H40.123
Low-tension glaucoma, bilateral
Clinical Classification Guidelines
Medical Intelligence & Overview
Low-tension glaucoma, also known as normal-tension glaucoma, is a condition where damage occurs to the optic nerve even though the eye's intraocular pressure (IOP) remains within normal limits. When this form affects both eyes, it is referred to as bilateral low-tension glaucoma. This condition can lead to progressive vision loss if not diagnosed and managed properly. Unlike traditional glaucoma, where high eye pressure is a primary risk factor, low-tension glaucoma develops despite normal pressure levels, making early detection crucial.
Causes & Symptoms
Clinical Causes: Genetic factors contributing to optic nerve susceptibility Impaired blood flow to the optic nerve leading to ischemic damage Vascular conditions such as low blood pressure or blood vessel disorders Structural differences in the optic nerve head Potential autoimmune responses affecting ocular tissues
Key Symptoms: Gradual loss of peripheral (side) vision Difficulty adjusting to low light conditions Blind spots in the visual field that expand over time No noticeable symptoms in early stages In advanced cases, central vision may be affected
Diagnostic & Treatment
Diagnosis Path: Diagnosis involves comprehensive eye examinations including visual field testing to identify peripheral vision loss, detailed assessment of the optic nerve via ophthalmoscopy, and measurement of intraocular pressure to confirm normal range. Additional tests such as optical coherence tomography (OCT) may be used to evaluate the retinal nerve fiber layer and detect early nerve damage. Regular monitoring is essential for tracking disease progression and adjusting treatment plans.
Treatment Protocols: While a definitive cure remains unavailable, treatment strategies aim to slow or halt disease progression. These include:
Clinical Advice & FAQs
Billing Guidance
Is H40.123 a billable ICD-10 code?
Yes, H40.123 is a specific, billable code that can be used to indicate a diagnosis for reimbursement purposes.
Documentation
How do I report H40.123?
Clinical documentation must specify the nature of Low-tension glaucoma, bilateral and any associated comorbidities for accurate reporting.
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