H49.813
Kearns-Sayre syndrome, bilateral
Clinical Classification Guidelines
Medical Intelligence & Overview
Kearns-Sayre Syndrome (KSS) is a rare, inherited disorder that affects multiple parts of the body, notably the eyes and the nervous system. When described as bilateral, it indicates that the symptoms and effects are present in both sides of the body or both eyes. This syndrome is characterized by progressive weakness and dysfunction of various tissues, leading to a range of health challenges. It typically manifests in childhood or early adulthood and requires ongoing medical attention to manage its symptoms.
Causes & Symptoms
Clinical Causes: Mutations in mitochondrial DNA: KSS is primarily caused by deletions in mitochondrial DNA, which are inherited maternally. Mitochondria are the energy-producing structures within cells, and their impairment can lead to widespread effects. Inherited mitochondrial disorders: As an inherited condition, KSS is passed down from mothers to their children, although new mutations may occasionally occur. Genetic mutations affecting mitochondrial function: These mutations interfere with the mitochondria's ability to produce energy efficiently, resulting in symptoms affecting energy-demanding tissues.
Key Symptoms: Progressive external ophthalmoplegia (weakness of eye muscles leading to drooping eyelids and limited eye movement) Retinal pigmentary changes (pigmentary retinopathy), which can cause vision disturbances Heart conduction defects, potentially leading to arrhythmias or heart blocks Muscle weakness and exercise intolerance Hearing loss Short stature and developmental delays Ptosis (drooping eyelids) Balance and coordination difficulties Diabetes or other endocrine problems
Diagnostic & Treatment
Diagnosis Path: Diagnosis typically involves a combination of clinical evaluation, medical history, and specialized tests. Confirmation often requires genetic testing to identify deletions or mutations in mitochondrial DNA. Additional assessments may include:
Treatment Protocols: There is no cure for Kearns-Sayre Syndrome, so treatment focuses on managing symptoms and preventing complications. Approaches may include:
Clinical Advice & FAQs
Billing Guidance
Is H49.813 a billable ICD-10 code?
Yes, H49.813 is a specific, billable code that can be used to indicate a diagnosis for reimbursement purposes.
Documentation
How do I report H49.813?
Clinical documentation must specify the nature of Kearns-Sayre syndrome, bilateral and any associated comorbidities for accurate reporting.
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