M45.A
Non-billableNon-radiographic axial spondyloarthritis
Non-radiographic axial spondyloarthritis
This is a header/category code. For billing purposes, use a more specific child code from the list below.
Coding Notes
Excludes 1
Codes that cannot be used together with this code (mutual exclusion)
Excludes 2
Conditions not included here, but the patient may have both
- •arthropathic psoriasisL40.5
- •certain conditions originating in the perinatal periodP04-P96
- •certain infectious and parasitic diseasesA00-B99
- •compartment syndrome (traumatic)A-)T79
- •complications of pregnancy, childbirth and the puerperiumO9A)O00
- •congenital malformations, deformations, and chromosomal abnormalitiesQ00-Q99
- •endocrine, nutritional and metabolic diseasesE00-E88
- •injury, poisoning and certain other consequences of external causesS00-T88
- •neoplasmsC00-D49
- •symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classifiedR00-R94
- •Behçet's diseaseM35.2
Child Codes (10)
M45.A0Non-radiographic axial spondyloarthritis unsp site in spin
M45.A1Non-radiographic axial spondyloarthritis occipt-atlan-ax rgn
M45.A2Non-radiographic axial spondyloarthritis of cervical region
M45.A3Non-radiographic axial spondyloarthritis of cervicothor rgn
M45.A4Non-radiographic axial spondyloarthritis of thoracic region
M45.A5Non-radiographic axial spondyloarthritis of thrclm region
M45.A6Non-radiographic axial spondyloarthritis of lumbar region
M45.A7Non-radiographic axial spondyloarthritis of lumbosacr region
M45.A8Non-radiographic axial spondyloarthritis sacr/sacrocygl rgn
M45.ABNon-radiographic axial spondyloarthritis mult site in spine
Related Codes(10)
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
Also Known As / Clinical Terms(10)
UMLS
- Axial Spondyloarthritis, Non-RadiographicC3889038
- Axial spondyloarthritis without radiographic evidence of ankylosing spondylitisC3889038
- Non Radiographic Axial SpondyloarthritisC3889038
- Non-Radiographic Axial SpondyloarthritidesC3889038
- Non-Radiographic Axial SpondyloarthritisC3889038
- Non-radiographic axial spondyloarthritisC3889038
- Non-radiographic axial spondyloarthritis (disorder)C3889038
- Nr-axSpAC3889038
- Spondyloarthritis, Non-Radiographic AxialC3889038
- nr-axSpA - non-radiographic axial spondylitisC3889038
Frequently Asked Questions
What is the ICD-10 code for non-radiographic axial spondyloarthritis?
The ICD-10-CM code for non-radiographic axial spondyloarthritis is M45.A. The full clinical description is "Non-radiographic axial spondyloarthritis". M45.A is a non-billable header code. Use a more specific child code for billing purposes.
What does ICD-10 code M45.A mean?
ICD-10-CM code M45.A represents “Non-radiographic axial spondyloarthritis”. It is classified under Chapter 13: Diseases of the Musculoskeletal System and Connective Tissue and is a non-billable header code. Use a more specific child code for billing purposes.
Is M45.A a billable code?
No, M45.A is a non-billable header code. You need to use one of its more specific child codes for billing. There are 10 child codes under M45.A.
What chapter is M45.A in?
M45.A is in Chapter 13: Diseases of the Musculoskeletal System and Connective Tissue (codes M00-M99).
What codes cannot be used with M45.A?
M45.A has Excludes1 notes indicating codes that cannot be used together with it, including: arthropathy in Reiter's disease (M02.3-); juvenile (ankylosing) spondylitis (M08.1).
What are the subcategories under M45.A?
M45.A has 10 child codes, including: M45.A0 (Non-radiographic axial spondyloarthritis unsp site in spin), M45.A1 (Non-radiographic axial spondyloarthritis occipt-atlan-ax rgn), M45.A2 (Non-radiographic axial spondyloarthritis of cervical region), M45.A3 (Non-radiographic axial spondyloarthritis of cervicothor rgn), and 6 more.
What are the UMLS CUIs for M45.A?
M45.A is linked to 1 UMLS Concept Unique Identifier: C3889038. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.
How does M45.A relate to ICF functioning codes?
ICF (International Classification of Functioning, Disability and Health) codes describe how conditions like non-radiographic axial spondyloarthritis affect a person's functioning — body functions, activities, participation, and environmental factors. AutoICD provides ICF Core Sets for 12+ conditions and can map clinical text to ICF categories automatically. Browse the ICF directory to explore functioning codes.
What is the ICD-11 equivalent of M45.A?
There is no direct ICD-11 mapping available for M45.A in the WHO crosswalk tables. This may mean the concept is classified differently in ICD-11. Use the ICD-10 to ICD-11 converter to search for related codes.
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Includes SNOMED Clinical Terms® (SNOMED CT®) used by permission of SNOMED International. Includes content from the UMLS Metathesaurus, courtesy of the U.S. National Library of Medicine.