ICD-10 Code C69.62 – Malignant neoplasm of left orbit (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code C69.62 – Malignant neoplasm of left orbit
What it is
C69.62 identifies a malignant tumor arising in the left orbit, the bony cavity that contains the eye and its supporting structures. Use it when documentation specifies a primary cancer of the left orbital region.
Clinical signs
Clinical features may include proptosis, pain, diplopia, restricted eye movement, or visible orbital mass. Clinical features vary; refer to documentation.
When to use this code
Use this code when the provider documents malignant neoplasm of the left orbit, including a primary orbital cancer or a left-sided orbital tumor confirmed as malignant. Apply it only when the record clearly identifies the left orbit as the site. If the site or laterality is unclear, check documentation.
Do not use for
Do not use C69.62 for benign orbital masses, inflammatory eye disease, or malignancies limited to the eyelid, conjunctiva, or globe. Do not assume laterality if the note does not specify the left side.
Coding tip
Verify both malignancy and left-sided orbital location in the pathology or provider note before assigning C69.62.