2020 ICD-10-CM Diagnosis Code M45.0

Ankylosing spondylitis of multiple sites in spine

    2016 2017 2018 2019 2020 Billable/Specific Code
  • M45.0 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
  • The 2020 edition of ICD-10-CM M45.0 became effective on October 1, 2019.
  • This is the American ICD-10-CM version of M45.0 - other international versions of ICD-10 M45.0 may differ.
The following code(s) above M45.0 contain annotation back-references
Annotation Back-References
In this context, annotation back-references refer to codes that contain:
  • Applicable To annotations, or
  • Code Also annotations, or
  • Code First annotations, or
  • Excludes1 annotations, or
  • Excludes2 annotations, or
  • Includes annotations, or
  • Note annotations, or
  • Use Additional annotations
that may be applicable to M45.0:
  • M00-M99
    2020 ICD-10-CM Range M00-M99

    Diseases of the musculoskeletal system and connective tissue

    Note
    • Use an external cause code following the code for the musculoskeletal condition, if applicable, to identify the cause of the musculoskeletal condition
    Type 2 Excludes
    • 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)
    Diseases of the musculoskeletal system and connective tissue
  • M45
    ICD-10-CM Diagnosis Code M45

    Ankylosing spondylitis

      2016 2017 2018 2019 2020 Non-Billable/Non-Specific Code
    Applicable To
    • Rheumatoid arthritis of spine
    Type 1 Excludes
    • arthropathy in Reiter's disease (M02.3-)
    • juvenile (ankylosing) spondylitis (M08.1)
    Type 2 Excludes
    • Behçet's disease (M35.2)
    Ankylosing spondylitis
Approximate Synonyms
  • Ankylosing spondylitis of multiple sites of spine
  • Ankylosing spondylitis, multiple sites in spine
Clinical Information
  • A chronic inflammatory condition affecting the axial joints, such as the sacroiliac joint and other intervertebral or costovertebral joints. It occurs predominantly in young males and is characterized by pain and stiffness of joints (ankylosis) with inflammation at tendon insertions.
  • An autoimmune chronic inflammatory disorder characterized by inflammation in the vertebral joints of the spine and sacroiliac joints. It predominantly affects young males. Patients present with stiffness and pain in the spine.
  • Ankylosing spondylitis is a type of arthritis of the spine. It causes swelling between your vertebrae, which are the disks that make up your spine, and in the joints between your spine and pelvis. Ankylosing spondylitis is an immune disease. The disease is more common and more severe in men. It often runs in families. Early symptoms include back pain and stiffness. These problems often start in late adolescence or early adulthood. Over time, ankylosing spondylitis can fuse your vertebrae together, limiting movement. Symptoms can worsen or improve or stop altogether. The disease has no cure, but medicines can relieve the pain, swelling and other symptoms. Exercise can also help. nih: national institute of arthritis and musculoskeletal and skin disease
  • Chronic inflammation of the spine and the low back bone joint
ICD-10-CM M45.0 is grouped within Diagnostic Related Group(s) (MS-DRG v37.0):
  • 545 Connective tissue disorders with mcc
  • 546 Connective tissue disorders with cc
  • 547 Connective tissue disorders without cc/mcc

Convert M45.0 to ICD-9-CM

Code History
  • 2016 (effective 10/1/2015): New code (first year of non-draft ICD-10-CM)
  • 2017 (effective 10/1/2016): No change
  • 2018 (effective 10/1/2017): No change
  • 2019 (effective 10/1/2018): No change
  • 2020 (effective 10/1/2019): No change
Code annotations containing back-references to M45.0:
  • Type 1 Excludes: M43.2
    , M08.1
    ICD-10-CM Diagnosis Code M43.2

    Fusion of spine

      2016 2017 2018 2019 2020 Non-Billable/Non-Specific Code
    Applicable To
    • Ankylosis of spinal joint
    Type 1 Excludes
    • ankylosing spondylitis (M45.0-)
    • congenital fusion of spine (Q76.4)
    Type 2 Excludes
    • arthrodesis status (Z98.1)
    • pseudoarthrosis after fusion or arthrodesis (M96.0)
    ICD-10-CM Diagnosis Code M08.1

    Juvenile ankylosing spondylitis

      2016 2017 2018 2019 2020 Billable/Specific Code
    Type 1 Excludes
    • ankylosing spondylitis in adults (M45.0-)

Diagnosis Index entries containing back-references to M45.0:

ICD-10-CM Codes Adjacent To M45.0
M43.8X2 …… cervical region
M43.8X3 …… cervicothoracic region
M43.8X4 …… thoracic region
M43.8X5 …… thoracolumbar region
M43.8X6 …… lumbar region
M43.8X7 …… lumbosacral region
M43.8X8 …… sacral and sacrococcygeal region
M43.8X9 …… site unspecified
M43.9 Deforming dorsopathy, unspecified
M45 Ankylosing spondylitis
M45.0 Ankylosing spondylitis of multiple sites in spine
M45.1 Ankylosing spondylitis of occipito-atlanto-axial region
M45.2 Ankylosing spondylitis of cervical region
M45.3 Ankylosing spondylitis of cervicothoracic region
M45.4 Ankylosing spondylitis of thoracic region
M45.5 Ankylosing spondylitis of thoracolumbar region
M45.6 Ankylosing spondylitis lumbar region
M45.7 Ankylosing spondylitis of lumbosacral region
M45.8 Ankylosing spondylitis sacral and sacrococcygeal region
M45.9 Ankylosing spondylitis of unspecified sites in spine
M46 Other inflammatory spondylopathies

Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.