K64.0 First degree hemorrhoids

Name of the Condition

• First Degree Hemorrhoids
• ICD-10 Code: K64.0

Summary

First degree hemorrhoids are swollen veins in the rectum and anus that remain inside the anal canal and do not prolapse (protrude) during bowel movements or other activities. They are the mildest form of hemorrhoids and often cause minimal symptoms, such as painless bleeding or itching.

Causes

Increased pressure on the rectal veins is the primary cause. This can result from straining during bowel movements, chronic constipation or diarrhea, prolonged sitting, or pregnancy. The pressure disrupts blood flow, leading to vein swelling.

Risk Factors

• Aging
• Family history of hemorrhoids
• Low-fiber diet
• Sedentary lifestyle
• Chronic straining during bowel movements
• Obesity

Symptoms

• Painless bleeding during bowel movements (bright red blood on toilet paper or in stool)
• Mild itching or irritation in the anal area
• Sensation of fullness or discomfort in the rectum

Diagnosis

Diagnosis is typically made through a physical examination, including a digital rectal exam. Anoscopy may be used to visualize internal hemorrhoids and confirm the absence of prolapse.

Treatment Options

• Increased dietary fiber and fluid intake to soften stools
• Over-the-counter topical treatments (creams, ointments) for itching
• Warm sitz baths to reduce discomfort
• Avoiding prolonged sitting or straining
• In some cases, minimally invasive procedures (e.g., rubber band ligation) if symptoms persist

Prognosis and Follow-Up

With lifestyle modifications, most patients experience symptom relief. Follow-up is recommended if bleeding or discomfort continues, as it may indicate a more severe grade or other conditions.

Complications

• Chronic bleeding leading to anemia (rare)
• Thrombosis (blood clot formation) if untreated
• Progression to higher-degree hemorrhoids with prolapse

Lifestyle & Prevention

• Maintain a high-fiber diet (25–30 grams daily)
• Stay hydrated to prevent constipation
• Exercise regularly to improve bowel function
• Avoid straining during bowel movements
• Limit time spent sitting on the toilet

When to Seek Professional Help

Seek care if bleeding is heavy, persistent, or accompanied by pain, or if symptoms do not improve with home care. A healthcare provider should evaluate unexplained rectal bleeding to rule out other conditions.

Tips for Medical Coders

Document the absence of prolapse and confirm the hemorrhoids are confined to the anal canal. Ensure clinical notes specify "first degree" or equivalent terminology to support accurate coding.