Osteonecrosis due to drugs, jaw

This code signifies the death of bone tissue in the jaw, specifically attributed to the use of certain medications. This condition, often painful, can lead to exposed bone, infection, and impaired jaw function. It is a serious adverse effect primarily associated with antiresorptive agents and some anti-angiogenic drugs.

Apply this code when documentation clearly states osteonecrosis of the jaw and explicitly links its etiology to drug therapy. This diagnosis is typically made by an oral surgeon or dentist based on clinical examination, patient history of medication use, and imaging studies. Supporting documentation should specify the drug class implicated.

• Ensure the documentation explicitly states "due to drugs" to differentiate from other causes of osteonecrosis.
• Do not confuse with osteomyelitis of the jaw, which is an infection of the bone, though osteonecrosis can lead to secondary infection.
• Code any associated complications, such as infection (e.g., K10.21 for osteomyelitis of jaw), separately.