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D31

Non-billable

Benign neoplasm of eye and adnexa

D31 is the ICD-10-CM code for Benign neoplasm of eye and adnexa. It is a non-billable category code — use a more specific child code such as D31.0 for billing.

Status
Header (non-billable)
Chapter
C00-D49
Subcodes
8
Edition
FY2026

C00-D49 Neoplasms

What this means — in plain language

MedlinePlus · NIH

Tumors are abnormal growths in your body. They can be either benign or malignant. Benign tumors aren't cancer. Malignant ones are. Benign tumors grow only in one place. They cannot spread or invade other parts of your body. Even so, they can be dangerous if they press on vital organs, such as your brain. Tumors are made up of extra cells. Normally, cells grow and divide to form new cells as your body needs them.…

Read more about Benign Tumors at MedlinePlus ↗
Eye Diseases ↗

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

Excludes1 — not coded here

  • •benign neoplasm of connective tissue of eyelid (D21.0)
  • •benign neoplasm of optic nerve (D33.3)
  • •benign neoplasm of skin of eyelid (D22.1-, D23.1-)

Frequently asked questions

What is ICD-10 code D31?
D31 is the ICD-10-CM code for "Benign neoplasm of eye and adnexa". It falls under C00-D49 Neoplasms.
Is D31 a billable code?
No — D31 is a non-billable header code. Use a more specific child code (such as D31.0) for billing.
What are the subcodes of D31?
D31 has 8 more specific child codes, including D31.0, D31.1, D31.2.
What is excluded from D31?
Excludes1 (not coded here): benign neoplasm of connective tissue of eyelid (D21.0); benign neoplasm of optic nerve (D33.3); benign neoplasm of skin of eyelid (D22.1-, D23.1-).

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

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