About the Code Lookup

This site is dedicated exclusively to helping you look up ICD-10 codes, quickly access the codes you use most, and become more comfortable with the new code set in general. No ads, no spam, and it's free for everybody.

Our hope is that we can ease your search for ICD-10 codes just a little, and maybe even make it fun.

Also, for good measure you should read this (legal disclaimer).

And here's our privacy policy.

Have feedback?

We'd love to hear it!

{{a.name}} - {{a.desc}} Tab/click for more specific Billable
Sorry, we weren't able to find any results that match your search. Try changing a word or two, or being a little more specific. Thanks!
ICD-10 M45 - Ankylosing spondylitis
Chapter 13 Section M45-M49

M45

ICD-10 Not billable

Ankylosing spondylitis

Inclusion term: Rheumatoid arthritis of spine
Specifically for this code:
  • arthropathy in Reiter's disease (M02.3-)
  • juvenile (ankylosing) spondylitis (M08.1)
Specifically for this code:
  • Behçet's disease (M35.2)
From Chapter 13:
  • 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)
From Chapter 13:
  • Use an external cause code following the code for the musculoskeletal condition, if applicable, to identify the cause of the musculoskeletal condition
M45 is a "category code," which means it's non-billable. Billable codes require more specificity. Use the list below to navigate to codes that are more specific:
10
M45.0
Ankylosing spondylitis of multiple sites in spine
Billable
10
M45.1
Ankylosing spondylitis of occipito-atlanto-axial region
Billable
10
M45.2
Ankylosing spondylitis of cervical region
Billable
10
M45.3
Ankylosing spondylitis of cervicothoracic region
Billable
10
M45.4
Ankylosing spondylitis of thoracic region
Billable
10
M45.5
Ankylosing spondylitis of thoracolumbar region
Billable
10
M45.6
Ankylosing spondylitis lumbar region
Billable
10
M45.7
Ankylosing spondylitis of lumbosacral region
Billable
10
M45.8
Ankylosing spondylitis sacral and sacrococcygeal region
Billable
10
M45.9
Ankylosing spondylitis of unspecified sites in spine
Billable
      
Showing results for: {{searchResults.terms}}
More results: