Brow ptosis, left

This code describes the drooping or sagging of the eyebrow on the left side, often due to weakened muscles, nerve damage, or age-related tissue laxity. It can impair vision by obstructing the superior visual field or cause cosmetic concerns.

Use this code when documentation specifically indicates brow ptosis affecting the left eye. This diagnosis is typically supported by physical examination findings noting the lower-than-normal position of the left eyebrow relative to the orbital rim, and may be accompanied by visual field deficits.

• Ensure the laterality (left) is clearly documented. Do not use this code for bilateral or unspecified brow ptosis.
• Differentiate from eyelid ptosis (blepharoptosis), which involves the upper eyelid itself, not the brow.
• Consider co-reporting with codes for visual field defects (e.g., H53.4x) if documented as a consequence of the brow ptosis.