ICD-10 Code L72.0 – Epidermal cyst (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code L72.0 – Epidermal cyst
What it is
L72.0 identifies an epidermal cyst, a benign skin cyst filled with keratin. It usually forms in the dermis or subcutaneous tissue and is often called a “sebaceous cyst,” though that term is inaccurate.
Clinical signs
Typical findings include a slow-growing, round, movable skin nodule with a central punctum. It may be painless unless inflamed, ruptured, or infected; clinical features vary, refer to documentation.
When to use this code
Use L72.0 when the provider documents an epidermal cyst, epidermoid cyst, or similar equivalent term. It fits solitary or multiple cysts when the diagnosis is clearly stated in the record. Code from the documented diagnosis, not from appearance alone.
Do not use for
Do not use L72.0 for abscesses, lipomas, or other unspecified skin lumps. If the note describes a different cyst type or the diagnosis is unclear, check documentation.
Coding tip
Look for the exact provider term “epidermal” or “epidermoid” cyst before assigning L72.0.