Keratoconus, stable, left eye

This code signifies a diagnosis of keratoconus in the left eye that has been determined to be stable. Keratoconus is a progressive eye disease in which the normally round cornea thins and begins to bulge into a cone-like shape, causing distorted vision. "Stable" indicates that the condition is not actively progressing or worsening at the time of examination.

Use this code when documentation explicitly states stable keratoconus affecting the left eye. This typically applies to patients whose corneal topography or pachymetry measurements show no significant change over a defined period, often after treatment such as corneal collagen cross-linking, or in cases where the disease has naturally arrested. The physician's assessment of stability is crucial for accurate coding.

• Ensure the documentation specifies "stable" and clearly identifies the left eye.
• Do not use this code if the keratoconus is actively progressing; instead, select a code indicating unspecified or unstable keratoconus.
• Consider co-reporting with codes for associated visual disturbances (e.g., astigmatism, myopia) if documented.