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Diseases of the musculoskeletal system and connective tissue (M00-M99)

Note:: Use an external cause code following the code for the musculoskeletal condition, if applicable, to identify the cause of the musculoskeletal condition

Excludes 2:: arthropathic psoriasis (L40.5-)
certain conditions originating in the perinatal period (P04-P96)
certain infectious and parasitic diseases (A00-B99)
compartment syndrome (traumatic) (T79.A-)
complications of pregnancy, childbirth and the puerperium (O00-O9A)
congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)
endocrine, nutritional and metabolic diseases (E00-E88)
injury, poisoning and certain other consequences of external causes (S00-T88)
neoplasms (C00-D49)
symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)

Other dorsopathies (M50-M54)

Excludes 1:: 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 [+]

M50.1

Cervical disc disorder with radiculopathy [+]

Excludes 2:

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 [+]

M50.13

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 [+]

M50.3

Other cervical disc degeneration [+]

M50.8

Other cervical disc disorders [+]

M50.9

Cervical disc disorder, unspecified [+]

M51

Thoracic, thoracolumbar, and lumbosacral intervertebral disc disorders [+]

Excludes 2:

cervical and cervicothoracic disc disorders (M50.-)
sacral and sacrococcygeal disorders (M53.3)

M51.0

Thoracic, thoracolumbar and lumbosacral intervertebral disc disorders with myelopathy [+]

M51.1

Thoracic, thoracolumbar and lumbosacral intervertebral disc disorders with radiculopathy [+]
Sciatica due to intervertebral disc disorder

Excludes 1:

lumbar radiculitis NOS (M54.16)
sciatica NOS (M54.3)

M51.2

Other thoracic, thoracolumbar and lumbosacral intervertebral disc displacement [+]
Lumbago due to displacement of intervertebral disc

M51.3

Other thoracic, thoracolumbar and lumbosacral intervertebral disc degeneration [+]

M51.4

Schmorl's nodes [+]

M51.8

Other thoracic, thoracolumbar and lumbosacral intervertebral disc disorders [+]

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

Code first

, if applicable, lumbar disc herniation (M51.06, M51.16, M51.26)

M51.A1

Intervertebral annulus fibrosus defect, small, lumbar region

Code first

, if applicable, lumbar disc herniation (M51.06, M51.16, M51.26)

M51.A2

Intervertebral annulus fibrosus defect, large, lumbar region

Code first

, if applicable, lumbar disc herniation (M51.06, M51.16, M51.26)

M51.A3

Intervertebral annulus fibrosus defect, lumbosacral region, unspecified size

Code first

, if applicable, lumbosacral disc herniation (M51.17, M51.27)

M51.A4

Intervertebral annulus fibrosus defect, small, lumbosacral region

Code first

, if applicable, lumbosacral disc herniation (M51.17, M51.27)

M51.A5

Intervertebral annulus fibrosus defect, large, lumbosacral region

Code first

, 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

Excludes 2:

cervical disc disorder (M50.-)
thoracic outlet syndrome (G54.0)

M53.2

Spinal instabilities [+]

M53.3

Sacrococcygeal disorders, not elsewhere classified
Coccygodynia

M53.8

Other specified dorsopathies [+]

M53.9

Dorsopathy, unspecified

M54

Dorsalgia [+]

Excludes 1:

psychogenic dorsalgia (F45.41)

M54.0

Panniculitis affecting regions of neck and back [+]

Excludes 1:

lupus panniculitis (L93.2)
panniculitis NOS (M79.3)
relapsing [Weber-Christian] panniculitis (M35.6)

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

Excludes 1:

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-)

M54.2

Cervicalgia

Excludes 1:

cervicalgia due to intervertebral cervical disc disorder (M50.-)

M54.3

Sciatica [+]

Excludes 1:

lesion of sciatic nerve (G57.0)
sciatica due to intervertebral disc disorder (M51.1-)
sciatica with lumbago (M54.4-)

M54.4

Lumbago with sciatica [+]

Excludes 1:

lumbago with sciatica due to intervertebral disc disorder (M51.1-)

M54.5

Low back pain [+]

Excludes 1:

low back strain (S39.012)
lumbago due to intervertebral disc displacement (M51.2-)
lumbago with sciatica (M54.4-)

M54.6

Pain in thoracic spine

Excludes 1:

pain in thoracic spine due to intervertebral disc disorder (M51.-)

M54.8

Other dorsalgia [+]

Excludes 1:

dorsalgia in thoracic region (M54.6)
low back pain (M54.5-)

M54.9

Dorsalgia, unspecified
Backache NOS
Back pain NOS