Hypotony of eye due to other ocular disorders, left eye

This code signifies abnormally low intraocular pressure (IOP) in the left eye, resulting from an underlying ocular condition other than a surgical or traumatic cause. This hypotony can lead to visual impairment and other complications if left untreated.

Apply this code when documentation specifies hypotony of the left eye and attributes it to a non-surgical, non-traumatic ocular disorder. Examples include hypotony secondary to uveitis, retinal detachment, or chronic glaucoma with ciliary body dysfunction. The medical record should clearly state the laterality and the underlying ocular cause.

• Ensure the documentation specifies "left eye" and an underlying other ocular disorder, not surgical or traumatic.
• Always code the underlying ocular disorder first, as hypotony is a manifestation of that condition.
• Distinguish from hypotony due to surgical (H44.41-) or traumatic (H44.42-) causes.