E71.128
Other disorders of propionate metabolism
Clinical Classification Guidelines
Medical Intelligence & Overview
Other disorders of propionate metabolism, classified under ICD-10 code E71.128, are rare inherited conditions that affect how the body processes certain fats and proteins. Propionate is a substance produced during the breakdown of specific amino acids and fats. When the body cannot properly metabolize propionate, it accumulates in the blood and tissues, potentially leading to various health issues. These metabolic disturbances are part of a broader group of organic acidemias, which involve abnormalities in the body's ability to process organic acids. Understanding these conditions can help in early identification and management, although they are complex and require specialized medical care.
Causes & Symptoms
Clinical Causes: Genetic mutations affecting enzymes involved in propionate metabolism Inherited metabolic defects passed from parents to children Deficiencies in specific enzymes such as propionyl-CoA carboxylase or methylmalonyl-CoA mutase Potentially, mutations affecting other related metabolic pathways that influence propionate processing
Key Symptoms: Poor feeding and vomiting in infants Lethargy or decreased activity levels Developmental delays or regression Hypotonia (weak muscle tone) Elevated levels of organic acids detectable in blood and urine Tachypnea (rapid breathing) Susceptibility to infections Potential episodes of metabolic crises, which can be severe and life-threatening
Diagnostic & Treatment
Diagnosis Path: Diagnosis of other disorders of propionate metabolism typically involves a combination of clinical evaluation and laboratory testing. Blood and urine analyses are crucial for detecting abnormal organic acid levels characteristic of these conditions. Newborn screening programs may identify metabolic irregularities early on, prompting further investigation. Confirmatory tests include enzyme activity assays and genetic testing to identify specific mutations involved in the disorder. A comprehensive diagnosis often requires collaboration among metabolic specialists, pediatricians, and genetic counselors.
Treatment Protocols: Dietary restrictions to limit intake of amino acids that produce propionate, such as valine, isoleucine, methionine, and threonine Supplementation with specific nutrients or cofactors to enhance residual enzyme activity Use of specialized medical formulas designed for metabolic management Emergency protocols during metabolic crises, including hospitalization, IV fluids, and supportive care Regular monitoring of blood and urine organic acid levels to assess treatment effectiveness Genetic counseling for affected families
Clinical Advice & FAQs
Billing Guidance
Is E71.128 a billable ICD-10 code?
Yes, E71.128 is a specific, billable code that can be used to indicate a diagnosis for reimbursement purposes.
Documentation
How do I report E71.128?
Clinical documentation must specify the nature of Other disorders of propionate metabolism and any associated comorbidities for accurate reporting.
Cite this Clinical Reference