Blindness, one eye, unspecified eye

This code signifies complete vision loss in a single eye, where the specific eye affected (left or right) is not documented. It represents a state of total inability to perceive light or form in one ocular globe, without further specification of laterality.

Apply this code when documentation clearly states "blindness in one eye" but fails to specify whether it is the right or left eye. It is appropriate for cases where the laterality is genuinely unknown or not recorded in the patient's medical record.

• Avoid using this code if laterality (right or left eye) is documented; instead, use the more specific codes for blindness in the right (H54.41) or left (H54.42) eye.
• Query the provider for clarification on laterality if possible, to allow for more specific coding.
• This code should be used as a last resort when laterality cannot be determined from the available clinical information.