Congenital kyphosis, occipito-atlanto-axial region

This code describes a birth defect characterized by an abnormal, exaggerated outward curvature of the spine specifically affecting the occiput, atlas (C1), and axis (C2) vertebrae. This congenital malformation results in a rounded or hunched back appearance in the upper cervical region, present from birth.

Use this code when documentation clearly indicates a diagnosis of kyphosis that is congenital in origin and precisely located in the occipito-atlanto-axial region. This diagnosis is typically supported by imaging studies such as X-rays, CT scans, or MRI, along with a physician's clinical assessment confirming the congenital nature and specific spinal segment involvement.

• Ensure documentation specifies "congenital" kyphosis; acquired kyphosis would be coded differently.
• Verify the exact spinal region (occipito-atlanto-axial) to differentiate from kyphosis in other cervical or thoracic segments.
• Code any associated neurological deficits or other congenital anomalies separately.