{"code":"M20.022","type":"code","title":"Boutonnière deformity of left finger(s)","codeAlso":[],"includes":[],"modern_v":"official26","codeFirst":[],"excludes1":["clubbing of fingers (R68.3)","palmar fascial fibromatosis [Dupuytren] (M72.0)","trigger finger (M65.3)","acquired absence of fingers and toes (Z89.-)","congenital absence of fingers and toes (Q71.3-, Q72.3-)","congenital deformities and malformations of fingers and toes (Q66.-, Q68-Q70, Q74.-)"],"excludes2":["joints of the spine (M40-M54)"],"isBillable":true,"fyEffectivity":{"fy2026":true,"fy2027":true,"billableFy2026":true,"billableFy2027":true},"inclusionTerms":[],"useAdditionalCode":[],"clinicalDefinition":"Boutonnière deformity of left finger(s) is a billable ICD-10-CM diagnosis code (M20.022). Excludes1 (not coded here): clubbing of fingers (R68.3); palmar fascial fibromatosis [Dupuytren] (M72.0); trigger finger (M65.3); acquired absence of fingers and toes (Z89.-); congenital absence of fingers and toes (Q71.3-, Q72.3-); congenital deformities and malformations of fingers and toes (Q66.-, Q68-Q70, Q74.-). Excludes2 (not included here): joints of the spine (M40-M54).","officialDefinition":"Boutonnière deformity of left finger(s) is a billable ICD-10-CM diagnosis code (M20.022). Excludes1 (not coded here): clubbing of fingers (R68.3); palmar fascial fibromatosis [Dupuytren] (M72.0); trigger finger (M65.3); acquired absence of fingers and toes (Z89.-); congenital absence of fingers and toes (Q71.3-, Q72.3-); congenital deformities and malformations of fingers and toes (Q66.-, Q68-Q70, Q74.-). Excludes2 (not included here): joints of the spine (M40-M54).","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":""}