H15.033 Posterior scleritis, bilateral

Name of the Condition

• Posterior Scleritis, Bilateral
• Medical Term: Posterior Scleritis
• ICD Code: H15.033

Summary

Posterior scleritis is an inflammatory condition affecting the posterior (rear) portion of the sclera, the tough, white outer layer of the eyeball. When present bilaterally (in both eyes), it can cause significant eye pain and may lead to vision-threatening complications if not managed appropriately. The condition often requires prompt evaluation and treatment to prevent long-term damage.

Causes

Posterior scleritis may result from autoimmune disorders, infections, or systemic inflammatory diseases. Autoimmune conditions such as rheumatoid arthritis, lupus, or granulomatosis with polyangiitis are common underlying causes. Infections like herpes zoster or syphilis, as well as trauma or surgery, can also trigger scleral inflammation. In some cases, the cause remains idiopathic.

Risk Factors

• Autoimmune diseases (e.g., rheumatoid arthritis, lupus)
• Systemic inflammatory conditions (e.g., vasculitis)
• History of eye trauma or surgery
• Age-related changes in scleral tissue
• Exposure to infectious agents

Symptoms

• Severe, deep eye pain, often described as aching or throbbing
• Redness, typically localized to the sclera
• Blurred vision or reduced visual acuity
• Sensitivity to light (photophobia)
• Tearing or discharge
• Possible swelling of the eyelids

Diagnosis

Diagnosis typically involves a comprehensive eye examination, including slit-lamp biomicroscopy and indirect ophthalmoscopy. Imaging studies such as ultrasound or optical coherence tomography (OCT) may be used to assess scleral thickening or inflammation. Laboratory tests may be performed to identify underlying systemic conditions or infections.

Treatment Options

Treatment focuses on reducing inflammation and managing underlying causes. Corticosteroids (oral or injectable) are commonly used to control inflammation. Immunosuppressive agents may be prescribed for autoimmune-related cases. Topical medications or pain relievers may also be recommended to alleviate symptoms.

Prognosis and Follow-Up

With appropriate treatment, many patients experience improvement in symptoms and preservation of vision. However, bilateral involvement may increase the risk of complications. Regular follow-up with an ophthalmologist is essential to monitor for recurrence or progression.

Complications

Potential complications include vision loss, retinal detachment, glaucoma, or cataracts. Bilateral cases may have a higher risk of severe outcomes if left untreated.

Lifestyle & Prevention

Managing underlying conditions (e.g., autoimmune diseases) and avoiding eye trauma can help reduce risk. Protective eyewear may be advised in certain situations.

When to Seek Professional Help

Seek immediate medical attention if you experience sudden vision changes, severe eye pain, or worsening redness. Prompt evaluation is critical to prevent permanent damage.

Tips for Medical Coders

Use H15.033 for bilateral posterior scleritis. Ensure documentation specifies bilateral involvement and confirms the diagnosis through clinical evaluation or imaging. Avoid using this code for unilateral or unspecified scleritis.