E71120 - A rare genetic disorder where the body cannot properly break down certain proteins and fats

International Classification of Diseases

Last updated: 3/24/2026

What is a ICD-10 Code?

ICD-10 (International Classification of Diseases, 10th Revision) codes are used to classify and code all diagnoses, symptoms, and procedures recorded in association with hospital care. These codes provide a standardized way to track health conditions and their treatment outcomes.

Detailed Description

Methylmalonic acidemia is an inherited metabolic disorder caused by a deficiency in enzymes needed to process certain amino acids (building blocks of proteins) and odd-chain fatty acids. When these substances cannot be properly broken down, methylmalonic acid builds up in the blood and urine, which can be toxic to the body. This condition is present from birth and can affect multiple organ systems including the brain, liver, and kidneys. Symptoms may include developmental delays, feeding difficulties, vomiting, lethargy, and in severe cases, life-threatening complications.

Additional Information

This is a lifelong condition requiring ongoing specialized medical management. Treatment typically involves dietary protein restriction, vitamin B12 supplementation, and careful monitoring to prevent metabolic crises.

Category

Inborn errors of metabolism

Medical Specialty

Medical genetics, Pediatric metabolism

Expected Costs

Your actual cost will depend on your insurance coverage, provider location, and specific circumstances.

What's Required Before This

  • Genetic testing
  • Metabolic screening
  • Family history assessment

What to Expect After

  • Regular metabolic monitoring
  • Specialized diet management
  • Genetic counseling
  • Multidisciplinary care team
  • Emergency action plans

Why Understanding This Code Matters

On Your Medical Bill

This code appears on your medical bills to identify the specific service, procedure, drug, or medical diagnosis you received. Understanding what it means helps you verify you're being charged correctly and know what to expect.

For Your Health

Knowing what this code represents helps you understand your treatment plan, ask better questions during appointments, and track your healthcare journey more effectively.

Want This Level of Detail on All Your Claims?

Get detailed explanations for every medical code on your Medicare bills. Currently supporting Medicare only.