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2025 ICD-10-CM code D16.5

Benign neoplasm of the lower jaw bone (mandible).

Use additional codes from Chapter 4 to identify any associated functional activity.

Medical necessity for treatment depends on the size and location of the neoplasm, the presence of symptoms, and the potential impact on function and cosmesis.

Providers diagnose the condition based on the patient’s history and oral examination. The provider may perform a biopsy of the lesion for microscopic analysis. X–ray, MRI, and CT scan or bone scan help diagnose and plan treatment. Some benign tumors do not require treatment, but surgical removal or shaving of excess bone for cosmetic purposes may be required.

In simple words: A benign neoplasm of the lower jaw bone is a non-cancerous growth in the jawbone. It doesn't spread to other parts of the body.

Benign (noncancerous) neoplasm of the lower jaw bone (mandible) refers to a mass of abnormal cells that lacks the ability to penetrate neighboring tissues (metastasize).

Example 1: A patient presents with facial pain and loosening of teeth. After examination and imaging, a benign neoplasm of the mandible is diagnosed., A patient with a history of facial swelling undergoes a CT scan, which reveals a benign neoplasm of the lower jaw bone., During a routine dental check-up, a small, asymptomatic benign neoplasm is discovered on a patient's mandible.

Documentation should include details of the patient's symptoms, physical examination findings, imaging results, biopsy results (if performed), and treatment plan.

** Benign neoplasms of the bone may be caused by genetic predisposition, excessive growth hormones, previous fractures with a metal implant, and chronic local injury and inflammation. Though typically not life-threatening, they may interfere with normal function.

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