Vitreous membranes and strands, bilateral

This code describes the presence of abnormal fibrous tissue or strands within the vitreous humor of both eyes. These membranes or strands can be congenital or acquired, often resulting from inflammation, trauma, or hemorrhage within the eye. They may cause visual disturbances or traction on the retina.

Use this code when documentation clearly indicates the presence of vitreous membranes or strands affecting both the right and left eyes. This diagnosis is typically made during an ophthalmological examination, often utilizing slit-lamp biomicroscopy or ophthalmoscopy. Documentation should specify the bilateral involvement.

• Ensure the medical record explicitly states "bilateral" involvement of vitreous membranes or strands.
• Do not use this code if only one eye is affected; instead, use the appropriate laterality code (H43.311 for right, H43.312 for left).
• Consider sequencing this code after any underlying conditions that may have caused the vitreous membranes, such as diabetic retinopathy or posterior vitreous detachment, if applicable.