Home > 2013 ICD-9-CM Diagnosis Codes > Diseases Of The Musculoskeletal System And Connective Tissue 710-739 > Dorsopathies 720-724 > Spondylosis and allied disorders 721-
2013 ICD-9-CM Diagnosis Code 721.90
Spondylosis of unspecified site, without mention of myelopathy
- group of related inflammatory, arthritic diseases of the joints in the spine sharing clinical and radiologic features and are associated with the MHC class I molecule HLA-B27 antigen.
- ICD-9-CM 721.90 is a billable medical code that can be used to specify a diagnosis on a reimbursement claim.
721.90 Alternative Terminology
- Arthritis of back
- Arthritis, back
- Disorder of joint of spine
- Localized spondylosis
- Localized, secondary spondylosis
- Osteoarthritis, spine, localized
- Osteoarthritis, spine, secondary, localized
- Secondary localized spondylosis
- Seronegative spondyloarthropathy
- Spondyloarthropathy
- Spondyloarthropathy, seronegative
- Spondyloarthropathy, undifferentiated
- Spondylosis of spine without myelopathy
- Spondylosis without myelopathy
- Spondylosis wo myelopathy
- Undifferentiated spondyloarthropathy
Applies To
- Spinal:
- arthritis (deformans) (degenerative) (hypertrophic)
- osteoarthritis NOS
- Spondylarthrosis NOS
Convert 721.90 to ICD-10-CM 

ICD-9-CM 721.90 converts approximately to:
- 2013 ICD-10-CM M47.819 Spondylosis without myelopathy or radiculopathy, site unspecified
ICD-9-CM Volume 2 Index entries containing back-references to 721.90:
- Arthritis, arthritic (acute) (chronic) (subacute) 716.9

back (see also Arthritis, spine) 721.90
degenerative (see also Osteoarthrosis) 715.9
spine 721.90
with myelopathy 721.91

atrophic 720.9

degenerative 721.90

with myelopathy 721.91

hypertrophic (with deformity) 721.90

with myelopathy 721.91

infectious or infective NEC 720.9

Marie-Strümpell 720.0

nonpyogenic 721.90

with myelopathy 721.91

pyogenic 720.9

rheumatoid 720.0

traumatic (old) 721.7

tuberculous (see also Tuberculosis) 015.0
[720.81
]
vertebral (see also Arthritis, spine) 721.90
- Arthrosis (deformans) (degenerative) (see also Osteoarthrosis) 715.9

spine (see also Spondylosis) 721.90
- Change(s) (of) - see also Removal of
- Degeneration, degenerative
articular cartilage NEC (see also Disorder, cartilage, articular) 718.0
changes, spine or vertebra (see also Spondylosis) 721.90
- Disease, diseased - see also Syndrome
joint NEC 719.9

ankle 719.97

Charcôt 094.0
[713.5
]
degenerative (see also Osteoarthrosis) 715.9


multiple 715.09


spine (see also Spondylosis) 721.90

elbow 719.92

foot 719.97

hand 719.94

hip 719.95

hypertrophic (chronic) (degenerative) (see also Osteoarthrosis) 715.9


spine (see also Spondylosis) 721.90

knee 719.96

Luschka 721.90
multiple sites 719.99

pelvic region 719.95

sacroiliac 724.6

shoulder (region) 719.91

specified site NEC 719.98

spine NEC 724.9

wrist 719.93
- Hypertrophy, hypertrophic
arthritis (chronic) (see also Osteoarthrosis) 715.9

spine (see also Spondylosis) 721.90
spondylitis (spine) (see also Spondylosis) 721.90
- Lipping
spine (see also Spondylosis) 721.90
vertebra (see also Spondylosis) 721.90
- Luschka's joint disease 721.90
- Osteoarthritica spondylitis (spine) (see also Spondylosis) 721.90
- Osteoarthritis (see also Osteoarthrosis) 715.9

interspinalis (see also Spondylosis) 721.90
spine, spinal NEC (see also Spondylosis) 721.90
- Osteoarthrosis (degenerative) (hypertrophic) (rheumatoid) 715.9

spine (see also Spondylosis) 721.90
- Spondylarthritis (see also Spondylosis) 721.90
- Spondylarthrosis (see also Spondylosis) 721.90
- Spondylitis 720.9

chronic (traumatic) (see also Spondylosis) 721.90
deformans (chronic) (see also Spondylosis) 721.90
hypertrophic (see also Spondylosis) 721.90
osteoarthritica (see also Spondylosis) 721.90
senescent (see also Spondylosis) 721.90
senile (see also Spondylosis) 721.90
static (see also Spondylosis) 721.90
traumatic (chronic) (see also Spondylosis) 721.90
- Spondyloarthrosis (see also Spondylosis) 721.90
- Spondylosis 721.90
with
inflammatory 720.9
traumatic 721.7
ICD-9-CM codes are used in medical billing and coding to describe diseases, injuries, symptoms and conditions. ICD-9-CM 721.90 is one of thousands of ICD-9-CM codes used in healthcare. Although ICD-9-CM and CPT codes are largely numeric, they differ in that CPT codes describe medical procedures and services. Can't find a code? Start at the root of ICD-9-CM, check the 2013 ICD-9-CM Index or use the search engine at the top of this page to lookup any code.
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