H40.22
Chronic angle-closure glaucoma
Clinical Classification Guidelines
Inclusion Terms
- Chronic primary angle closure glaucoma
7th Character Definition
One of the following 7th characters is to be assigned to each code in subcategory H40.22 to designate the stage of glaucoma
Medical Intelligence & Overview
Chronic angle-closure glaucoma is a long-term eye condition characterized by increased pressure inside the eye (intraocular pressure) due to abnormal drainage of eye fluid. It falls under the category of glaucoma, a group of eye disorders that can lead to vision loss if left untreated. Unlike acute forms of the disease, chronic angle-closure glaucoma develops gradually and may present with subtle symptoms, making regular eye check-ups essential for early detection and management.
Causes & Symptoms
Clinical Causes: Anatomical factors such as a narrow or closing angle between the iris and cornea Age-related changes in eye structure Genetic predisposition affecting eye anatomy Previous eye injuries or surgeries altering ocular structure Certain eye conditions like hyperopia (farsightedness)
Key Symptoms: Gradual loss of peripheral (side) vision Blurred or hazy vision over time Halos or rainbow-like rings around lights Eye discomfort or mild redness Seeing a shadow or curtain over part of the visual field No noticeable symptoms in early stages
Diagnostic & Treatment
Diagnosis Path: Diagnosis involves comprehensive eye examinations including: - Measurement of intraocular pressure - Gonioscopy to inspect the angle between the iris and cornea - Visual field testing to assess peripheral vision - Optic nerve evaluation to detect damage - Imaging studies such as anterior segment OCT for detailed visualization Early diagnosis is crucial to prevent progressive optic nerve damage and vision loss.
Treatment Protocols: Treatment options aim to reduce intraocular pressure and prevent optic nerve deterioration. They include: - Medications such as eye drops to lower eye pressure - Laser procedures like laser iridotomy to create a new drainage pathway - Surgical interventions in advanced cases to improve fluid outflow Regular monitoring and adherence to treatment plans are vital for managing the condition effectively.
Clinical Advice & FAQs
Billing Guidance
Is H40.22 a billable ICD-10 code?
Yes, H40.22 is a specific, billable code that can be used to indicate a diagnosis for reimbursement purposes.
Documentation
How do I report H40.22?
Clinical documentation must specify the nature of Chronic angle-closure glaucoma and any associated comorbidities for accurate reporting.
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