I37

Non-billable

Nonrheumatic pulmonary valve disorders

I37 is the ICD-10-CM code for Nonrheumatic pulmonary valve disorders. It is a non-billable category code — use a more specific child code such as I37.0 for billing.

Status
Header (non-billable)
Chapter
I00-I99
Subcodes
5
Edition
FY2026

I00-I99 Diseases of the circulatory system

What this means — in plain language

MedlinePlus · NIH

What are heart valve diseases? Heart valve disease happens when one or more of your heart valves don't work well. Your heart has four valves: the tricuspid, pulmonary, mitral, and aortic valves. The valves have flaps that open and close. The flaps make sure that blood flows in the right direction through your heart and to the rest of your body. When your heart beats, the flaps open to let blood through. Between…

Read more about Heart Valve Diseases at MedlinePlus ↗

Source: U.S. National Library of Medicine (MedlinePlus). Informational only — not medical advice.

Excludes1 — not coded here

  • pulmonary valve disorder specified as congenital (Q22.1, Q22.2, Q22.3)
  • pulmonary valve disorder specified as rheumatic (I09.89)

Frequently asked questions

What is ICD-10 code I37?
I37 is the ICD-10-CM code for "Nonrheumatic pulmonary valve disorders". It falls under I00-I99 Diseases of the circulatory system.
Is I37 a billable code?
No — I37 is a non-billable header code. Use a more specific child code (such as I37.0) for billing.
What are the subcodes of I37?
I37 has 5 more specific child codes, including I37.0, I37.1, I37.2.
What is excluded from I37?
Excludes1 (not coded here): pulmonary valve disorder specified as congenital (Q22.1, Q22.2, Q22.3); pulmonary valve disorder specified as rheumatic (I09.89).

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

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