ICD-10-CM › M00-M99 › M45-M49 › M45 Ankylosing spondylitis › M45.A

M45.A

Non-radiographic axial spondyloarthritis

Not billableICD-10-CM diagnosis code.

This code exists but cannot be submitted on its own. It groups the more specific codes beneath it.

A category header for its whole life, FY2022 onwards. It has never been valid for submission on its own.

Submit one of these 10 more specific codes instead:

  • M45.A0 Non-radiographic axial spondyloarthritis of unspecified sites in spine
  • M45.A1 Non-radiographic axial spondyloarthritis of occipito-atlanto-axial region
  • M45.A2 Non-radiographic axial spondyloarthritis of cervical region
  • M45.A3 Non-radiographic axial spondyloarthritis of cervicothoracic region
  • M45.A4 Non-radiographic axial spondyloarthritis of thoracic region
  • M45.A5 Non-radiographic axial spondyloarthritis of thoracolumbar region
  • M45.A6 Non-radiographic axial spondyloarthritis of lumbar region
  • M45.A7 Non-radiographic axial spondyloarthritis of lumbosacral region
  • M45.A8 Non-radiographic axial spondyloarthritis of sacral and sacrococcygeal region
  • M45.AB Non-radiographic axial spondyloarthritis of multiple sites in spine

What has happened to this code

Every change the publisher made, from 2022 to now.

  1. FY2022 Added to the code set Non-radiographic axial spondyloarthritis

Official coding rules

Published by CDC for FY2027. A rule attached to a category binds every code beneath it, so the rules inherited from this code's ancestors are shown with the code they come from.

Inherited from M45 Ankylosing spondylitis

Excludes1 - never coded here

  • arthropathy in Reiter's disease (M02.3-)
  • juvenile (ankylosing) spondylitis (M08.1)

Excludes2 - not included here

  • Behçet's disease (M35.2)

Also known as

  • Rheumatoid arthritis of spine

Codes in the same group

CodeDescriptionStatus
M45.0 Ankylosing spondylitis of multiple sites in spine Valid
M45.1 Ankylosing spondylitis of occipito-atlanto-axial region Valid
M45.2 Ankylosing spondylitis of cervical region Valid
M45.3 Ankylosing spondylitis of cervicothoracic region Valid
M45.4 Ankylosing spondylitis of thoracic region Valid
M45.5 Ankylosing spondylitis of thoracolumbar region Valid
M45.6 Ankylosing spondylitis lumbar region Valid
M45.7 Ankylosing spondylitis of lumbosacral region Valid
M45.8 Ankylosing spondylitis sacral and sacrococcygeal region Valid
M45.9 Ankylosing spondylitis of unspecified sites in spine Valid