{"code":"M27.8","type":"code","title":"Other specified diseases of jaws","codeAlso":[],"includes":[],"modern_v":"official26","codeFirst":[],"excludes1":["jaw pain (R68.84)","hemifacial atrophy or hypertrophy (Q67.4)","unilateral condylar hyperplasia or hypoplasia (M27.8)"],"excludes2":[],"isBillable":true,"fyEffectivity":{"fy2026":true,"fy2027":true,"billableFy2026":true,"billableFy2027":true},"sibling_codes":["M27","M27.0","M27.1","M27.2","M27.3","M27.4","M27.40","M27.49","M27.5","M27.51","M27.52","M27.53","M27.59","M27.6","M27.61","M27.62","M27.63","M27.69","M27.9"],"inclusionTerms":["Cherubism","Exostosis","Fibrous dysplasia","Unilateral condylar hyperplasia","Unilateral condylar hypoplasia"],"sibling_titles":{"code":"M27.9","title":"Disease of jaws, unspecified","isBillable":true},"useAdditionalCode":[],"clinicalDefinition":"Other specified diseases of jaws is a billable ICD-10-CM diagnosis code (M27.8). Inclusion terms: Cherubism; Exostosis; Fibrous dysplasia; Unilateral condylar hyperplasia; Unilateral condylar hypoplasia. Excludes1 (not coded here): jaw pain (R68.84); hemifacial atrophy or hypertrophy (Q67.4); unilateral condylar hyperplasia or hypoplasia (M27.8).","officialDefinition":"Other specified diseases of jaws is a billable ICD-10-CM diagnosis code (M27.8). Inclusion terms: Cherubism; Exostosis; Fibrous dysplasia; Unilateral condylar hyperplasia; Unilateral condylar hypoplasia. Excludes1 (not coded here): jaw pain (R68.84); hemifacial atrophy or hypertrophy (Q67.4); unilateral condylar hyperplasia or hypoplasia (M27.8).","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":"","noteProvenance":{"hemifacial atrophy or hypertrophy (Q67.4)":"M27","unilateral condylar hyperplasia or hypoplasia (M27.8)":"M27"},"hcc":{"mapped":false,"model":"CMS-HCC V28","paymentYear":"2026","categories":[],"otherModels":[]}}