Other single-suture craniosynostosis

This code represents the premature fusion of a single cranial suture, excluding sagittal, coronal, metopic, and lambdoid sutures, leading to an abnormally shaped skull. This condition is a congenital anomaly affecting skull development. The specific suture involved is not one of the four most commonly affected single sutures.

Use this code when documentation specifies craniosynostosis involving only one cranial suture, and the specific suture is identified as something other than sagittal, coronal, metopic, or lambdoid. This code is appropriate for conditions like premature fusion of the squamosal or occipitomastoid sutures. Supporting documentation should clearly state the affected single suture.

• Do not use this code if multiple sutures are involved; refer to Q75.09 for multiple-suture craniosynostosis.
• Ensure the documentation explicitly rules out sagittal, coronal, metopic, and lambdoid craniosynostosis before assigning this code.
• Always review operative reports or imaging studies for precise identification of the fused suture(s).