ICD-10-CM Book 2026 Edition

Chapters  /  Chapter 13  /  M50-M54

Other dorsopathies (M50-M54)

Excludes1: current injury - see injury of spine by body region
discitis NOS (M46.4-)
M50 Cervical disc disorders
Includes cervicothoracic disc disorders with cervicalgia
cervicothoracic disc disorders
M50.0 Cervical disc disorder with myelopathy
M50.00 Cervical disc disorder with myelopathy, unspecified cervical region
M50.01 Cervical disc disorder with myelopathy, high cervical region
C2-C3 disc disorder with myelopathy
C3-C4 disc disorder with myelopathy
M50.02 Cervical disc disorder with myelopathy, mid-cervical region
M50.020 Cervical disc disorder with myelopathy, mid-cervical region, unspecified level
M50.021 Cervical disc disorder at C4-C5 level with myelopathy
C4-C5 disc disorder with myelopathy
M50.022 Cervical disc disorder at C5-C6 level with myelopathy
C5-C6 disc disorder with myelopathy
M50.023 Cervical disc disorder at C6-C7 level with myelopathy
C6-C7 disc disorder with myelopathy
M50.03 Cervical disc disorder with myelopathy, cervicothoracic region
C7-T1 disc disorder with myelopathy
M50.1 Cervical disc disorder with radiculopathy
Excludes2 brachial radiculitis NOS (M54.13)
M50.10 Cervical disc disorder with radiculopathy, unspecified cervical region
M50.11 Cervical disc disorder with radiculopathy, high cervical region
C2-C3 disc disorder with radiculopathy
C3 radiculopathy due to disc disorder
C3-C4 disc disorder with radiculopathy
C4 radiculopathy due to disc disorder
M50.12 Cervical disc disorder with radiculopathy, mid-cervical region
M50.120 Mid-cervical disc disorder, unspecified level
M50.121 Cervical disc disorder at C4-C5 level with radiculopathy
C4-C5 disc disorder with radiculopathy
C5 radiculopathy due to disc disorder
M50.122 Cervical disc disorder at C5-C6 level with radiculopathy
C5-C6 disc disorder with radiculopathy
C6 radiculopathy due to disc disorder
M50.123 Cervical disc disorder at C6-C7 level with radiculopathy
C6-C7 disc disorder with radiculopathy
C7 radiculopathy due to disc disorder
M50.13 Cervical disc disorder with radiculopathy, cervicothoracic region
C7-T1 disc disorder with radiculopathy
C8 radiculopathy due to disc disorder
M50.2 Other cervical disc displacement
M50.20 Other cervical disc displacement, unspecified cervical region
M50.21 Other cervical disc displacement, high cervical region
Other C2-C3 cervical disc displacement
Other C3-C4 cervical disc displacement
M50.22 Other cervical disc displacement, mid-cervical region
M50.220 Other cervical disc displacement, mid-cervical region, unspecified level
M50.221 Other cervical disc displacement at C4-C5 level
Other C4-C5 cervical disc displacement
M50.222 Other cervical disc displacement at C5-C6 level
Other C5-C6 cervical disc displacement
M50.223 Other cervical disc displacement at C6-C7 level
Other C6-C7 cervical disc displacement
M50.23 Other cervical disc displacement, cervicothoracic region
Other C7-T1 cervical disc displacement
M50.3 Other cervical disc degeneration
M50.30 Other cervical disc degeneration, unspecified cervical region
M50.31 Other cervical disc degeneration, high cervical region
Other C2-C3 cervical disc degeneration
Other C3-C4 cervical disc degeneration
M50.32 Other cervical disc degeneration, mid-cervical region
M50.320 Other cervical disc degeneration, mid-cervical region, unspecified level
M50.321 Other cervical disc degeneration at C4-C5 level
Other C4-C5 cervical disc degeneration
M50.322 Other cervical disc degeneration at C5-C6 level
Other C5-C6 cervical disc degeneration
M50.323 Other cervical disc degeneration at C6-C7 level
Other C6-C7 cervical disc degeneration
M50.33 Other cervical disc degeneration, cervicothoracic region
Other C7-T1 cervical disc degeneration
M50.8 Other cervical disc disorders
M50.80 Other cervical disc disorders, unspecified cervical region
M50.81 Other cervical disc disorders, high cervical region
Other C2-C3 cervical disc disorders
Other C3-C4 cervical disc disorders
M50.82 Other cervical disc disorders, mid-cervical region
M50.820 Other cervical disc disorders, mid-cervical region, unspecified level
M50.821 Other cervical disc disorders at C4-C5 level
Other C4-C5 cervical disc disorders
M50.822 Other cervical disc disorders at C5-C6 level
Other C5-C6 cervical disc disorders
M50.823 Other cervical disc disorders at C6-C7 level
Other C6-C7 cervical disc disorders
M50.83 Other cervical disc disorders, cervicothoracic region
Other C7-T1 cervical disc disorders
M50.9 Cervical disc disorder, unspecified
M50.90 Cervical disc disorder, unspecified, unspecified cervical region
M50.91 Cervical disc disorder, unspecified, high cervical region
C2-C3 cervical disc disorder, unspecified
C3-C4 cervical disc disorder, unspecified
M50.92 Cervical disc disorder, unspecified, mid-cervical region
M50.920 Unspecified cervical disc disorder, mid-cervical region, unspecified level
M50.921 Unspecified cervical disc disorder at C4-C5 level
Unspecified C4-C5 cervical disc disorder
M50.922 Unspecified cervical disc disorder at C5-C6 level
Unspecified C5-C6 cervical disc disorder
M50.923 Unspecified cervical disc disorder at C6-C7 level
Unspecified C6-C7 cervical disc disorder
M50.93 Cervical disc disorder, unspecified, cervicothoracic region
C7-T1 cervical disc disorder, unspecified
M51 Thoracic, thoracolumbar, and lumbosacral intervertebral disc disorders
Excludes2 cervical and cervicothoracic disc disorders (M50.-)
sacral and sacrococcygeal disorders (M53.3)
M51.0 Thoracic, thoracolumbar and lumbosacral intervertebral disc disorders with myelopathy
M51.04 Intervertebral disc disorders with myelopathy, thoracic region
M51.05 Intervertebral disc disorders with myelopathy, thoracolumbar region
M51.06 Intervertebral disc disorders with myelopathy, lumbar region
M51.1 Thoracic, thoracolumbar and lumbosacral intervertebral disc disorders with radiculopathy
Sciatica due to intervertebral disc disorder
Excludes1 lumbar radiculitis NOS (M54.16)
sciatica NOS (M54.3)
M51.14 Intervertebral disc disorders with radiculopathy, thoracic region
M51.15 Intervertebral disc disorders with radiculopathy, thoracolumbar region
M51.16 Intervertebral disc disorders with radiculopathy, lumbar region
M51.17 Intervertebral disc disorders with radiculopathy, lumbosacral region
M51.2 Other thoracic, thoracolumbar and lumbosacral intervertebral disc displacement
Lumbago due to displacement of intervertebral disc
M51.24 Other intervertebral disc displacement, thoracic region
M51.25 Other intervertebral disc displacement, thoracolumbar region
M51.26 Other intervertebral disc displacement, lumbar region
M51.27 Other intervertebral disc displacement, lumbosacral region
M51.3 Other thoracic, thoracolumbar and lumbosacral intervertebral disc degeneration
M51.34 Other intervertebral disc degeneration, thoracic region
M51.35 Other intervertebral disc degeneration, thoracolumbar region
M51.36 Other intervertebral disc degeneration, lumbar region
M51.360 Other intervertebral disc degeneration, lumbar region with discogenic back pain only
Other intervertebral disc degeneration, lumbar region with axial back pain only
M51.361 Other intervertebral disc degeneration, lumbar region with lower extremity pain only
Other intervertebral disc degeneration, lumbar region with leg pain only
Other intervertebral disc degeneration, lumbar region with referred sclerotomal pain only
M51.362 Other intervertebral disc degeneration, lumbar region with discogenic back pain and lower extremity pain
Other intervertebral disc degeneration, lumbar region with discogenic back pain and leg pain
Other intervertebral disc degeneration, lumbar region with axial back pain and referred sclerotomal pain
M51.369 Other intervertebral disc degeneration, lumbar region without mention of lumbar back pain or lower extremity pain
Other intervertebral disc degeneration, lumbar region without mention of lumbar back pain or leg pain
Other intervertebral disc degeneration, lumbar region, NOS
M51.37 Other intervertebral disc degeneration, lumbosacral region
M51.370 Other intervertebral disc degeneration, lumbosacral region with discogenic back pain only
Other intervertebral disc degeneration, lumbosacral region with axial back pain only
M51.371 Other intervertebral disc degeneration, lumbosacral region with lower extremity pain only
Other intervertebral disc degeneration, lumbosacral region with leg pain only
Other intervertebral disc degeneration, lumbosacral region with referred sclerotomal pain only
M51.372 Other intervertebral disc degeneration, lumbosacral region with discogenic back pain and lower extremity pain
Other intervertebral disc degeneration, lumbosacral region with discogenic back pain and leg pain
Other intervertebral disc degeneration, lumbosacral region with axial back pain and referred sclerotomal pain
M51.379 Other intervertebral disc degeneration, lumbosacral region without mention of lumbar back pain or lower extremity pain
Other intervertebral disc degeneration, lumbosacral region without mention of lumbar back pain or leg pain
Other intervertebral disc degeneration, lumbosacral region, NOS
M51.4 Schmorl's nodes
M51.44 Schmorl's nodes, thoracic region
M51.45 Schmorl's nodes, thoracolumbar region
M51.46 Schmorl's nodes, lumbar region
M51.47 Schmorl's nodes, lumbosacral region
M51.8 Other thoracic, thoracolumbar and lumbosacral intervertebral disc disorders
M51.84 Other intervertebral disc disorders, thoracic region
M51.85 Other intervertebral disc disorders, thoracolumbar region
M51.86 Other intervertebral disc disorders, lumbar region
M51.87 Other intervertebral disc disorders, lumbosacral region
M51.9 Unspecified thoracic, thoracolumbar and lumbosacral intervertebral disc disorder
M51.A Other lumbar and lumbosacral annulus fibrosus disc defects
M51.A0 Intervertebral annulus fibrosus defect, lumbar region, unspecified size
CodeFirst , if applicable, lumbar disc herniation (M51.06, M51.16, M51.26)
M51.A1 Intervertebral annulus fibrosus defect, small, lumbar region
CodeFirst , if applicable, lumbar disc herniation (M51.06, M51.16, M51.26)
M51.A2 Intervertebral annulus fibrosus defect, large, lumbar region
CodeFirst , if applicable, lumbar disc herniation (M51.06, M51.16, M51.26)
M51.A3 Intervertebral annulus fibrosus defect, lumbosacral region, unspecified size
CodeFirst , if applicable, lumbosacral disc herniation (M51.17, M51.27)
M51.A4 Intervertebral annulus fibrosus defect, small, lumbosacral region
CodeFirst , if applicable, lumbosacral disc herniation (M51.17, M51.27)
M51.A5 Intervertebral annulus fibrosus defect, large, lumbosacral region
CodeFirst , if applicable, lumbosacral disc herniation (M51.17, M51.27)
M53 Other and unspecified dorsopathies, not elsewhere classified
M53.0 Cervicocranial syndrome
Posterior cervical sympathetic syndrome
M53.1 Cervicobrachial syndrome
Excludes2 cervical disc disorder (M50.-)
thoracic outlet syndrome (G54.0)
M53.2 Spinal instabilities
M53.2X Spinal instabilities
M53.2X1 Spinal instabilities, occipito-atlanto-axial region
M53.2X2 Spinal instabilities, cervical region
M53.2X3 Spinal instabilities, cervicothoracic region
M53.2X4 Spinal instabilities, thoracic region
M53.2X5 Spinal instabilities, thoracolumbar region
M53.2X6 Spinal instabilities, lumbar region
M53.2X7 Spinal instabilities, lumbosacral region
M53.2X8 Spinal instabilities, sacral and sacrococcygeal region
M53.2X9 Spinal instabilities, site unspecified
M53.3 Sacrococcygeal disorders, not elsewhere classified
Coccygodynia
M53.8 Other specified dorsopathies
M53.80 Other specified dorsopathies, site unspecified
M53.81 Other specified dorsopathies, occipito-atlanto-axial region
M53.82 Other specified dorsopathies, cervical region
M53.83 Other specified dorsopathies, cervicothoracic region
M53.84 Other specified dorsopathies, thoracic region
M53.85 Other specified dorsopathies, thoracolumbar region
M53.86 Other specified dorsopathies, lumbar region
M53.87 Other specified dorsopathies, lumbosacral region
M53.88 Other specified dorsopathies, sacral and sacrococcygeal region
M53.9 Dorsopathy, unspecified
M54 Dorsalgia
Excludes1 psychogenic dorsalgia (F45.41)
M54.0 Panniculitis affecting regions of neck and back
Excludes1 lupus panniculitis (L93.2)
panniculitis NOS (M79.3)
relapsing [Weber-Christian] panniculitis (M35.6)
M54.00 Panniculitis affecting regions of neck and back, site unspecified
M54.01 Panniculitis affecting regions of neck and back, occipito-atlanto-axial region
M54.02 Panniculitis affecting regions of neck and back, cervical region
M54.03 Panniculitis affecting regions of neck and back, cervicothoracic region
M54.04 Panniculitis affecting regions of neck and back, thoracic region
M54.05 Panniculitis affecting regions of neck and back, thoracolumbar region
M54.06 Panniculitis affecting regions of neck and back, lumbar region
M54.07 Panniculitis affecting regions of neck and back, lumbosacral region
M54.08 Panniculitis affecting regions of neck and back, sacral and sacrococcygeal region
M54.09 Panniculitis affecting regions, neck and back, multiple sites in spine
M54.1 Radiculopathy
Brachial neuritis or radiculitis NOS
Lumbar neuritis or radiculitis NOS
Lumbosacral neuritis or radiculitis NOS
Thoracic neuritis or radiculitis NOS
Radiculitis NOS
Excludes1 neuralgia and neuritis NOS (M79.2)
radiculopathy with cervical disc disorder (M50.1)
radiculopathy with lumbar and other intervertebral disc disorder (M51.1-)
radiculopathy with spondylosis (M47.2-)
M54.10 Radiculopathy, site unspecified
M54.11 Radiculopathy, occipito-atlanto-axial region
M54.12 Radiculopathy, cervical region
M54.13 Radiculopathy, cervicothoracic region
M54.14 Radiculopathy, thoracic region
M54.15 Radiculopathy, thoracolumbar region
M54.16 Radiculopathy, lumbar region
M54.17 Radiculopathy, lumbosacral region
M54.18 Radiculopathy, sacral and sacrococcygeal region
M54.2 Cervicalgia
Excludes1 cervicalgia due to intervertebral cervical disc disorder (M50.-)
M54.3 Sciatica
Excludes1 intervertebral disc degeneration, lumbar region with lower extremity pain only (M51.361)
intervertebral disc degeneration, lumbosacral region with lower extremity pain only (M51.371)
lesion of sciatic nerve (G57.0)
sciatica due to intervertebral disc disorder (M51.1-)
sciatica with lumbago (M54.4-)
M54.30 Sciatica, unspecified side
M54.31 Sciatica, right side
M54.32 Sciatica, left side
M54.4 Lumbago with sciatica
Excludes1 intervertebral disc degeneration, lumbar region with discogenic back pain and lower extremity pain (M51.362)
intervertebral disc degeneration, lumbosacral region with discogenic back pain and lower extremity pain (M51.372)
lumbago with sciatica due to intervertebral disc disorder (M51.1-)
M54.40 Lumbago with sciatica, unspecified side
M54.41 Lumbago with sciatica, right side
M54.42 Lumbago with sciatica, left side
M54.5 Low back pain
Excludes1 intervertebral disc degeneration, lumbar region with discogenic back pain only (M51.360)
intervertebral disc degeneration, lumbosacral region with discogenic back pain only (M51.370)
low back strain (S39.012)
lumbago due to intervertebral disc displacement (M51.2-)
lumbago with sciatica (M54.4-)
M54.50 Low back pain, unspecified
Loin pain
Lumbago NOS
M54.51 Vertebrogenic low back pain
Low back vertebral endplate pain
M54.59 Other low back pain
M54.6 Pain in thoracic spine
Excludes1 pain in thoracic spine due to intervertebral disc disorder (M51.-)
M54.8 Other dorsalgia
Excludes1 dorsalgia in thoracic region (M54.6)
low back pain (M54.5-)
M54.81 Occipital neuralgia
M54.89 Other dorsalgia
M54.9 Dorsalgia, unspecified
Backache NOS
Back pain NOS