H18.62
Keratoconus, unstable
Clinical Classification Guidelines
Inclusion Terms
- Acute hydrops
Medical Intelligence & Overview
Keratoconus, unstable, is a progressive eye condition where the normally round cornea thins and begins to bulge outward in a cone shape. This change in the cornea's shape can cause significant visual distortion and discomfort. The term 'unstable' refers to the condition's tendency to fluctuate, sometimes worsening suddenly, especially during episodes of acute hydrops, which are sudden inflammations caused by corneal swelling. Recognizing and managing this condition early is crucial to maintaining vision and eye health.
Causes & Symptoms
Clinical Causes: Genetic factors: Family history of keratoconus or similar corneal conditions. Environmental influences: Chronic eye rubbing, allergies, and exposure to ultraviolet light. Biomechanical factors: Congenital weaknesses in the corneal stroma leading to thinning and protrusion. Other medical conditions: Rarely associated with connective tissue diseases such as Marfan syndrome or Ehlers-Danlos syndrome.
Key Symptoms: Blurred or distorted vision: Difficulties seeing clearly, especially at night. Hazy or ghosting images: Multiple images or halos around lights. Increased sensitivity to light and glare. Sudden worsening of vision during episodes of acute hydrops. Feeling of eye irritation or discomfort in some cases. Progressive visual decline that may stabilize or worsen over time.
Diagnostic & Treatment
Diagnosis Path: Diagnosing keratoconus involves a comprehensive eye examination. An optometrist or ophthalmologist will perform several tests:
Treatment Protocols: Managing keratoconus, unstable, aims to improve vision, strengthen the cornea, and control symptoms. Treatment options include:
Clinical Advice & FAQs
Billing Guidance
Is H18.62 a billable ICD-10 code?
Yes, H18.62 is a specific, billable code that can be used to indicate a diagnosis for reimbursement purposes.
Documentation
How do I report H18.62?
Clinical documentation must specify the nature of Keratoconus, unstable and any associated comorbidities for accurate reporting.
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