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Dyspepsia

Dr. Nghia Nguyen at GastroDoxs in Houston specializes in diagnosing and treating functional dyspepsia (ICD-10 K30). Offering personalized lifestyle, dietary, and medical therapies, plus advanced endoscopic testing, Dr. Nguyen helps relieve indigestion symptoms and restore digestive comfort quickly and compassionately.

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Texas Medical Board
Harris County Medical Society
American College of Gastroenterology
American Society for Gastrointestinal Endoscopy
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Houston Methodist leading Medicine
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Nghia Nguyen

About the Expert

Dr. Nghia Nguyen, DO, is a board-certified gastroenterologist providing advanced digestive care in the Greater Houston area. He earned his medical degree from the Texas College of Osteopathic Medicine and completed both his Internal Medicine residency and Gastroenterology fellowship at the University of Texas at Rio Grande Valley. Dr. Nguyen specializes in treating conditions such as acid reflux, irritable bowel syndrome (IBS), inflammatory bowel disease (IBD), and liver disorders.

Common Causes and Risk Factors

  • Eating too much or too quickly
  • Spicy, greasy, or acidic foods
  • Stress or anxiety
  • Smoking or alcohol use
  • Painkillers such as NSAIDs
  • Underlying conditions like ulcers or gallstones

Signs and Symptoms

  • Pain or burning under the ribs
  • Feeling full soon after starting a meal
  • Bloating or gassy sensation
  • Nausea or frequent burping
  • Sour taste in the mouth or heartburn

How Dr. Nghia Nguyen Diagnoses Dyspepsia &?

Dr. Nguyen uses a step-by-step approach:

Medical History and Physical Exam

He reviews your symptoms—burning or stabbing pain in the upper abdomen, early fullness, bloating or nausea—and asks about your eating habits, stress levels, alcohol/tobacco use, NSAID intake and any referred pain to your back.

Laboratory Tests

  • Bloodwork to check for Helicobacter pylori, liver and pancreatic enzymes, and basic metabolic panel.
  • Stool antigen or breath test if H. pylori infection is suspected.

Endoscopy and Imaging

  • Upper endoscopy (EGD) to visualize the esophagus, stomach and duodenum for ulcers or inflammation.
  • Abdominal ultrasound to rule out gallstones, liver disease or biliary tract issues.

Functional Studies (if needed)

Gastric emptying scintigraphy or 24-hour pH monitoring to assess stomach motility and acid exposure when initial evaluations are inconclusive.

Dr. Nghia Nguyen
Treatment

Our Team offers a full range of care for dyspepsia.

1. Lifestyle and Diet Modifications

  • Eating smaller meals more often
  • Avoiding foods that trigger symptoms, like coffee or fried foods
  • Reducing stress through deep breathing or meditation
  • Stopping smoking and limiting alcohol

2. Medications

  • Antacids to calm stomach acid
  • H2 blockers or PPIs to reduce acid production
  • Prokinetics to help food move through the stomach faster

3. Minimally Invasive or Advanced Procedures

  • Endoscopic procedures to help the valve between the stomach and esophagus work better
  • Motility tests or pH monitoring for a closer look at stomach function
Dr Nghia Nguyen

About the Author

Dr. Nghia Nguyen, DO, is a board-certified gastroenterologist providing advanced digestive care in the Greater Houston area. He earned his medical degree from the Texas College of Osteopathic Medicine and completed both his Internal Medicine residency and Gastroenterology fellowship at the University of Texas at Rio Grande Valley. Dr. Nguyen specializes in treating conditions such as acid reflux, irritable bowel syndrome (IBS), inflammatory bowel disease (IBD), and liver disorders.

Frequently Asked Questions

What is the ICD-10 code for dyspepsia?

The code for functional dyspepsia is K30, which you can use for insurance and medical documentation.

Can dyspepsia cause back pain?

Yes. Upper abdominal discomfort can sometimes radiate to the back. Dr. Nguyen evaluates both areas during your exam.

How is functional dyspepsia treated?

Treatment includes dietary modifications, stress management techniques, and medications like antacids, H2 blockers, or PPIs tailored by Dr. Nguyen.

How long does dyspepsia last?

Duration varies. Some patients improve within days of lifestyle changes, while others may need weeks of treatment to see relief.

When should I see a doctor in Houston?

Schedule an appointment if you experience persistent pain, unexplained weight loss, vomiting, or signs of gastrointestinal bleeding.

What lifestyle changes help with dyspepsia?

Eat smaller, more frequent meals, avoid trigger foods (like spicy or fatty dishes), reduce stress, quit smoking, and limit alcohol consumption.

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