Is M45.A a billable code?
No. M45.A is a header code that groups 10 more specific codes. Use one of the billable codes listed on this page instead.
ICD-10-CM FY2027 diagnosis code
M45.A: Non-radiographic axial spondyloarthritis
Header code: not billableValid for dates of service October 1, 2026 to September 30, 2027
M45.A groups related diagnoses under non-radiographic axial spondyloarthritis. It cannot be used on a claim by itself. Choose the billable code below that matches the patient's record.
Billable codes under M45.A
- M45.A0Non-radiographic axial spondyloarthritis of unspecified sites in spine
- M45.A1Non-radiographic axial spondyloarthritis of occipito-atlanto-axial region
- M45.A2Non-radiographic axial spondyloarthritis of cervical region
- M45.A3Non-radiographic axial spondyloarthritis of cervicothoracic region
- M45.A4Non-radiographic axial spondyloarthritis of thoracic region
- M45.A5Non-radiographic axial spondyloarthritis of thoracolumbar region
- M45.A6Non-radiographic axial spondyloarthritis of lumbar region
- M45.A7Non-radiographic axial spondyloarthritis of lumbosacral region
- M45.A8Non-radiographic axial spondyloarthritis of sacral and sacrococcygeal region
- M45.ABNon-radiographic axial spondyloarthritis of multiple sites in spine
Other codes in M45 Ankylosing spondylitis
- M45.0Ankylosing spondylitis of multiple sites in spine
- M45.1Ankylosing spondylitis of occipito-atlanto-axial region
- M45.2Ankylosing spondylitis of cervical region
- M45.3Ankylosing spondylitis of cervicothoracic region
- M45.4Ankylosing spondylitis of thoracic region
- M45.5Ankylosing spondylitis of thoracolumbar region
- M45.6Ankylosing spondylitis lumbar region
- M45.7Ankylosing spondylitis of lumbosacral region
- M45.8Ankylosing spondylitis sacral and sacrococcygeal region
- M45.9Ankylosing spondylitis of unspecified sites in spine
M45.A questions
What does M45.A mean?
M45.A is the ICD-10-CM code for Non-radiographic axial spondyloarthritis. It is in chapter 13, Diseases of the musculoskeletal system and connective tissue (M00-M99).
Code titles come from the official ICD-10-CM files published by the CDC National Center for Health Statistics. Always check payer rules and the clinical record before billing.