Chronic angle-closure glaucoma, bi, indeterminate stage

This code signifies a chronic form of glaucoma characterized by a narrow or closed anterior chamber angle, affecting both eyes, where the specific stage of the disease progression cannot be determined. This condition leads to increased intraocular pressure, potentially causing optic nerve damage and vision loss.

Use this code when documentation explicitly states chronic angle-closure glaucoma is present bilaterally, and the physician is unable to determine or document a specific stage (e.g., mild, moderate, severe). This typically occurs when there is insufficient information from diagnostic tests or clinical examination to assign a more specific stage.

• Ensure documentation clearly specifies "chronic" and "bilateral" involvement, along with an "indeterminate stage."
• Do not use this code if a specific stage (e.g., mild, moderate, severe) is documented for either eye; instead, use the appropriate stage-specific code.
• Distinguish from acute angle-closure glaucoma, which has different code assignments.