ICD-10-CM › M00-M99 › M40-M43 › M43 Other deforming dorsopathies › M43.4
Other recurrent atlantoaxial dislocation
ValidICD-10-CM diagnosis code.
Valid for claims with a date of service in the current code year.
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 Other recurrent atlantoaxial dislocation
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.
- Change > joint
- Mushrooming hip
- Change > hip joint
- Dislocation > tarsal
- Dislocation > chronic
- Dislocation > partial
- Derangement > shoulder
- Dislocation > habitual
- Dislocation > midtarsal
- Dislocation > incomplete
- Dislocation > metatarsal
- Injury > foot > dislocation
- Dislocation > scaphoid > foot
- Dislocation > tarsometatarsal
- Dislocation > foot > recurrent
- Disorder > joint > derangement
- Complex > jumped process, spine
- Derangement > joint > recurrent
- Dislocation > thorax > vertebra
- Dislocation > vertebra > partial
- Derangement > cartilage NEC > recurrent
- Derangement > joint > dislocation > recurrent
- Displacement, displaced > intervertebral disc NEC > due to trauma
- Subluxation > atlantoaxial, recurrent
- Dislocation > recurrent > vertebra > atlantoaxial
Codes in the same group
| Code | Description | Status |
|---|---|---|
| M43.0 | Spondylolysis | Not billable |
| M43.1 | Spondylolisthesis | Not billable |
| M43.2 | Fusion of spine | Not billable |
| M43.3 | Recurrent atlantoaxial dislocation with myelopathy | Valid |
| M43.5 | Other recurrent vertebral dislocation | Not billable |
| M43.6 | Torticollis | Valid |
| M43.8 | Other specified deforming dorsopathies | Not billable |
| M43.9 | Deforming dorsopathy, unspecified | Valid |