Enophthalmos due to atrophy of orbital tissue, left eye

This code describes the inward displacement of the left eyeball within the orbit, specifically when caused by the wasting away or reduction in size of the fatty and connective tissues surrounding the eye. This atrophy leads to a sunken appearance of the eye.

Use this code when documentation clearly indicates enophthalmos of the left eye resulting from a decrease in orbital tissue volume. This is typically observed in conditions like severe dehydration, chronic illness, or post-traumatic fat necrosis affecting the orbital contents.

• Ensure documentation specifies "left eye" and explicitly links the enophthalmos to orbital tissue atrophy.
• Distinguish from enophthalmos due to other causes, such as fracture or congenital anomalies, which have different codes.
• Code any underlying conditions causing the orbital tissue atrophy, such as systemic wasting diseases, as primary diagnoses if applicable.