, for when the note doesn’t say more. If it documents the type, cause, or site, one of these codes may fit better.
Where I27.20 sits
- 1
Chapter 9
Diseases of the circulatory system (I00-I99)
- 2
Section
Pulmonary heart disease and diseases of pulmonary circulation (I26-I28)
- 3
Category I27
Other pulmonary heart diseases
- 4
Subcategory I27.2
Other secondary pulmonary hypertension
- 5
Code I27.20
Pulmonary hypertension, unspecified
Notes for this code
Inclusion terms
- Pulmonary hypertension NOS
Code first
No “code first” instruction is listed for I27.20.
Use additional code
No “use additional code” instruction is listed for I27.20.
Excludes1
Conditions that should not be reported together with this code.
No Excludes1 note is listed for I27.20.
Excludes2
Conditions not included here that may be reported separately when present.
No Excludes2 note is listed for I27.20.
Source and release
- Data release
- U.S. ICD-10-CM · FY 2027
- Effective date
- Oct 1, 2026
- Publisher
- Vero Scribe Inc.
This reference is generated from Vero’s ICD-10-CM description, hierarchy, and code-note dataset. The visible content and structured data share that source.
Frequently asked questions
What does ICD-10-CM code I27.20 mean?
I27.20 is the FY 2027 U.S. ICD-10-CM code for “Pulmonary hypertension, unspecified.”
Is I27.20 a billable or specific ICD-10-CM code?
Yes. In the FY 2027 reference data used on this page, I27.20 has no child codes and is presented as a billable/specific code. Always confirm the active code set and payer requirements before use.
Where is I27.20 located in ICD-10-CM?
I27.20 is listed in Chapter 9, Diseases of the circulatory system (I00-I99), within Pulmonary heart disease and diseases of pulmonary circulation (I26-I28) (I26–I28), under category I27, Other pulmonary heart diseases and subcategory I27.2, Other secondary pulmonary hypertension.
What coding notes are listed for I27.20?
Its listed inclusion terms are Pulmonary hypertension NOS. No code-first instruction is listed. No Excludes1 note is listed. No Excludes2 note is listed.