Myogenic ptosis of unspecified eyelid

This code describes a drooping of the upper eyelid caused by a primary muscular dysfunction, rather than nerve damage or mechanical issues. It indicates that the specific eyelid affected (right or left) is not documented.

Apply this code when documentation clearly states "myogenic ptosis" but does not specify laterality. This diagnosis is often made after ruling out neurogenic or aponeurotic causes of ptosis.

• Do not use if laterality (right or left eyelid) is documented; instead, use the more specific codes.
• Distinguish from acquired ptosis (H02.41-) or congenital ptosis (Q10.0).
• Ensure the documentation specifies a muscular origin to differentiate from other forms of ptosis.