{"code":"H95.131","type":"code","title":"Mucosal cyst of postmastoidectomy cavity, right ear","codeAlso":[],"includes":[],"modern_v":"official26","codeFirst":[],"excludes1":[],"excludes2":[],"isBillable":true,"fyEffectivity":{"fy2026":true,"fy2027":true,"billableFy2026":true,"billableFy2027":true},"sibling_codes":["H95","H95.0","H95.00","H95.01","H95.02","H95.03","H95.1","H95.11","H95.111","H95.112","H95.113","H95.119","H95.12","H95.121","H95.122","H95.123","H95.129","H95.13","H95.132","H95.133","H95.139","H95.19","H95.191","H95.192","H95.193","H95.199","H95.2","H95.21","H95.22","H95.3","H95.31","H95.32","H95.4","H95.41","H95.42","H95.5","H95.51","H95.52","H95.53","H95.54","H95.8","H95.81","H95.811","H95.812","H95.813","H95.819","H95.88","H95.89"],"inclusionTerms":[],"sibling_titles":{"code":"H95.89","title":"Other postprocedural complications and disorders of the ear and mastoid process, not elsewhere classified","isBillable":true},"useAdditionalCode":[],"clinicalDefinition":"Mucosal cyst of postmastoidectomy cavity, right ear is a billable ICD-10-CM diagnosis code (H95.131).","officialDefinition":"Mucosal cyst of postmastoidectomy cavity, right ear is a billable ICD-10-CM diagnosis code (H95.131).","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":"","hcc":{"mapped":false,"model":"CMS-HCC V28","paymentYear":"2026","categories":[],"otherModels":[]}}