H35.71 Central serous chorioretinopathy

Name of the Condition

• Central Serous Chorioretinopathy

Summary

Central serous chorioretinopathy 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.

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.
• Reduced visual acuity or difficulty reading.
• Perceived size changes of objects (micropsia or macropsia).
• Central scotoma (blind spot) or dimmed vision.
• Mild color vision impairment.

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

Treatment depends on severity and duration. Observation is common for mild cases, as spontaneous resolution often occurs. For persistent or recurrent cases, options include:

• Observation with monitoring.
• Laser photocoagulation to seal leakage points (if extrafoveal).
• Photodynamic therapy for subfoveal leaks.
• Discontinuation of corticosteroids if applicable.

Prognosis and Follow-Up

Most cases resolve spontaneously within 3–6 months with good visual recovery. Recurrence is possible, especially in chronic or bilateral cases. Follow-up includes regular OCT to monitor fluid resolution and visual acuity testing.

Complications

• Chronic or recurrent central serous chorioretinopathy, leading to permanent vision loss.
• Subretinal fibrosis or atrophy in long-standing cases.
• Reduced contrast sensitivity or persistent metamorphopsia.

Lifestyle & Prevention

• Manage stress through relaxation techniques or counseling.
• Avoid corticosteroid use unless medically necessary.
• Maintain a healthy lifestyle with balanced diet and regular exercise.
• Limit alcohol and caffeine intake, which may exacerbate stress.

When to Seek Professional Help

Seek care if symptoms worsen, persist beyond 3 months, or involve sudden vision loss. Prompt evaluation is needed for recurrent episodes or bilateral involvement, as these may require intervention.

Tips for Medical Coders

Document the laterality (e.g., right/left eye) if specified, as H35.71 is typically used for unilateral cases. Include details on fluid location (macula vs. periphery) and any associated factors (e.g., corticosteroid use) to support clinical correlation. Ensure documentation aligns with the clinical presentation to justify the diagnosis.