Specific code 2014 ICD-9-CM Diagnosis Code 721.90
Spondylosis of unspecified site, without mention of myelopathy
  • Billable Code
  • Short description: Spondylos NOS w/o myelop.
  • ICD-9-CM 721.90 will be replaced by an equivalent ICD-10-CM code (or codes) when the United States transitions from ICD-9-CM to ICD-10-CM on October 1, 2015.
  • ICD-9-CM 721.90 is a billable medical code that can be used to specify a diagnosis on a reimbursement claim.
Disease Synonyms
  • 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
Clinical Information
  • 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.
Applies To
  • Spinal:
    • arthritis (deformans) (degenerative) (hypertrophic)
    • osteoarthritis NOS
  • Spondylarthrosis NOS
Convert to ICD-10-CM: 721.90 converts approximately to:
  • 2014 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
    • deformans (see also Osteoarthrosis) 715.9
      • spine 721.90
    • degenerative (see also Osteoarthrosis) 715.9
    • hypertrophic (see also Osteoarthrosis) 715.9
      • spine 721.90
    • nodosa (see also Osteoarthrosis) 715.9
      • spine 721.90
    • nonpyogenic NEC 716.9
      • spine 721.90
    • senile or senescent (see also Osteoarthrosis) 715.9
      • spine 721.90
    • spine 721.90
      • with myelopathy 721.91
      • atrophic 720.9
      • degenerative 721.90
      • hypertrophic (with deformity) 721.90
      • infectious or infective NEC 720.9
      • Marie-Strümpell 720.0
      • nonpyogenic 721.90
      • 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
    • degenerative
      • chamber angle (anterior) (iris) 364.56
      • ciliary body 364.57
      • spine or vertebra (see also Spondylosis) 721.90
  • Degeneration, degenerative
    • articular cartilage NEC (see also Disorder, cartilage, articular) 718.0
    • changes, spine or vertebra (see also Spondylosis) 721.90
    • joint disease (see also Osteoarthrosis) 715.9
      • multiple sites 715.09
      • spine (see also Spondylosis) 721.90
  • Disease, diseased - see also Syndrome
  • 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
      • disproportion 653.3
        • affecting fetus or newborn 763.1
        • causing obstructed labor 660.1
          • affecting fetus or newborn 763.1
      • myelopathy NEC 721.91
    • cervical, cervicodorsal 721.0
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 2014 ICD-9-CM Index or use the search engine at the top of this page to lookup any code.