H35.713 Central serous chorioretinopathy, bilateral

Name of the Condition

• Central serous chorioretinopathy, bilateral

Summary

Central serous chorioretinopathy (CSC) is a condition characterized by fluid accumulation beneath the retina, typically in the macula, leading to temporary vision changes. It occurs when the retinal pigment epithelium (RPE) allows fluid to leak into the subretinal space, disrupting normal retinal function. This condition affects both eyes in this specific code.

Causes

The exact cause is not fully understood, but it may involve dysfunction of the RPE, which regulates fluid balance in the retina. Stress, corticosteroid use, or hormonal changes are thought to contribute to RPE disruption, allowing fluid leakage from the choroid into the subretinal space.

Risk Factors

• Male gender, particularly ages 20–50.
• Chronic stress or type A personality traits.
• Use of corticosteroids (oral, inhaled, or topical).
• Pregnancy or recent childbirth.
• Systemic conditions like hypertension or autoimmune disorders.

Symptoms

• Blurred or distorted central vision in both eyes.
• Reduced visual acuity or difficulty reading with both eyes.
• Perceived size changes of objects (micropsia or macropsia) in both eyes.
• Central scotoma (blind spot) or dimmed vision in both eyes.
• Mild color vision impairment in both eyes.

Diagnosis

Diagnosis requires a comprehensive eye exam, including dilated fundus evaluation to detect subretinal fluid. Optical coherence tomography (OCT) confirms fluid accumulation and assesses retinal thickness. Fluorescein angiography may identify leakage points in the RPE.

Treatment Options

• Observation for mild or self-resolving cases.
• Laser photocoagulation to seal leakage points in persistent cases.
• Photodynamic therapy (PDT) for chronic or recurrent cases.
• Discontinuation of corticosteroids if applicable.
• Stress management or lifestyle modifications.

Prognosis and Follow-Up

Most cases resolve spontaneously within 3–6 months with good visual recovery. Chronic or recurrent cases may require ongoing monitoring. Follow-up includes regular eye exams to assess retinal status and visual function.

Complications

• Chronic CSC with persistent subretinal fluid.
• Permanent vision loss or reduced visual acuity.
• Recurrence in one or both eyes.
• Choroidal neovascularization (rare).

Lifestyle & Prevention

• Manage stress through relaxation techniques or counseling.
• Avoid corticosteroid use unless medically necessary.
• Maintain a healthy lifestyle with balanced diet and exercise.
• Monitor systemic conditions like hypertension.

When to Seek Professional Help

Seek immediate care if vision changes worsen, new blind spots appear, or symptoms persist beyond 3 months. Prompt evaluation is needed for sudden vision loss or severe distortion.

Tips for Medical Coders

Use H35.713 for bilateral central serous chorioretinopathy. Document laterality (bilateral) and confirm clinical findings (e.g., OCT, angiography) to support the diagnosis. Ensure specificity in clinical notes to justify the bilateral designation.