ICD-10 Code D31.0 – Benign neoplasm of conjunctiva (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code D31.0 – Benign neoplasm of conjunctiva
What it is
D31.0 identifies a noncancerous growth arising from the conjunctiva, the thin membrane covering the white of the eye and inner eyelids. It indicates a benign ocular neoplasm documented by the provider.
Clinical signs
Clinical features vary; refer to documentation. Commonly, a conjunctival lesion may appear as a visible mass, patch, or pigmented area, and the provider may note stability, growth, or concern for neoplasm.
When to use this code
Use D31.0 when the clinician documents a benign neoplasm of the conjunctiva, including a confirmed benign conjunctival tumor or lesion. Apply it when the diagnosis is established and the record identifies the conjunctiva as the site. If the note is vague or only describes a lesion, check documentation for the exact diagnosis.
Do not use for
Do not use this code for malignant conjunctival tumors, inflammatory lesions, or nonspecific eye findings without a benign neoplasm diagnosis. Check documentation if the site is not clearly conjunctival.
Coding tip
Verify both the benign nature and the conjunctival location before assigning D31.0.