{"code":"M51.1","type":"code","title":"Thoracic, thoracolumbar and lumbosacral intervertebral disc disorders with radiculopathy","codeAlso":[],"includes":[],"modern_v":"official26","codeFirst":[],"excludes1":["lumbar radiculitis NOS (M54.16)","sciatica NOS (M54.3)","current injury - see injury of spine by body region","discitis NOS (M46.4-)"],"excludes2":["cervical and cervicothoracic disc disorders (M50.-)","sacral and sacrococcygeal disorders (M53.3)"],"isBillable":false,"fyEffectivity":{"fy2026":true,"fy2027":true,"billableFy2026":false,"billableFy2027":false},"sibling_codes":["M51.14","M51.15","M51.16","M51.17"],"inclusionTerms":["Sciatica due to intervertebral disc disorder"],"sibling_titles":{"code":"M51.17","title":"Intervertebral disc disorders with radiculopathy, lumbosacral region","isBillable":true},"useAdditionalCode":[],"clinicalDefinition":"Thoracic, thoracolumbar and lumbosacral intervertebral disc disorders with radiculopathy is a non-billable ICD-10-CM category code (M51.1). A more specific billable subcode must be selected for claims submission. Inclusion terms: Sciatica due to intervertebral disc disorder. Excludes1 (not coded here): lumbar radiculitis NOS (M54.16); sciatica NOS (M54.3); current injury - see injury of spine by body region; discitis NOS (M46.4-). Excludes2 (not included here): cervical and cervicothoracic disc disorders (M50.-); sacral and sacrococcygeal disorders (M53.3).","officialDefinition":"Thoracic, thoracolumbar and lumbosacral intervertebral disc disorders with radiculopathy is a non-billable ICD-10-CM category code (M51.1). A more specific billable subcode must be selected for claims submission. Inclusion terms: Sciatica due to intervertebral disc disorder. Excludes1 (not coded here): lumbar radiculitis NOS (M54.16); sciatica NOS (M54.3); current injury - see injury of spine by body region; discitis NOS (M46.4-). Excludes2 (not included here): cervical and cervicothoracic disc disorders (M50.-); sacral and sacrococcygeal disorders (M53.3).","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":{"current injury - see injury of spine by body region":"M51","discitis NOS (M46.4-)":"M51","cervical and cervicothoracic disc disorders (M50.-)":"M51","sacral and sacrococcygeal disorders (M53.3)":"M51"},"hcc":{"mapped":false,"model":"CMS-HCC V28","paymentYear":"2026","categories":[],"otherModels":[]}}