Primary lacrimal gland atrophy, unspecified lacrimal gland

This code describes the idiopathic or primary shrinking or wasting away of the lacrimal gland, which is responsible for tear production. This atrophy leads to decreased tear secretion, often resulting in dry eye symptoms. The specific lacrimal gland affected (right, left, or bilateral) is not specified.

Use this code when documentation indicates primary lacrimal gland atrophy without a specified cause, and the laterality of the affected gland is not recorded. This diagnosis is typically supported by ophthalmological examination findings, such as Schirmer's test results indicating reduced tear production, and imaging studies showing glandular atrophy.

• Ensure documentation clearly states "primary" or "idiopathic" atrophy to differentiate from secondary causes.
• If laterality (right, left, or bilateral) is specified, use a more specific code from the H04.14 series.
• Do not confuse with codes for lacrimal gland inflammation (dacryoadenitis) or other lacrimal gland disorders.