ICD-10 Code D31.02 – Benign neoplasm of left conjunctiva (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code D31.02 – Benign neoplasm of left conjunctiva
What it is
D31.02 identifies a noncancerous tumor of the conjunctiva on the left eye. It indicates a benign growth arising from the thin membrane covering the white of the eye and inner eyelids.
Clinical signs
Clinical features vary; refer to documentation. Patients may have a visible conjunctival mass, localized redness, irritation, or a stable pigmented or nonpigmented lesion noted on eye exam.
When to use this code
Use D31.02 when the provider documents a benign neoplasm specifically in the left conjunctiva. It is appropriate for ophthalmology notes, pathology-confirmed benign lesions, or follow-up visits for a known left-sided conjunctival tumor.
Code from the provider’s anatomic and laterality documentation. If the lesion is described only as a conjunctival mass or growth without benign confirmation, check documentation before assigning this code.
Do not use for
Do not use this code for malignant conjunctival tumors, inflammatory lesions, or nonspecific eye irritation. If the site or benign nature is not documented, check documentation.
Coding tip
Verify both laterality and benign behavior in the chart before coding D31.02.