ICD-10 Code D18 – Hemangioma and lymphangioma, any site (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code D18 – Hemangioma and lymphangioma, any site
What it is
D18 identifies benign vascular or lymphatic growths, including hemangiomas and lymphangiomas, at any body site. Use it when the record documents one of these lesions without a more specific site or subtype code.
Clinical signs
These lesions may appear as soft tissue masses, skin discoloration, or swelling, depending on location and depth. Clinical features vary; refer to documentation for the exact type, site, and whether the lesion is congenital or acquired.
When to use this code
Use D18 when the provider documents hemangioma or lymphangioma and no more specific ICD-10-CM code is available in the record. It also fits unspecified site reporting when the note does not identify the affected location. Check documentation if the lesion is described as a different vascular anomaly.
Do not use for
Do not use D18 for malignant tumors, inflammatory skin lesions, or nonspecific cysts. If the record names a specific anatomic site or a more precise vascular lesion code, use that instead.
Coding tip
Confirm the exact lesion type and site in the note before assigning D18.