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  2. ICD-10-CM Codes List
  3. L00–L99
  4. L60-L75
  5. Follicular cysts of skin and subcutaneous tissue (L72)

Follicular cysts of skin and subcutaneous tissue (L72)

ICD-10 codes L72 through L72.9 cover various types of follicular cysts of the skin and subcutaneous tissue, such as epidermal, pilar, and sebaceous cysts. These codes are used to classify specific cyst conditions for accurate diagnosis and treatment documentation.

These codes help medical coders identify precise types of skin cysts. For example, L72.0 refers to epidermal cysts, commonly known by terms like "epidermoid cyst" or "milia," including cysts in locations such as the breast or scalp. The L72.1 series includes pilar cysts (or trichilemmal cysts), usually found on the scalp. L72.2 denotes steatocystoma multiplex, a condition involving multiple sebaceous cysts, sometimes associated with natal teeth syndrome. L72.3 identifies sebaceous cysts, described also as masses or cysts on fingers, eyelids, or scrotum. Other follicular cysts that don’t fit these categories fall under L72.8, while L72.9 is used when the follicular cyst is unspecified. Understanding these distinctions supports selecting the correct ICD-10 code for conditions described by synonyms like "cyst of skin," "epidermoid cyst," or "pilar cyst," aiding clarity in medical records and billing.

Clinical Terms

The following clinical terms provide additional context, helping users better understand the clinical background and common associations for each diagnosis listed in this section. Including related terms alongside ICD-10-CM codes supports coders, billers, and healthcare professionals in improving accuracy, enhancing documentation, and facilitating research or patient education.

Epidermal Cyst

Intradermal or subcutaneous saclike structure, the wall of which is stratified epithelium containing keratohyalin granules.

Steatocystoma Multiplex

A disorder characterized by multiple, wide spread cutaneous cysts that often become inflamed and rupture. It is caused by the same mutations in the gene coding for KRT-17 that are causative mutations for Pachyonychia congenita, Type 2. Natal teeth involvement is sometimes associated with steatocystoma multiplex.