Primary lacrimal gland atrophy, left lacrimal gland

This code signifies a degenerative reduction in the size and function of the left lacrimal gland, which is responsible for tear production. This atrophy is considered primary, meaning it's not secondary to another identifiable systemic disease or local injury. It results in decreased tear secretion, often leading to dry eye symptoms.

Use this code when documentation specifically indicates primary atrophy of the left lacrimal gland. This diagnosis is typically made after ruling out secondary causes of lacrimal gland dysfunction. Supporting documentation would include ophthalmological examination findings, imaging reports (e.g., MRI, CT) showing gland atrophy, and clinical notes detailing dry eye symptoms and tear film abnormalities.

• Ensure the documentation specifies "primary" atrophy; otherwise, investigate for a secondary cause.
• Verify laterality (left) is clearly documented to avoid miscoding.
• Distinguish from other lacrimal gland disorders like dacryoadenitis or lacrimal gland displacement.