Congenital malformation of orbit

This code describes a birth defect affecting the bony socket that houses the eyeball and its associated structures. These malformations can range from subtle structural abnormalities to severe deformities impacting orbital size, shape, and position. Such conditions are present at birth and may affect vision or facial symmetry.

Use this code for documented congenital anomalies of the orbital bone or soft tissues within the orbit. This includes conditions like anophthalmia (absence of the eye) or microphthalmia (abnormally small eye) when the orbital structure itself is malformed, or other congenital orbital cysts or masses. Documentation should clearly state the congenital nature and the specific orbital malformation.

• Do not use for acquired orbital conditions or trauma.
• Code additional congenital anomalies of the eye (e.g., Q12.-) or eyelids (e.g., Q10.0-Q10.3) separately.
• Ensure documentation specifies "congenital" to differentiate from acquired orbital defects.