Stromal corneal pigmentations, left eye

This code describes the presence of abnormal discoloration or deposits within the corneal stroma of the left eye. These pigmentations are typically non-inflammatory and can result from various causes, including metabolic disorders, drug deposition, or iron lines.

Use this code when documentation specifies stromal pigmentation affecting the left eye. This diagnosis is often made during a slit lamp examination, and the physician's notes should clearly indicate the location and nature of the pigmentation.

• Ensure laterality is explicitly documented as "left eye" to support this specific code.
• Distinguish from pigmentations affecting other corneal layers (e.g., epithelium, endothelium).
• If the underlying cause of the pigmentation is known, code it as a secondary diagnosis.