Impaired contrast sensitivity

This code describes a visual impairment characterized by difficulty distinguishing between objects and their backgrounds, particularly when there is little difference in luminance or color. It indicates a reduced ability to perceive subtle variations in contrast, impacting daily activities like driving, reading, and recognizing faces.

Use this code when documentation explicitly states "impaired contrast sensitivity" or "reduced contrast vision" as a diagnosed condition. This often arises from conditions affecting the retina, optic nerve, or visual cortex, such as cataracts, glaucoma, or neurological disorders.

• Do not confuse with general "blurred vision" (H53.8) unless contrast sensitivity is specifically documented as the underlying issue.
• Sequence this code after the primary diagnosis causing the impaired contrast sensitivity, if applicable.
• Ensure the medical record clearly supports the diagnosis through ophthalmological examination findings or patient complaints.