| M54 | Dorsalgia | NON-BILLABLE CODE |
| M54.0 | Panniculitis affecting regions of neck and back | NON-BILLABLE CODE |
| 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 |
| M54.09 | Panniculitis affecting regions, neck and back, multiple sites in spine | BILLABLE CODE |
| M54.1 | Radiculopathy | NON-BILLABLE CODE |
| M54.10 | Radiculopathy, site unspecified | BILLABLE CODE |
| M54.11 | Radiculopathy, occipito-atlanto-axial region | BILLABLE CODE |
| M54.12 | Radiculopathy, cervical region | BILLABLE CODE |
| M54.13 | Radiculopathy, cervicothoracic region | BILLABLE CODE |
| M54.14 | Radiculopathy, thoracic region | BILLABLE CODE |
| M54.15 | Radiculopathy, thoracolumbar region | BILLABLE CODE |
| M54.16 | Radiculopathy, lumbar region | BILLABLE CODE |
| M54.17 | Radiculopathy, lumbosacral region | BILLABLE CODE |
| M54.18 | Radiculopathy, sacral and sacrococcygeal region | BILLABLE CODE |
| M54.2 | Cervicalgia | BILLABLE CODE |
| M54.3 | Sciatica | NON-BILLABLE CODE |
| M54.30 | Sciatica, unspecified side | BILLABLE CODE |
| M54.31 | Sciatica, right side | BILLABLE CODE |
| M54.32 | Sciatica, left side | BILLABLE CODE |
| M54.4 | Lumbago with sciatica | NON-BILLABLE CODE |
| M54.40 | Lumbago with sciatica, unspecified side | BILLABLE CODE |
| M54.41 | Lumbago with sciatica, right side | BILLABLE CODE |
| M54.42 | Lumbago with sciatica, left side | BILLABLE CODE |
| M54.5 | Low back pain | NON-BILLABLE CODE |
| M54.50 | Low back pain, unspecified | BILLABLE CODE |
| M54.51 | Vertebrogenic low back pain | BILLABLE CODE |
| M54.59 | Other low back pain | BILLABLE CODE |
| M54.6 | Pain in thoracic spine | BILLABLE CODE |
| M54.8 | Other dorsalgia | NON-BILLABLE CODE |
| M54.81 | Occipital neuralgia | BILLABLE CODE |
| M54.89 | Other dorsalgia | BILLABLE CODE |
| M54.9 | Dorsalgia, unspecified | BILLABLE CODE |
