Osteitis condensans, left upper arm

This code signifies a non-inflammatory sclerosis of bone, specifically affecting the left upper arm. It represents a localized increase in bone density, often appearing as a radiopaque area on imaging, without evidence of infection or malignancy.

Apply this code when documentation explicitly states osteitis condensans in the left upper arm, typically identified through radiographic findings. This diagnosis is often made incidentally during imaging for other conditions or when investigating localized pain or discomfort in the region.

• Ensure laterality is clearly documented as "left upper arm" to support this specific code.
• Differentiate from osteomyelitis (M86.-) which involves infection, or other forms of osteosclerosis (M85.8-) which are generalized or due to other specified causes.
• Review imaging reports and physician notes for definitive diagnostic statements of osteitis condensans.