{"code":"M43.05","type":"code","title":"Spondylolysis, thoracolumbar region","codeAlso":[],"includes":[],"modern_v":"official26","codeFirst":[],"excludes1":["congenital spondylolysis (Q76.2)","spondylolisthesis (M43.1)","congenital spondylolysis and spondylolisthesis (Q76.2)","hemivertebra (Q76.3-Q76.4)","Klippel-Feil syndrome (Q76.1)","lumbarization and sacralization (Q76.4)","platyspondylisis (Q76.4)","spina bifida occulta (Q76.0)","spinal curvature in osteoporosis (M80.-)","spinal curvature in Paget's disease of bone [osteitis deformans] (M88.-)"],"excludes2":[],"isBillable":true,"fyEffectivity":{"fy2026":true,"fy2027":true,"billableFy2026":true,"billableFy2027":true},"sibling_codes":["M43","M43.0","M43.00","M43.01","M43.02","M43.03","M43.04","M43.06","M43.07","M43.08","M43.09","M43.1","M43.10","M43.11","M43.12","M43.13","M43.14","M43.15","M43.16","M43.17","M43.18","M43.19","M43.2","M43.20","M43.21","M43.22","M43.23","M43.24","M43.25","M43.26","M43.27","M43.28","M43.3","M43.4","M43.5","M43.5X","M43.5X2","M43.5X3","M43.5X4","M43.5X5","M43.5X6","M43.5X7","M43.5X8","M43.5X9","M43.6","M43.8","M43.8X","M43.8X1","M43.8X2","M43.8X3","M43.8X4","M43.8X5","M43.8X6","M43.8X7","M43.8X8","M43.8X9","M43.9"],"inclusionTerms":[],"sibling_titles":{"code":"M43.9","title":"Deforming dorsopathy, unspecified","isBillable":true},"useAdditionalCode":[],"clinicalDefinition":"Spondylolysis, thoracolumbar region is a billable ICD-10-CM diagnosis code (M43.05). Excludes1 (not coded here): congenital spondylolysis (Q76.2); spondylolisthesis (M43.1); congenital spondylolysis and spondylolisthesis (Q76.2); hemivertebra (Q76.3-Q76.4); Klippel-Feil syndrome (Q76.1); lumbarization and sacralization (Q76.4); platyspondylisis (Q76.4); spina bifida occulta (Q76.0); spinal curvature in osteoporosis (M80.-); spinal curvature in Paget's disease of bone [osteitis deformans] (M88.-).","officialDefinition":"Spondylolysis, thoracolumbar region is a billable ICD-10-CM diagnosis code (M43.05). Excludes1 (not coded here): congenital spondylolysis (Q76.2); spondylolisthesis (M43.1); congenital spondylolysis and spondylolisthesis (Q76.2); hemivertebra (Q76.3-Q76.4); Klippel-Feil syndrome (Q76.1); lumbarization and sacralization (Q76.4); platyspondylisis (Q76.4); spina bifida occulta (Q76.0); spinal curvature in osteoporosis (M80.-); spinal curvature in Paget's disease of bone [osteitis deformans] (M88.-).","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":""}