Spondylolisthesis, occipito-atlanto-axial region

ValidICD-10-CM diagnosis code.

Valid for claims with a date of service in the current code year.

Valid FY2016 onwards.

What has happened to this code

Every change the publisher made, from 2007 to now. Entries marked draft are from the pre-implementation releases: ICD-10 took effect on 1 October 2015, so nothing before FY2016 was ever valid on a claim.

FY2007 Added to the draft code set draft Spondylolisthesis, occipito-atlanto-axial region

Official coding rules

Published by CDC for FY2027. A rule attached to a category binds every code beneath it, so the rules inherited from this code's ancestors are shown with the code they come from.

Inherited from M43 Other deforming dorsopathies

Excludes1 - never coded here

congenital spondylolysis and spondylolisthesis (Q76.2)
hemivertebra (Q76.3-Q76.4)
Klippel-Feil syndrome (Q76.1)
lumbarization and sacralization (Q76.4)
platyspondylisis (Q76.4)
spina bifida occulta (Q76.0)
spinal curvature in osteoporosis (M80.-)
spinal curvature in Paget's disease of bone [osteitis deformans] (M88.-)

How CDC's index refers to this code

Wording from the official alphabetic index. Much of it appears nowhere in the code description, which is why a search for the everyday phrase so often finds nothing.

Slipped, slipping > vertebra NEC
Spondylolisthesis > occipito-atlanto-axial region

Codes in the same group

Code	Description	Status
M43.10	Spondylolisthesis, site unspecified	Valid
M43.12	Spondylolisthesis, cervical region	Valid
M43.13	Spondylolisthesis, cervicothoracic region	Valid
M43.14	Spondylolisthesis, thoracic region	Valid
M43.15	Spondylolisthesis, thoracolumbar region	Valid
M43.16	Spondylolisthesis, lumbar region	Valid
M43.17	Spondylolisthesis, lumbosacral region	Valid
M43.18	Spondylolisthesis, sacral and sacrococcygeal region	Valid
M43.19	Spondylolisthesis, multiple sites in spine	Valid