Glaucoma secondary to eye trauma, unsp eye, severe stage

This code signifies a severe form of glaucoma that has developed as a direct consequence of a previous injury to the eye. The specific eye affected is not documented, and the condition has progressed to a severe stage, indicating significant optic nerve damage and visual field loss.

Use this code when documentation clearly states a diagnosis of glaucoma secondary to eye trauma, with the severity explicitly noted as "severe stage." This code is appropriate when the medical record does not specify which eye (right or left) is affected. Supporting documentation would include ophthalmology notes detailing the traumatic event, subsequent glaucoma diagnosis, and assessment of severity.

• Ensure the documentation explicitly links the glaucoma to a prior traumatic event.
• Verify that the severity is documented as "severe stage"; avoid using this code for mild or moderate stages.
• If the affected eye is specified (right or left), use the more specific codes H40.31X3 or H40.32X3, respectively.