M45-M49
Medium Complexity

Spondylopathies

Primary Specialty: Rheumatology
Last Updated: 2025-09-10

ICD-10 Codes (200)

200 billable
0 category headers
M46
Billable
Other inflammatory spondylopathies
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M46.0
Billable
Spinal enthesopathy
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M46.00
Billable
Spinal enthesopathy, site unspecified
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M46.01
Billable
Spinal enthesopathy, occipito-atlanto-axial region
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M46.02
Billable
Spinal enthesopathy, cervical region
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M46.03
Billable
Spinal enthesopathy, cervicothoracic region
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M46.04
Billable
Spinal enthesopathy, thoracic region
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M46.05
Billable
Spinal enthesopathy, thoracolumbar region
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M46.06
Billable
Spinal enthesopathy, lumbar region
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M46.07
Billable
Spinal enthesopathy, lumbosacral region
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M46.08
Billable
Spinal enthesopathy, sacral and sacrococcygeal region
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M46.09
Billable
Spinal enthesopathy, multiple sites in spine
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M46.1
Billable
Sacroiliitis, not elsewhere classified
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M46.2
Billable
Osteomyelitis of vertebra
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M46.20
Billable
Osteomyelitis of vertebra, site unspecified
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M46.21
Billable
Osteomyelitis of vertebra, occipito-atlanto-axial region
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M46.22
Billable
Osteomyelitis of vertebra, cervical region
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M46.23
Billable
Osteomyelitis of vertebra, cervicothoracic region
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M46.24
Billable
Osteomyelitis of vertebra, thoracic region
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M46.25
Billable
Osteomyelitis of vertebra, thoracolumbar region
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M46.26
Billable
Osteomyelitis of vertebra, lumbar region
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M46.27
Billable
Osteomyelitis of vertebra, lumbosacral region
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M46.28
Billable
Osteomyelitis of vertebra, sacral and sacrococcygeal region
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M46.3
Billable
Infection of intervertebral disc (pyogenic)
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M46.30
Billable
Infection of intervertebral disc (pyogenic), site unspecified
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M46.31
Billable
Infection of intervertebral disc (pyogenic), occipito-atlanto-axial region
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M46.32
Billable
Infection of intervertebral disc (pyogenic), cervical region
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M46.33
Billable
Infection of intervertebral disc (pyogenic), cervicothoracic region
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M46.34
Billable
Infection of intervertebral disc (pyogenic), thoracic region
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M46.35
Billable
Infection of intervertebral disc (pyogenic), thoracolumbar region
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M46.36
Billable
Infection of intervertebral disc (pyogenic), lumbar region
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M46.37
Billable
Infection of intervertebral disc (pyogenic), lumbosacral region
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M46.38
Billable
Infection of intervertebral disc (pyogenic), sacral and sacrococcygeal region
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M46.39
Billable
Infection of intervertebral disc (pyogenic), multiple sites in spine
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M46.4
Billable
Discitis, unspecified
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M46.40
Billable
Discitis, unspecified, site unspecified
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M46.41
Billable
Discitis, unspecified, occipito-atlanto-axial region
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M46.42
Billable
Discitis, unspecified, cervical region
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M46.43
Billable
Discitis, unspecified, cervicothoracic region
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M46.44
Billable
Discitis, unspecified, thoracic region
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M46.45
Billable
Discitis, unspecified, thoracolumbar region
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M46.46
Billable
Discitis, unspecified, lumbar region
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M46.47
Billable
Discitis, unspecified, lumbosacral region
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M46.48
Billable
Discitis, unspecified, sacral and sacrococcygeal region
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M46.49
Billable
Discitis, unspecified, multiple sites in spine
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M46.5
Billable
Other infective spondylopathies
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M46.50
Billable
Other infective spondylopathies, site unspecified
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M46.51
Billable
Other infective spondylopathies, occipito-atlanto-axial region
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M46.52
Billable
Other infective spondylopathies, cervical region
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M46.53
Billable
Other infective spondylopathies, cervicothoracic region
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M46.54
Billable
Other infective spondylopathies, thoracic region
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M46.55
Billable
Other infective spondylopathies, thoracolumbar region
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M46.56
Billable
Other infective spondylopathies, lumbar region
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M46.57
Billable
Other infective spondylopathies, lumbosacral region
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M46.58
Billable
Other infective spondylopathies, sacral and sacrococcygeal region
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M46.59
Billable
Other infective spondylopathies, multiple sites in spine
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M46.8
Billable
Other specified inflammatory spondylopathies
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M46.80
Billable
Other specified inflammatory spondylopathies, site unspecified
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M46.81
Billable
Other specified inflammatory spondylopathies, occipito-atlanto-axial region
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M46.82
Billable
Other specified inflammatory spondylopathies, cervical region
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M46.83
Billable
Other specified inflammatory spondylopathies, cervicothoracic region
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M46.84
Billable
Other specified inflammatory spondylopathies, thoracic region
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M46.85
Billable
Other specified inflammatory spondylopathies, thoracolumbar region
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M46.86
Billable
Other specified inflammatory spondylopathies, lumbar region
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M46.87
Billable
Other specified inflammatory spondylopathies, lumbosacral region
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M46.88
Billable
Other specified inflammatory spondylopathies, sacral and sacrococcygeal region
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M46.89
Billable
Other specified inflammatory spondylopathies, multiple sites in spine
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M46.9
Billable
Unspecified inflammatory spondylopathy
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M46.90
Billable
Unspecified inflammatory spondylopathy, site unspecified
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M46.91
Billable
Unspecified inflammatory spondylopathy, occipito-atlanto-axial region
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M46.92
Billable
Unspecified inflammatory spondylopathy, cervical region
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M46.93
Billable
Unspecified inflammatory spondylopathy, cervicothoracic region
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M46.94
Billable
Unspecified inflammatory spondylopathy, thoracic region
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M46.95
Billable
Unspecified inflammatory spondylopathy, thoracolumbar region
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M46.96
Billable
Unspecified inflammatory spondylopathy, lumbar region
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M46.97
Billable
Unspecified inflammatory spondylopathy, lumbosacral region
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M46.98
Billable
Unspecified inflammatory spondylopathy, sacral and sacrococcygeal region
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M46.99
Billable
Unspecified inflammatory spondylopathy, multiple sites in spine
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M47
Billable
Spondylosis
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M47.0
Billable
Anterior spinal and vertebral artery compression syndromes
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M47.01
Billable
Anterior spinal artery compression syndromes
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M47.011
Billable
Anterior spinal artery compression syndromes, occipito-atlanto-axial region
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M47.012
Billable
Anterior spinal artery compression syndromes, cervical region
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M47.013
Billable
Anterior spinal artery compression syndromes, cervicothoracic region
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M47.014
Billable
Anterior spinal artery compression syndromes, thoracic region
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M47.015
Billable
Anterior spinal artery compression syndromes, thoracolumbar region
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M47.016
Billable
Anterior spinal artery compression syndromes, lumbar region
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M47.019
Billable
Anterior spinal artery compression syndromes, site unspecified
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M47.02
Billable
Vertebral artery compression syndromes
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M47.021
Billable
Vertebral artery compression syndromes, occipito-atlanto-axial region
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M47.022
Billable
Vertebral artery compression syndromes, cervical region
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M47.029
Billable
Vertebral artery compression syndromes, site unspecified
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M47.1
Billable
Other spondylosis with myelopathy
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M47.10
Billable
Other spondylosis with myelopathy, site unspecified
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M47.11
Billable
Other spondylosis with myelopathy, occipito-atlanto-axial region
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M47.12
Billable
Other spondylosis with myelopathy, cervical region
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M47.13
Billable
Other spondylosis with myelopathy, cervicothoracic region
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M47.14
Billable
Other spondylosis with myelopathy, thoracic region
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M47.15
Billable
Other spondylosis with myelopathy, thoracolumbar region
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M47.16
Billable
Other spondylosis with myelopathy, lumbar region
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M47.2
Billable
Other spondylosis with radiculopathy
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M47.20
Billable
Other spondylosis with radiculopathy, site unspecified
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M47.21
Billable
Other spondylosis with radiculopathy, occipito-atlanto-axial region
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M47.22
Billable
Other spondylosis with radiculopathy, cervical region
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M47.23
Billable
Other spondylosis with radiculopathy, cervicothoracic region
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M47.24
Billable
Other spondylosis with radiculopathy, thoracic region
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M47.25
Billable
Other spondylosis with radiculopathy, thoracolumbar region
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M47.26
Billable
Other spondylosis with radiculopathy, lumbar region
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M47.27
Billable
Other spondylosis with radiculopathy, lumbosacral region
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M47.28
Billable
Other spondylosis with radiculopathy, sacral and sacrococcygeal region
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M47.8
Billable
Other spondylosis
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M47.81
Billable
Spondylosis without myelopathy or radiculopathy
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M47.811
Billable
Spondylosis without myelopathy or radiculopathy, occipito-atlanto-axial region
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M47.812
Billable
Spondylosis without myelopathy or radiculopathy, cervical region
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M47.813
Billable
Spondylosis without myelopathy or radiculopathy, cervicothoracic region
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M47.814
Billable
Spondylosis without myelopathy or radiculopathy, thoracic region
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M47.815
Billable
Spondylosis without myelopathy or radiculopathy, thoracolumbar region
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M47.816
Billable
Spondylosis without myelopathy or radiculopathy, lumbar region
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M47.817
Billable
Spondylosis without myelopathy or radiculopathy, lumbosacral region
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M47.818
Billable
Spondylosis without myelopathy or radiculopathy, sacral and sacrococcygeal region
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M47.819
Billable
Spondylosis without myelopathy or radiculopathy, site unspecified
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M47.89
Billable
Other spondylosis
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M47.891
Billable
Other spondylosis, occipito-atlanto-axial region
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M47.892
Billable
Other spondylosis, cervical region
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M47.893
Billable
Other spondylosis, cervicothoracic region
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M47.894
Billable
Other spondylosis, thoracic region
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M47.895
Billable
Other spondylosis, thoracolumbar region
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M47.896
Billable
Other spondylosis, lumbar region
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M47.897
Billable
Other spondylosis, lumbosacral region
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M47.898
Billable
Other spondylosis, sacral and sacrococcygeal region
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M47.899
Billable
Other spondylosis, site unspecified
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M47.9
Billable
Spondylosis, unspecified
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M48
Billable
Other spondylopathies
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M48.0
Billable
Spinal stenosis
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M48.00
Billable
Spinal stenosis, site unspecified
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M48.01
Billable
Spinal stenosis, occipito-atlanto-axial region
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M48.02
Billable
Spinal stenosis, cervical region
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M48.03
Billable
Spinal stenosis, cervicothoracic region
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M48.04
Billable
Spinal stenosis, thoracic region
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M48.05
Billable
Spinal stenosis, thoracolumbar region
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M48.06
Billable
Spinal stenosis, lumbar region
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M48.061
Billable
Spinal stenosis, lumbar region without neurogenic claudication
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M48.062
Billable
Spinal stenosis, lumbar region with neurogenic claudication
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M48.07
Billable
Spinal stenosis, lumbosacral region
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M48.08
Billable
Spinal stenosis, sacral and sacrococcygeal region
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M48.1
Billable
Ankylosing hyperostosis [Forestier]
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M48.10
Billable
Ankylosing hyperostosis [Forestier], site unspecified
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M48.11
Billable
Ankylosing hyperostosis [Forestier], occipito-atlanto-axial region
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M48.12
Billable
Ankylosing hyperostosis [Forestier], cervical region
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M48.13
Billable
Ankylosing hyperostosis [Forestier], cervicothoracic region
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M48.14
Billable
Ankylosing hyperostosis [Forestier], thoracic region
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M48.15
Billable
Ankylosing hyperostosis [Forestier], thoracolumbar region
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M48.16
Billable
Ankylosing hyperostosis [Forestier], lumbar region
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M48.17
Billable
Ankylosing hyperostosis [Forestier], lumbosacral region
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M48.18
Billable
Ankylosing hyperostosis [Forestier], sacral and sacrococcygeal region
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M48.19
Billable
Ankylosing hyperostosis [Forestier], multiple sites in spine
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M48.2
Billable
Kissing spine
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M48.20
Billable
Kissing spine, site unspecified
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M48.21
Billable
Kissing spine, occipito-atlanto-axial region
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M48.22
Billable
Kissing spine, cervical region
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M48.23
Billable
Kissing spine, cervicothoracic region
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M48.24
Billable
Kissing spine, thoracic region
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M48.25
Billable
Kissing spine, thoracolumbar region
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M48.26
Billable
Kissing spine, lumbar region
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M48.27
Billable
Kissing spine, lumbosacral region
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M48.3
Billable
Traumatic spondylopathy
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M48.30
Billable
Traumatic spondylopathy, site unspecified
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M48.31
Billable
Traumatic spondylopathy, occipito-atlanto-axial region
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M48.32
Billable
Traumatic spondylopathy, cervical region
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M48.33
Billable
Traumatic spondylopathy, cervicothoracic region
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M48.34
Billable
Traumatic spondylopathy, thoracic region
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M48.35
Billable
Traumatic spondylopathy, thoracolumbar region
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M48.36
Billable
Traumatic spondylopathy, lumbar region
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M48.37
Billable
Traumatic spondylopathy, lumbosacral region
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M48.38
Billable
Traumatic spondylopathy, sacral and sacrococcygeal region
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M48.4
Billable
Fatigue fracture of vertebra
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M48.40
Billable
Fatigue fracture of vertebra, site unspecified
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M48.41
Billable
Fatigue fracture of vertebra, occipito-atlanto-axial region
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M48.42
Billable
Fatigue fracture of vertebra, cervical region
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M48.43
Billable
Fatigue fracture of vertebra, cervicothoracic region
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M48.44
Billable
Fatigue fracture of vertebra, thoracic region
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M48.45
Billable
Fatigue fracture of vertebra, thoracolumbar region
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M48.46
Billable
Fatigue fracture of vertebra, lumbar region
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M48.47
Billable
Fatigue fracture of vertebra, lumbosacral region
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M48.48
Billable
Fatigue fracture of vertebra, sacral and sacrococcygeal region
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M48.5
Billable
Collapsed vertebra, not elsewhere classified
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M48.50
Billable
Collapsed vertebra, not elsewhere classified, site unspecified
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M48.51
Billable
Collapsed vertebra, not elsewhere classified, occipito-atlanto-axial region
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M48.52
Billable
Collapsed vertebra, not elsewhere classified, cervical region
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M48.53
Billable
Collapsed vertebra, not elsewhere classified, cervicothoracic region
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M48.54
Billable
Collapsed vertebra, not elsewhere classified, thoracic region
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M48.55
Billable
Collapsed vertebra, not elsewhere classified, thoracolumbar region
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M48.56
Billable
Collapsed vertebra, not elsewhere classified, lumbar region
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M48.57
Billable
Collapsed vertebra, not elsewhere classified, lumbosacral region
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M48.58
Billable
Collapsed vertebra, not elsewhere classified, sacral and sacrococcygeal region
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M48.8
Billable
Other specified spondylopathies
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M48.9
Billable
Spondylopathy, unspecified
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M49
Billable
Spondylopathies in diseases classified elsewhere
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M49.8
Billable
Spondylopathy in diseases classified elsewhere
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M49.80
Billable
Spondylopathy in diseases classified elsewhere, site unspecified
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Updates & Changes

FY 2026 Updates

Current Year

Deleted Codes

No codes deleted in this range for FY 2026

No significant changes for FY 2026

This range maintains stability with current coding practices

Historical Changes

  • •FY 2025: Routine maintenance updates with minor terminology clarifications
  • •FY 2024: Enhanced specificity requirements for certain code ranges
  • •FY 2023: Updated documentation guidelines for improved clarity

Upcoming Changes

  • •Proposed updates pending review by Coordination and Maintenance Committee
  • •Under consideration: Enhanced digital health integration codes

Implementation Guidance

  • •Review all FY 2026 updates for M45-M49 codes before implementation
  • •Always verify the most current codes in the ICD-10-CM manual
  • •Ensure clinical documentation supports the selected diagnosis codes
  • +3 more guidance items...

Range Overview

high priority

The ICD-10 code range M45-M49 is dedicated to Spondylopathies, a group of diseases affecting the vertebral column. This range includes conditions such as ankylosing spondylitis, other inflammatory spondylopathies, spondylosis, other spondylopathies, and disorders of the sacrum. These codes are used to document diagnoses related to these conditions in medical records and billing systems.

Key Usage Points:

  • •M45 is used for Ankylosing spondylitis.
  • •M46 covers other inflammatory spondylopathies.
  • •M47 is for Spondylosis.
  • •M48 is used for Other spondylopathies.
  • •M49 is for Disorders of the sacrum.

Coding Guidelines

When to Use:

  • ✓When a patient is diagnosed with ankylosing spondylitis.
  • ✓When a patient has a non-specific inflammatory spondylopathy.
  • ✓When a patient is diagnosed with spondylosis.
  • ✓When a patient has a non-specific spondylopathy.
  • ✓When a patient has a disorder of the sacrum.

When NOT to Use:

  • ✗When a patient has a condition not related to the vertebral column.
  • ✗When a patient has a spinal cord injury.
  • ✗When a patient has a congenital spinal condition.
  • ✗When a patient has a neoplasm of the spine.
  • ✗When a patient has a spinal condition due to trauma.

Code Exclusions

Always verify the patient's condition with the provider before coding.

Documentation Requirements

Documentation for spondylopathies should include a clear diagnosis, the specific type of spondylopathy, the location of the condition, and any related symptoms or complications. The provider's notes should also include any relevant medical history, physical examination findings, and diagnostic test results.

Clinical Information:

  • •Clear diagnosis
  • •Specific type of spondylopathy
  • •Location of the condition
  • •Related symptoms or complications
  • •Relevant medical history

Supporting Evidence:

  • •Physical examination findings
  • •Diagnostic test results
  • •Imaging studies
  • •Consultation notes
Good Documentation Example:

Patient diagnosed with ankylosing spondylitis. Pain and stiffness in lower back. Positive HLA-B27 antigen. X-ray shows sacroiliac joint inflammation.

Poor Documentation Example:

Patient has back pain.

Common Documentation Errors:

  • âš Not specifying the type of spondylopathy
  • âš Not documenting the location of the condition
  • âš Not including related symptoms or complications
  • âš Not providing supporting evidence

Range Statistics

6
Total Codes
200
Billable
Complexity:
Medium
Primary Use:Clinical Documentation
Chapter:13

Coding Complexity

Medium
Complexity Rating

Coding for spondylopathies can be moderately complex due to the variety of conditions included in this range, the need to specify the location of the condition, the potential for related symptoms and complications, the need for supporting evidence, and the potential for co-existing conditions.

Key Factors:
  • â–¸Variety of spondylopathies
  • â–¸Need to specify location
  • â–¸Potential for related symptoms and complications
  • â–¸Need for supporting evidence
  • â–¸Potential for co-existing conditions

Specialty Focus

Spondylopathies are most commonly diagnosed and treated by specialists in rheumatology, orthopedics, and neurology. These conditions can also be relevant to primary care providers, physical therapists, and pain management specialists.

Primary Specialties:
Rheumatology
40%
Orthopedics
30%
Neurology
20%
Clinical Scenarios:
  • • A patient with chronic back pain is diagnosed with ankylosing spondylitis.
  • • A patient with neck pain and numbness in the hands is diagnosed with cervical spondylosis.
  • • A patient with a history of psoriasis presents with lower back pain and is diagnosed with psoriatic spondylitis.
  • • A patient with a history of inflammatory bowel disease presents with sacroiliac joint pain and is diagnosed with enteropathic spondylitis.
  • • A patient with a history of trauma to the sacrum presents with chronic pain and is diagnosed with post-traumatic sacral disorder.

Resources & References

Resources for coding spondylopathies include the official ICD-10 coding guidelines, clinical reference materials, and educational materials on spondylopathies and ICD-10 coding.

Official Guidelines:

  • ICD-10-CM Official Guidelines for Coding and Reporting
  • American Health Information Management Association (AHIMA) Coding Guidelines
  • Centers for Medicare & Medicaid Services (CMS) ICD-10 Provider Resources

Clinical References:

  • American College of Rheumatology Guidelines
  • American Academy of Orthopaedic Surgeons Clinical Practice Guidelines
  • American Academy of Neurology Practice Guidelines

Educational Materials:

  • AHIMA ICD-10 Training Materials
  • CMS ICD-10 Educational Resources
  • American Academy of Professional Coders (AAPC) ICD-10 Resources

Frequently Asked Questions

Can I use a code from this range for a patient with a spinal cord injury?

No, spinal cord injuries are not included in this range. Use a code from the S14 range instead.