Panniculitis aff regions, neck/bk, multiple sites in spine

This code represents inflammation of the subcutaneous fat (panniculitis) specifically located in the neck and back regions, indicating involvement at multiple spinal sites. It describes a non-infectious inflammatory process affecting the adipose tissue beneath the skin in these areas.

Use this code when documentation clearly indicates panniculitis affecting both the neck and back, with further specification of involvement at multiple sites along the spine. Supporting documentation should include physician notes detailing the location and nature of the inflammation.

• Ensure documentation specifies both "neck" and "back" involvement, along with "multiple sites in spine."
• Differentiate from localized panniculitis (e.g., M54.01-M54.08) which would be coded based on a single spinal region.
• Code any underlying cause of the panniculitis (e.g., autoimmune disease) as a primary diagnosis if applicable, with this code as a secondary diagnosis.