H40.821
ICD-10-CMThis code signifies a specific type of secondary glaucoma affecting the right eye, characterized by an overproduction of aqueous humor. This excess fluid leads to increased intraocular pressure, which can damage the optic nerve and result in vision loss. It is distinct from other forms of glaucoma where the outflow of aqueous humor is impaired.
Use this code when documentation explicitly states "hypersecretion glaucoma" affecting the right eye. This diagnosis is typically made after tonometry reveals elevated intraocular pressure and gonioscopy shows an open angle with no obstruction to outflow, suggesting an overproduction mechanism. Supporting documentation should include ophthalmological examination findings.
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