Injury of visual cortex, left side, sequela

This code signifies a long-term or late effect resulting from a past injury to the visual cortex located in the left hemisphere of the brain. Such an injury typically impairs the processing of visual information, leading to persistent visual field defects, agnosia, or other cortical visual impairments. The "sequela" designation indicates that the acute phase of the injury has passed, and the code describes the residual condition.

Use this code when documenting a chronic or residual visual deficit directly attributable to a previous injury of the left visual cortex. Documentation should clearly state the history of the injury and the current, ongoing visual impairment as a direct consequence. This code is appropriate for follow-up visits addressing these long-term effects.

• Always sequence the sequela code first, followed by any associated manifestations of the visual impairment.
• Ensure documentation explicitly links the current visual deficit to a past injury of the left visual cortex.
• Do not use this code for acute injuries; instead, refer to the acute injury codes within the S04 category.