M45.A7
✓ Billable
Non-radiographic axial spondyloarthritis of lumbosacral region
ICD-10-CM · FY2026 · Diseases of the Musculoskeletal System and Connective Tissue
Code
M45.A7
System
ICD-10-CM
Billable
Yes — valid for submission
Effective
FY2026
Chapter
Diseases of the Musculoskeletal System and Connective Tissue
Source
CMS / CDC NCHS
⚠ Verify before billing. Confirm against the current CMS/NCHS ICD-10-CM files and your payer's rules before claims submission.
Frequently asked questions
What is ICD-10 code M45.A7?
ICD-10-CM code M45.A7 represents Non-radiographic axial spondyloarthritis of lumbosacral region. It is a billable diagnosis code in the Diseases of the Musculoskeletal System and Connective Tissue chapter, effective October 1, 2025 – September 30, 2026.
Is M45.A7 billable?
Yes. M45.A7 is a valid billable ICD-10-CM code for insurance claims and clinical documentation.
What chapter is M45.A7 in?
M45.A7 belongs to the Diseases of the Musculoskeletal System and Connective Tissue chapter (M00–M99) of ICD-10-CM.
Related codes in the M45 category
M45
Ankylosing spondylitis
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M45.0
Ankylosing spondylitis of multiple sites in spine
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M45.1
Ankylosing spondylitis of occipito-atlanto-axial region
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M45.2
Ankylosing spondylitis of cervical region
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M45.3
Ankylosing spondylitis of cervicothoracic region
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M45.4
Ankylosing spondylitis of thoracic region
Billable
M45.5
Ankylosing spondylitis of thoracolumbar region
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M45.6
Ankylosing spondylitis lumbar region
Billable
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