{"code":"E31.20","type":"code","title":"Multiple endocrine neoplasia [MEN] syndrome, unspecified","codeAlso":["any associated malignancies and other conditions associated with the syndromes"],"includes":[],"modern_v":"official26","codeFirst":[],"excludes1":["ataxia telangiectasia [Louis-Bar] (G11.3)","dystrophia myotonica [Steinert] (G71.11)","pseudohypoparathyroidism (E20.1)","galactorrhea (N64.3)","gynecomastia (N62)"],"excludes2":[],"isBillable":true,"fyEffectivity":{"fy2026":true,"fy2027":true,"billableFy2026":true,"billableFy2027":true},"sibling_codes":["E31","E31.0","E31.1","E31.2","E31.21","E31.22","E31.23","E31.8","E31.9"],"inclusionTerms":["Multiple endocrine adenomatosis NOS","Multiple endocrine neoplasia [MEN] syndrome NOS"],"sibling_titles":{"code":"E31.9","title":"Polyglandular dysfunction, unspecified","isBillable":true},"useAdditionalCode":[],"clinicalDefinition":"Multiple endocrine neoplasia [MEN] syndrome, unspecified is a billable ICD-10-CM diagnosis code (E31.20). Inclusion terms: Multiple endocrine adenomatosis NOS; Multiple endocrine neoplasia [MEN] syndrome NOS. Excludes1 (not coded here): ataxia telangiectasia [Louis-Bar] (G11.3); dystrophia myotonica [Steinert] (G71.11); pseudohypoparathyroidism (E20.1); galactorrhea (N64.3); gynecomastia (N62). Code also: any associated malignancies and other conditions associated with the syndromes.","officialDefinition":"Multiple endocrine neoplasia [MEN] syndrome, unspecified is a billable ICD-10-CM diagnosis code (E31.20). Inclusion terms: Multiple endocrine adenomatosis NOS; Multiple endocrine neoplasia [MEN] syndrome NOS. Excludes1 (not coded here): ataxia telangiectasia [Louis-Bar] (G11.3); dystrophia myotonica [Steinert] (G71.11); pseudohypoparathyroidism (E20.1); galactorrhea (N64.3); gynecomastia (N62). Code also: any associated malignancies and other conditions associated with the syndromes.","seventhCharacterInstructions":[],"workflowProtocols":[],"guidelines":{"whenToUse":[],"whenNotToUse":[],"commonBillingMistakes":[],"codeComparisons":[],"documentationChecklist":[]},"domainLandscape":{"summary":"Primary diagnostic domain and clinical landscape evaluation.","keyCategories":[],"diagnosticContinuum":"Progression continuum from acute presentation to resolution."},"children":[],"hierarchy":[],"relatedCodes":[],"relevantCPTCodes":[],"documentationTips":[],"caseStudies":[],"description":"","overview":""}