H21.82
Plateau iris syndrome (post-iridectomy) (postprocedural)
Clinical Classification Guidelines
Medical Intelligence & Overview
Plateau iris syndrome is a condition affecting the eye's drainage system, which can lead to increased intraocular pressure and glaucoma. Post-iridectomy or postprocedural plateau iris syndrome refers to the development of this condition following surgical procedures like iridectomy or other eye interventions. It is characterized by a specific anatomical configuration of the iris and anterior chamber angle, which can obstruct fluid flow and cause vision-threatening issues if not managed properly.
Causes & Symptoms
Clinical Causes: Anatomical variations in the iris configuration, specifically a flat or plateau-shaped iris Pre-existing narrow anterior chamber angles that predispose to angle closure Post-surgical changes resulting from iridectomy or other ocular procedures that alter iris position Genetic predisposition influencing iris morphology Lens or other structural shifts causing anterior segment crowding
Key Symptoms: Gradual loss of peripheral vision Episodes of eye pain or headache, especially in the morning Redness and discomfort in the affected eye Blurred or decreased vision Seeing halos around lights Persistent or intermittent intraocular pressure elevations
Diagnostic & Treatment
Diagnosis Path: Diagnosis involves comprehensive eye examinations, including slit-lamp biomicroscopy, gonioscopy to assess the anterior chamber angle, and imaging studies like ultrasound biomicroscopy (UBM) or anterior segment optical coherence tomography (AS-OCT). These tools help identify the specific anatomical features associated with plateau iris configuration. Additional assessments include intraocular pressure measurement and visual field testing to evaluate the extent of vision impairment.
Treatment Protocols: Management aims to prevent angle closure and preserve vision. Common approaches include: - **Laser Iridotomy:** Creating a small hole in the iris to facilitate aqueous humor flow and reduce pupillary block. - **Medical Therapy:** Use of eye drops to lower intraocular pressure, including prostaglandin analogs, beta-blockers, or alpha agonists. - **Argon Laser Peripheral Iridoplasty:** Applying laser burns to the peripheral iris to contract and pull it away from the trabecular meshwork, widening the angle. - **Surgical Interventions:** In refractory cases, procedures like lens extraction or filtration surgeries may be considered. - **Regular Monitoring:** Continuous assessment of intraocular pressure and optic nerve health to prevent progression of glaucoma.
Clinical Advice & FAQs
Billing Guidance
Is H21.82 a billable ICD-10 code?
Yes, H21.82 is a specific, billable code that can be used to indicate a diagnosis for reimbursement purposes.
Documentation
How do I report H21.82?
Clinical documentation must specify the nature of Plateau iris syndrome (post-iridectomy) (postprocedural) and any associated comorbidities for accurate reporting.
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