M43: Other deforming dorsopathies
M43.2: Fusion of spine

inclusionTerm
Ankylosis of spinal joint

excludes1
ankylosing spondylitis (M45.0-)
congenital fusion of spine (Q76.4)

excludes2
arthrodesis status (Z98.1)
pseudoarthrosis after fusion or arthrodesis (M96.0)
M43.20: Fusion of spine, site unspecified
M43.21: Fusion of spine, occipito-atlanto-axial region
M43.22: Fusion of spine, cervical region
M43.23: Fusion of spine, cervicothoracic region
M43.24: Fusion of spine, thoracic region
M43.25: Fusion of spine, thoracolumbar region
M43.26: Fusion of spine, lumbar region
M43.27: Fusion of spine, lumbosacral region
M43.28: Fusion of spine, sacral and sacrococcygeal region

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