E71.31
Disorders of fatty-acid oxidation
Clinical Classification Guidelines
Medical Intelligence & Overview
Disorders of fatty-acid oxidation are a group of rare genetic conditions that affect the body's ability to break down fatty acids for energy. These conditions are caused by deficiencies or dysfunctions in the enzymes responsible for the oxidation process, leading to energy production problems, especially during fasting or increased energy demands. Recognizing and understanding these disorders is crucial for early diagnosis and management to prevent severe health complications.
Causes & Symptoms
Clinical Causes: Genetic mutations affecting enzymes involved in fatty-acid oxidation pathways Inherited in an autosomal recessive manner, meaning a person must inherit two copies of the faulty gene Disruptions in enzymes such as acyl-CoA dehydrogenases (like VLCAD, MCAD), which are crucial for breaking down various types of fatty acids
Key Symptoms: Episodes of hypoglycemia (low blood sugar), especially during fasting or illness Jaundice or yellowing of the skin and eyes Muscle weakness or pain Fatigue and lack of energy Hepatomegaly (enlarged liver) Recurrent episodes of vomiting In severe cases, coma or sudden death, particularly during metabolic crises Developmental delays or neurological issues in some cases
Diagnostic & Treatment
Diagnosis Path: Blood tests to assess blood sugar, ammonia, and liver function levels Urine studies to detect abnormal organic acids Blood acylcarnitine profile analysis to identify specific enzyme deficiencies Genetic testing for mutations in relevant genes Enzyme activity measurement through biopsy of liver or muscle tissue in some cases
Treatment Protocols: Dietary modifications to limit long-chain fatty acids and increase carbohydrate intake during illness or fasting Supplements such as medium-chain triglycerides (MCT oil), which can be easier to metabolize Avoidance of fasting to prevent energy deficits Prompt treatment of illnesses with intravenous glucose to maintain blood sugar levels Regular monitoring and medical follow-up to prevent crises Emergency protocols for rapid response during metabolic decompensation
Clinical Advice & FAQs
Billing Guidance
Is E71.31 a billable ICD-10 code?
Yes, E71.31 is a specific, billable code that can be used to indicate a diagnosis for reimbursement purposes.
Documentation
How do I report E71.31?
Clinical documentation must specify the nature of Disorders of fatty-acid oxidation and any associated comorbidities for accurate reporting.
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