Pigmentary glaucoma, unspecified eye, indeterminate stage

This code signifies a diagnosis of pigmentary glaucoma, a type of open-angle glaucoma characterized by the dispersion of pigment from the iris, which then obstructs the trabecular meshwork. This specific code indicates that the affected eye is not specified, and the stage of the glaucoma is indeterminate.

Use this code when documentation confirms pigmentary glaucoma but does not specify whether it affects the right or left eye, or both. It is also appropriate when the physician has not yet determined or documented the specific stage of the glaucoma (e.g., mild, moderate, severe).

• Avoid using this code if the affected eye (right, left, or bilateral) is clearly documented; instead, select a more specific code from the H40.13- series.
• Only use this code when the stage of glaucoma is truly indeterminate; if the stage is known but not explicitly stated, query the provider for clarification.
• Always sequence this code as a primary diagnosis when it is the reason for the encounter, or as a secondary diagnosis when it is a co-morbidity.