H21.33
Parasitic cyst of iris, ciliary body or anterior chamber
Clinical Classification Guidelines
Medical Intelligence & Overview
A parasitic cyst in the eye refers to the growth of a cystic structure caused by a parasitic infection located within the iris, ciliary body, or anterior chamber of the eye. These cysts are unusual and can impact vision, depending on their size and location. Recognizing and understanding this condition is crucial for timely management and preservation of eye health.
Causes & Symptoms
Clinical Causes: Infection by parasitic organisms such as Toxoplasma gondii, cysticercosis, or other parasitic protozoa Ingestion of contaminated food or water that harbor the infectious cysts Bloodborne spread of parasites from other infected areas in the body Insect vectors transmitting parasites through bites
Key Symptoms: Visual disturbances, such as blurred vision or loss of clarity Presence of a visible cyst or swelling within the eye structures Eye redness and inflammation Pain or discomfort in the eye Sensitivity to light (photophobia) In some cases, no noticeable symptoms if the cyst is small or inactive
Diagnostic & Treatment
Diagnosis Path: Current diagnosis involves a comprehensive eye examination, including slit-lamp evaluation to observe the cyst's appearance and location. Additional diagnostic procedures may include:
Treatment Protocols: Management of parasitic cysts in the eye typically involves a combination of medical and surgical approaches, depending on the cyst's size, location, and activity. Options include:
Clinical Advice & FAQs
Billing Guidance
Is H21.33 a billable ICD-10 code?
Yes, H21.33 is a specific, billable code that can be used to indicate a diagnosis for reimbursement purposes.
Documentation
How do I report H21.33?
Clinical documentation must specify the nature of Parasitic cyst of iris, ciliary body or anterior chamber and any associated comorbidities for accurate reporting.
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