{"code":"M27.40","type":"code","title":"Unspecified cyst of jaw","codeAlso":[],"includes":[],"modern_v":"official26","codeFirst":[],"excludes1":["cysts of oral region (K09.-)","latent bone cyst of jaw (M27.0)","Stafne's cyst (M27.0)","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","M27.49","M27.5","M27.51","M27.52","M27.53","M27.59","M27.6","M27.61","M27.62","M27.63","M27.69","M27.8","M27.9"],"inclusionTerms":["Cyst of jaw NOS"],"sibling_titles":{"code":"M27.9","title":"Disease of jaws, unspecified","isBillable":true},"useAdditionalCode":[],"clinicalDefinition":"Unspecified cyst of jaw is a billable ICD-10-CM diagnosis code (M27.40). Inclusion terms: Cyst of jaw NOS. Excludes1 (not coded here): cysts of oral region (K09.-); latent bone cyst of jaw (M27.0); Stafne's cyst (M27.0); hemifacial atrophy or hypertrophy (Q67.4); unilateral condylar hyperplasia or hypoplasia (M27.8).","officialDefinition":"Unspecified cyst of jaw is a billable ICD-10-CM diagnosis code (M27.40). Inclusion terms: Cyst of jaw NOS. Excludes1 (not coded here): cysts of oral region (K09.-); latent bone cyst of jaw (M27.0); Stafne's cyst (M27.0); 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":""}