I73.0

Non-billable

Raynaud's syndrome

I73.0 is the ICD-10-CM code for Raynaud's syndrome. It is a non-billable category code — use a more specific child code such as I73.00 for billing.

Status
Header (non-billable)
Chapter
I00-I99
Parent
I73
Subcodes
2
Edition
FY2026

I00-I99 Diseases of the circulatory system

What this means — in plain language

MedlinePlus · NIH

What is Raynaud phenomenon? Raynaud phenomenon is a condition that affects your blood vessels (the tubes that your blood flows through). It causes your blood vessels to narrow, which decreases blood flow. This is called a Raynaud episode or "attack." The attacks usually affect your fingers and toes, causing them to become cold and numb. They may also change color, usually to white or blue. These attacks happen in…

Read more about Raynaud Phenomenon at MedlinePlus ↗

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

Includes

  • Raynaud's disease
  • Raynaud's phenomenon (secondary)

Medications indicated for this condition

FDA labeling

Drugs whose FDA labeling lists this condition's category among its indications. Informational only — not a treatment recommendation or medical advice.

Conditions mapped to this code

MedlinePlus · NIH

Plain-language health-topic references grounded in MedlinePlus (NIH/NLM).

Frequently asked questions

What is ICD-10 code I73.0?
I73.0 is the ICD-10-CM code for "Raynaud's syndrome". It falls under I00-I99 Diseases of the circulatory system.
Is I73.0 a billable code?
No — I73.0 is a non-billable header code. Use a more specific child code (such as I73.00) for billing.
What are the subcodes of I73.0?
I73.0 has 2 more specific child codes, including I73.00, I73.01.

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

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