Keratoconus, unspecified, unspecified eye

This code signifies an unspecified form of keratoconus affecting an unspecified eye. Keratoconus is a progressive, non-inflammatory corneal ectasia characterized by corneal thinning and protrusion, leading to an irregular conical shape. This results in distorted vision, often with increasing astigmatism and myopia.

Use this code when the medical record indicates a diagnosis of keratoconus, but the specific type (e.g., stable, acute hydrops) is not documented, and the affected eye (right, left, or bilateral) is also not specified. This code is appropriate when the provider's documentation simply states "keratoconus" without further detail.

• Avoid using this code if the laterality (right, left, bilateral) or specific type of keratoconus is documented; instead, choose a more specific code from the H18.6- category.
• Query the provider for clarification on laterality and specific type of keratoconus if possible, to allow for more precise coding.
• This code represents an unspecified condition and should be used only when more specific information is unavailable.