M54.04 Panniculitis affecting regions of neck and back, thoracic region
ICD-10-CM · CMS code reference
M54.04 is panniculitis, inflammation of the fat layer under the skin, in the neck and back area at the thoracic region (the mid back). If it is documented as lupus panniculitis, use L93.2 instead.
Coding notes
From the ICD-10-CM FY2027 (effective October 1, 2026) tabular list. Notes on a parent code or category apply here too.
Excludes1
Not coded together with this code. The exception is when the two conditions are unrelated to each other.
- lupus panniculitis (L93.2)
- panniculitis NOS (M79.3)
- relapsing [Weber-Christian] panniculitis (M35.6)
- psychogenic dorsalgia (F45.41)
- current injury - see injury of spine by body region
- discitis NOS (M46.4-)
Related codes
M54.00Panniculitis affecting regions of neck and back, site unspecified ICD-10-CMM54.01Panniculitis affecting regions of neck and back, occipito-atlanto-axial region ICD-10-CMM54.02Panniculitis affecting regions of neck and back, cervical region ICD-10-CMM54.03Panniculitis affecting regions of neck and back, cervicothoracic region ICD-10-CMM54.05Panniculitis affecting regions of neck and back, thoracolumbar region ICD-10-CMM54.06Panniculitis affecting regions of neck and back, lumbar region ICD-10-CMM54.07Panniculitis affecting regions of neck and back, lumbosacral region ICD-10-CMM54.08Panniculitis affecting regions of neck and back, sacral and sacrococcygeal region ICD-10-CM
Common questions
Is M54.04 a billable code?
Yes. M54.04 is a billable ICD-10-CM code in the ICD-10-CM FY2027 (effective October 1, 2026) code set.