ICD-10-CM Billable Code

H44.121

Parasitic endophthalmitis, unspecified, right eye

Clinical Classification Guidelines

Medical Intelligence & Overview

Parasitic endophthalmitis is a rare but serious eye condition characterized by inflammation inside the eye caused by parasitic organisms. When it affects the right eye specifically, it is classified under the ICD-10 code H44.121. This condition results from an infection where parasites invade the internal eye tissues, leading to potential vision impairment if not diagnosed and treated promptly.

Causes & Symptoms

Clinical Causes: Invasion of the eye by parasitic organisms such as Toxoplasma gondii, Toxocara spp., or other protozoa. Infection transmitted through contaminated water, soil, or food sources. Parasites entering the eye through trauma or injury involving contaminated materials. Spread from other parts of the body through bloodstream infections. Inadequate sterilization of surgical instruments during eye procedures.

Key Symptoms: Blurred or decreased vision in the affected eye. Eye redness and swelling. Presence of floaters or floating spots within the field of vision. Eye pain or discomfort. Sensitivity to light (photophobia). Possible appearance of yellow or cloudy intraocular fluid or tissues. Sometimes, no noticeable symptoms in early stages.

Diagnostic & Treatment

Diagnosis Path: Detailed medical history and assessment of symptoms. Slit-lamp examination to evaluate intraocular tissues. Ultrasound imaging of the eye to detect internal abnormalities. Aqueous or vitreous humor sampling for laboratory analysis to identify the parasitic organisms. Serological tests to detect specific antibodies against parasites. Imaging studies such as ocular coherence tomography (OCT) may assist in detailed visualization.

Treatment Protocols: Antiparasitic medications tailored to the specific organism involved, such as pyrimethamine, sulfadiazine, or other antiparasitic agents. Corticosteroids to control inflammation and immune response inside the eye. Intravitreal injections of medications directly into the eye in some cases. Surgical intervention, such as vitrectomy, to remove infected intraocular tissues or fluids. Management of complications like retinal detachment or glaucoma as needed. Close follow-up with an ophthalmologist to monitor response to treatment.

Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.

Clinical Advice & FAQs

Billing Guidance

Is H44.121 a billable ICD-10 code?
Yes, H44.121 is a specific, billable code that can be used to indicate a diagnosis for reimbursement purposes.

Documentation

How do I report H44.121?
Clinical documentation must specify the nature of Parasitic endophthalmitis, unspecified, right eye and any associated comorbidities for accurate reporting.

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