ICD-10 Code D31.1 – Benign neoplasm of cornea (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code D31.1 – Benign neoplasm of cornea
What it is
D31.1 identifies a noncancerous growth arising from the cornea, the clear front surface of the eye. Use it when documentation states a benign corneal neoplasm or tumor.
Clinical signs
Clinical features vary; refer to documentation. A corneal lesion may be seen on exam, and the record should support that it is benign rather than inflammatory, traumatic, or malignant.
When to use this code
Use D31.1 when the provider documents a benign neoplasm of the cornea, including a confirmed mass or lesion classified as nonmalignant. It may be assigned from ophthalmology assessment, pathology, or operative documentation. If the note only says “corneal lesion” or “spot,” check documentation.
Do not use for
Do not use this code for malignant corneal tumors, inflammatory corneal disorders, or traumatic corneal injuries. If the diagnosis is uncertain or another corneal condition is documented, verify the record before coding.
Coding tip
Code only when the benign corneal neoplasm is explicitly documented; otherwise, query for clarification.