Secondary pigmentary degeneration, bilateral

This code describes a degenerative condition affecting both eyes, characterized by the accumulation of pigment within the retinal layers, often leading to visual impairment. It is a secondary process, meaning it results from another underlying ocular or systemic disease rather than being a primary inherited retinal dystrophy.

Use this code when documentation specifies bilateral secondary pigmentary degeneration of the retina. This typically occurs in conditions like chronic inflammation, trauma, or as a sequela of other retinal diseases. The physician's notes should clearly indicate the secondary nature and bilateral involvement.

• Ensure the documentation explicitly states "secondary" and "bilateral" to support this specific code.
• Always code the underlying primary condition causing the secondary pigmentary degeneration first, if known and actively treated.
• Distinguish from primary pigmentary degenerations (e.g., retinitis pigmentosa), which are coded differently.