| Full description | Other specified deforming dorsopathies, occipito-atlanto-axial region |
| Billable | Yes |
| Chapter | Chapter 13: Diseases of the musculoskeletal system and connective tissue (M00-M99) |
| Section | Deforming dorsopathies (M40-M43) |
| Parent code | M43.8X — Other specified deforming dorsopathies |