| M54.00 | Panniculitis affecting regions of neck and back, site unspecified | BILLABLE CODE |
| M54.01 | Panniculitis affecting regions of neck and back, occipito-atlanto-axial region | BILLABLE CODE |
| M54.02 | Panniculitis affecting regions of neck and back, cervical region | BILLABLE CODE |
| M54.03 | Panniculitis affecting regions of neck and back, cervicothoracic region | BILLABLE CODE |
| M54.04 | Panniculitis affecting regions of neck and back, thoracic region | BILLABLE CODE |
| M54.05 | Panniculitis affecting regions of neck and back, thoracolumbar region | BILLABLE CODE |
| M54.06 | Panniculitis affecting regions of neck and back, lumbar region | BILLABLE CODE |
| M54.07 | Panniculitis affecting regions of neck and back, lumbosacral region | BILLABLE CODE |
| M54.08 | Panniculitis affecting regions of neck and back, sacral and sacrococcygeal region | BILLABLE CODE |
| M54.09 | Panniculitis affecting regions, neck and back, multiple sites in spine | BILLABLE CODE |
