ICD-10-CM>G00-G99>G70-G73>G73G73Disorders of myoneural junction and muscle in diseases classified elsewhereNon-Billable/Non-SpecificCodesG73.1Lambert-Eaton syndrome in neoplastic diseaseG73.3Myasthenic syndromes in other diseases classified elsewhereG73.7Myopathy in diseases classified elsewhere