Degeneration of chamber angle, unspecified eye

This code describes a non-specific deterioration of the chamber angle structures within the eye. This degeneration can affect the trabecular meshwork and other tissues crucial for aqueous humor outflow, potentially leading to increased intraocular pressure. The "unspecified eye" designation indicates that the laterality of the condition is not documented.

This code is appropriate when documentation indicates degeneration of the chamber angle but does not specify whether it affects the right or left eye. It is used when the physician's diagnosis explicitly states "degeneration of chamber angle, unspecified eye" or similar wording without laterality.

• Avoid using this code if laterality (right or left eye) is documented; instead, select the more specific H21.211 or H21.212.
• Ensure the medical record clearly supports the diagnosis of chamber angle degeneration, even if the specific type or cause is not identified.
• This code should not be used for congenital anomalies of the chamber angle or for secondary glaucoma due to chamber angle anomalies, which have more specific codes.