Panniculitis affecting regions of neck/bk, thoracolum region

This code represents inflammation of the subcutaneous fat (panniculitis) specifically located in the thoracolumbar region of the back. It signifies a localized inflammatory process affecting the adipose tissue beneath the skin in this particular anatomical area.

Use this code when documentation clearly indicates panniculitis affecting the lower back, including the thoracic and lumbar spine areas. This diagnosis is typically supported by physical examination findings of tender nodules or plaques in the thoracolumbar region, often accompanied by imaging studies or biopsy results confirming subcutaneous fat inflammation.

• Ensure the documentation specifies the "thoracolumbar region" to accurately assign this code, as other M54.0 subcategories exist for different back regions.
• Do not confuse with M54.5 (Low back pain) unless panniculitis is explicitly diagnosed as the cause of the pain.
• Consider an additional code for the underlying cause of the panniculitis if known (e.g., autoimmune disease, infection, trauma).