Vernal keratoconjunct, w limbar and corneal involv, unsp eye

This code signifies a chronic, bilateral allergic inflammatory condition of the conjunctiva and cornea, specifically characterized by involvement of both the limbus (the border between the cornea and sclera) and the cornea itself. It is a severe form of allergic conjunctivitis, often seasonal and recurrent, primarily affecting children and young adults.

Apply this code when documentation explicitly states a diagnosis of vernal keratoconjunctivitis with clear evidence of both limbal and corneal involvement. This diagnosis is typically made by an ophthalmologist based on characteristic clinical signs such as Trantas dots (at the limbus) and shield ulcers (on the cornea).

• Ensure the documentation specifies both limbal and corneal involvement; otherwise, a less specific code may be more appropriate.
• This code is for an unspecified eye; if laterality is documented (e.g., right, left, bilateral), use the more specific code.
• Do not confuse with other forms of allergic conjunctivitis (e.g., H10.1-), which lack the severe corneal and limbal involvement characteristic of vernal keratoconjunctivitis.