Glaucoma secondary to eye inflammation, unsp eye, mild stage

This code describes a form of glaucoma that develops as a consequence of inflammation within the eye, where the specific eye affected is not documented. The condition is currently in its mild stage, indicating early or less severe damage to the optic nerve and visual field. This secondary glaucoma results from inflammatory processes that disrupt aqueous humor outflow.

Use this code when documentation clearly links glaucoma to a preceding or co-existing intraocular inflammatory condition, such as uveitis or iritis, and the laterality is unspecified. This code is appropriate when the physician explicitly states "mild stage" or when visual field and optic nerve assessment findings correspond to mild glaucomatous damage. Ensure the medical record specifies the inflammatory etiology.

• Always code the underlying inflammatory condition first, if known and active, as it is the primary cause.
• Do not use this code if the glaucoma is due to trauma, drugs, or other non-inflammatory causes; select a more specific secondary glaucoma code.
• Confirm the "mild stage" documentation; if not specified, or if moderate/severe, a different stage code (H40.40X2 or H40.40X3) would be appropriate.