Monocular exotropia with A pattern, left eye

This code signifies a left eye outward deviation (exotropia) that is present in only one eye (monocular) and exhibits an "A" pattern. An A pattern strabismus means the exotropia is greater in upgaze than in downgaze.

Apply this code when documentation specifies monocular exotropia of the left eye with an A pattern. This typically occurs in patients presenting with binocular vision issues, double vision, or cosmetic concerns related to eye misalignment. Supporting documentation includes ophthalmologist or optometrist notes detailing the type, laterality, and pattern of strabismus.

• Ensure the documentation clearly specifies "monocular" and the "left eye" to differentiate from bilateral or right eye involvement.
• Verify the presence of an "A pattern" as opposed to a "V pattern" or no specified pattern, which would lead to different codes.
• Do not confuse with intermittent exotropia (H50.13-) or other forms of strabismus.