ICD-10 Code D31.90 – Benign neoplasm of unspecified part of unspecified eye (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code D31.90 – Benign neoplasm of unspecified part of unspecified eye
What it is
D31.90 identifies a noncancerous tumor of the eye when the exact part of the eye is not documented. It is used when the record confirms a benign ocular neoplasm but gives no more specific site.
Clinical signs
Clinical features vary; refer to documentation. Findings may include an eye mass or lesion noted on exam, imaging, or ophthalmology evaluation, but the chart must support a benign neoplasm.
When to use this code
Use D31.90 when the provider documents a benign neoplasm of the eye and does not specify the structure involved, such as conjunctiva, cornea, retina, or choroid. It also fits when laterality is not needed and the site remains unspecified. Code the most specific documented ocular location if available.
Do not use for
Do not use this code for malignant eye tumors, inflammatory lesions, cysts, or traumatic masses. If the documentation names a specific eye structure, choose the more precise benign neoplasm code instead.
Coding tip
If the note says only “benign eye tumor,” confirm whether the site is unspecified before assigning D31.90.