ICD-10 Code D21.2 – Benign neoplasm of connective and other soft tissue of lower limb, including hip (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code D21.2 – Benign neoplasm of connective and other soft tissue of lower limb, including hip
What it is
D21.2 identifies a noncancerous tumor arising from connective or other soft tissue in the lower limb, including the hip. Use it when the provider documents a benign soft tissue neoplasm in that anatomic site.
Clinical signs
Findings often include a localized, slow-growing mass, swelling, or a palpable lump. Clinical features vary; refer to documentation for pathology, imaging, or exam details supporting a benign soft tissue lesion.
When to use this code
Use D21.2 when the record clearly states a benign neoplasm of soft tissue in the leg, foot, ankle, thigh, or hip region. It also fits when pathology or specialist assessment confirms a benign connective tissue tumor at that site.
If the documentation names the lesion as benign but does not specify exact histology, this code may still apply if the location is documented. Check documentation for laterality, site, and whether the mass is truly neoplastic rather than inflammatory or traumatic.
Do not use for
Do not use this code for malignant soft tissue tumors, uncertain behavior neoplasms, or cysts and abscesses. Also avoid it when the lesion is not in the lower limb or hip.
Coding tip
Code from the provider’s documented anatomic site and benign nature; if either is unclear, check documentation before assigning D21.2.