H46.12
Retrobulbar neuritis, left eye
Clinical Classification Guidelines
Medical Intelligence & Overview
Retrobulbar neuritis, also known as retrobulbar optic neuritis, is an inflammation of the optic nerve located behind the eyeball. When this condition affects the left eye, it can cause a sudden loss or reduction of vision, along with other visual disturbances. This condition requires prompt medical attention to prevent permanent vision loss and to determine its underlying cause.
Causes & Symptoms
Clinical Causes: Multiple sclerosis (most common cause) Infections such as viral or bacterial infections Autoimmune disorders Vitamin B12 deficiency Certain medications or toxins Tumors compressing the optic nerve Idiopathic (unknown causes)
Key Symptoms: Sudden vision loss or blurring in the affected eye Pain around the eye, especially with eye movement Color vision deficits Photophobia (sensitivity to light) Decreased visual acuity Affect on contrast sensitivity May experience visual field defects
Diagnostic & Treatment
Diagnosis Path: Visual acuity tests to assess the level of vision impairment Pupil testing, including afferent pupillary defect (Marcus Gunn pupil) Visual field testing to detect areas of vision loss Optical coherence tomography (OCT) to evaluate optic nerve and retinal layers Magnetic resonance imaging (MRI) of the brain and orbits to rule out other causes Blood tests to identify possible infectious or autoimmune causes
Treatment Protocols: Corticosteroids to decrease nerve inflammation and swelling Addressing underlying conditions, such as autoimmune disorders or infections Supportive therapies like visual aids or rehabilitative services Monitoring and follow-up to assess recovery and detect relapses Potential use of immunomodulatory medications if related to multiple sclerosis
Clinical Advice & FAQs
Billing Guidance
Is H46.12 a billable ICD-10 code?
Yes, H46.12 is a specific, billable code that can be used to indicate a diagnosis for reimbursement purposes.
Documentation
How do I report H46.12?
Clinical documentation must specify the nature of Retrobulbar neuritis, left eye and any associated comorbidities for accurate reporting.
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