ICD-10 Code D17.3 – Benign lipomatous neoplasm of skin and subcutaneous tissue of other and unspecified sites (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code D17.3 – Benign lipomatous neoplasm of skin and subcutaneous tissue of other and unspecified sites
What it is
This code identifies a benign fatty tumor located in the skin or subcutaneous tissue at sites other than the trunk, head, neck, or limbs. It describes a noncancerous lipomatous growth; check documentation for the exact site.
Clinical signs
Typical findings include a soft, usually mobile, slow-growing subcutaneous mass. Clinical features vary; refer to documentation for location, size, and whether the lesion is symptomatic or incidental.
When to use this code
Use D17.3 when the provider documents a benign lipomatous neoplasm of the skin or subcutaneous tissue and the site is not otherwise specified in the code set. It also fits when the record states an unspecified other site and no more exact anatomic code is supported. If the lesion is described as lipoma or benign fatty tumor in eligible tissue, this code may apply.
Do not use for
Do not use this code for malignant soft-tissue tumors or for lipomas with a more specific site code available. Check documentation if the mass is deep, internal, or not clearly in skin or subcutaneous tissue.
Coding tip
Confirm the anatomic site first, because a more specific D17 code may be required when the location is documented.