ICD-10 Code D21.22 – Benign neoplasm of connective and other soft tissue of left lower limb, including hip (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code D21.22 – Benign neoplasm of connective and other soft tissue of left lower limb, including hip
What it is
This code identifies a noncancerous tumor arising from connective or other soft tissue in the left lower limb, including the hip. It tells you the lesion is benign and specifically located on the left side.
Clinical signs
Findings may include a palpable soft-tissue mass, localized swelling, or discomfort. Clinical features vary; refer to documentation and pathology or imaging when available.
When to use this code
Use this code when the provider documents a benign neoplasm in the left leg or hip soft tissues and laterality is clear. It also fits when imaging or biopsy supports a benign soft-tissue tumor at that site. If the record only says “mass” or “lesion,” check documentation before coding.
Do not use for
Do not use it for malignant tumors, uncertain behavior, or inflammatory swellings. It is also incorrect when the lesion is in a different body site or laterality is not documented.
Coding tip
Confirm both benign behavior and left-sided location in the note before assigning D21.22.