Other secondary osteonecrosis, right finger(s)

This diagnosis code signifies the presence of bone tissue death in one or more fingers of the right hand, which is not due to a primary bone disease but rather a consequence of another underlying condition. This osteonecrosis is not further specified as being due to drugs, previous trauma, or dysbarism.

Apply this code when documentation clearly indicates secondary osteonecrosis affecting the right finger(s), and the specific cause (e.g., drug-induced, post-traumatic) is not identified or is not one of the more specific M87.1 or M87.2 subcategories. Supporting documentation should detail the affected finger(s) and the secondary nature of the osteonecrosis.

• Ensure the documentation specifies "right finger(s)" to justify laterality.
• Distinguish from primary osteonecrosis (M87.0-) and more specific secondary causes like drug-induced (M87.1-) or post-traumatic (M87.2-).
• Always sequence an underlying condition code first if it is the cause of the secondary osteonecrosis.