All ICD10 Codes

M45.A

Non-Billable
ChapterM00–M99
Ranksubcategory
Official Description

Non-radiographic axial spondyloarthritis

Use a more specific code (10 billable)
M45.A0Non-radiographic axial spondyloarthritis of unspecified sites in spineM45.A1Non-radiographic axial spondyloarthritis of occipito-atlanto-axial regionM45.A2Non-radiographic axial spondyloarthritis of cervical regionM45.A3Non-radiographic axial spondyloarthritis of cervicothoracic regionM45.A4Non-radiographic axial spondyloarthritis of thoracic regionM45.A5Non-radiographic axial spondyloarthritis of thoracolumbar regionM45.A6Non-radiographic axial spondyloarthritis of lumbar regionM45.A7Non-radiographic axial spondyloarthritis of lumbosacral regionM45.A8Non-radiographic axial spondyloarthritis of sacral and sacrococcygeal regionM45.ABNon-radiographic axial spondyloarthritis of multiple sites in spine
Metadata & Insights
  • •Non-billable category (requires more specific sub-code).
  • •Chapter 13: Diseases of the Musculoskeletal System and Connective Tissue (M00-M99).
General instructions are available for the parent sections:
View CH13 NotesView M45 Notes

Clinical Hierarchy

BillableHas subcodes
CH13Diseases of the musculoskeletal system and connective tissue (M00-M99)
M45-M49Spondylopathies (M45-M49)
M45Ankylosing spondylitis
M45.ANon-radiographic axial spondyloarthritisNot billable
M45.A0Non-radiographic axial spondyloarthritis of unspecified sites in spineBillable
M45.A1Non-radiographic axial spondyloarthritis of occipito-atlanto-axial regionBillable
M45.A2Non-radiographic axial spondyloarthritis of cervical regionBillable
M45.A3Non-radiographic axial spondyloarthritis of cervicothoracic regionBillable
M45.A4Non-radiographic axial spondyloarthritis of thoracic regionBillable
M45.A5Non-radiographic axial spondyloarthritis of thoracolumbar regionBillable
M45.A6Non-radiographic axial spondyloarthritis of lumbar regionBillable
M45.A7Non-radiographic axial spondyloarthritis of lumbosacral regionBillable
M45.A8Non-radiographic axial spondyloarthritis of sacral and sacrococcygeal regionBillable
M45.ABNon-radiographic axial spondyloarthritis of multiple sites in spineBillable

Applicable Ancestor Context

The following parent sections contain instructions or notes that apply to M45.A:

categoryM45
Ankylosing spondylitis
View context instructions
chapterCH13
Diseases of the musculoskeletal system and connective tissue (M00-M99)
View context instructions

MS-DRG Classification

2026

No direct MS-DRG triggers identified.

Cross Reference

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