M43.2
ICD-10Non-billable categoryFusion of spine
Official ICD-10-CM descriptor (FY2026)
Fusion of spine
M43.2 is a category heading, not a billable code. CMS does not accept it on a claim; report one of the more specific codes beneath it.
Inclusion terms
- Ankylosis of spinal joint
Excludes1
Not coded here. An Excludes1 code should never be reported at the same time as the code above it.
- ankylosing spondylitis (M45.0-)
- congenital fusion of spine (Q76.4)
Excludes2
Not included here. The condition is not part of this code, but a patient may have both, and both codes may be reported together.
- arthrodesis status (Z98.1)
- pseudoarthrosis after fusion or arthrodesis (M96.0)
ICD-10-CM FY2026 defines 9 codes beneath M43.2. See the ICD-10-CM index for what this site publishes.
Related codes in M43
- M43.0Spondylolysiscategory
- M43.1Spondylolisthesiscategory
- M43.3Recurrent atlantoaxial dislocation with myelopathy
- M43.4Other recurrent atlantoaxial dislocation
- M43.5Other recurrent vertebral dislocationcategory
- M43.6Torticollis
- M43.8Other specified deforming dorsopathiescategory
- M43.9Deforming dorsopathy, unspecified
Where this code sits
- Parent code
- M43
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ICD-10-CM FY2026. Centers for Medicare & Medicaid Services (CMS) / National Center for Health Statistics (NCHS), “2026 ICD-10-CM Code Descriptions in Tabular Order” (icd10cm_order_2026.txt). Download the original file from cms.gov. Public domain (US Government work). Descriptors, billable flags and instructional notes on this page are reproduced from that file without modification. Krasyn adds no clinical guidance.