{"code":"R94.13","type":"code","title":"Abnormal results of function studies of peripheral nervous system","codeAlso":[],"includes":["abnormal results of radionuclide [radioisotope] uptake studies","abnormal results of scintigraphy","nonspecific abnormal findings on diagnostic imaging by computerized axial tomography [CAT scan]","nonspecific abnormal findings on diagnostic imaging by magnetic resonance imaging [MRI][NMR]","nonspecific abnormal findings on diagnostic imaging by positron emission tomography [PET scan]","nonspecific abnormal findings on diagnostic imaging by thermography","nonspecific abnormal findings on diagnostic imaging by ultrasound [echogram]","nonspecific abnormal findings on diagnostic imaging by X-ray examination"],"modern_v":"official26","codeFirst":[],"excludes1":["abnormal findings on antenatal screening of mother (O28.-)","diagnostic abnormal findings classified elsewhere - see Alphabetical Index"],"excludes2":[],"isBillable":false,"fyEffectivity":{"fy2026":true,"fy2027":true,"billableFy2026":false,"billableFy2027":false},"sibling_codes":["R94.130","R94.131","R94.138"],"inclusionTerms":[],"sibling_titles":{"code":"R94.138","title":"Abnormal results of other function studies of peripheral nervous system","isBillable":true},"useAdditionalCode":[],"clinicalDefinition":"Abnormal results of function studies of peripheral nervous system is a non-billable ICD-10-CM category code (R94.13). A more specific billable subcode must be selected for claims submission.","officialDefinition":"Abnormal results of function studies of peripheral nervous system is a non-billable ICD-10-CM category code (R94.13). A more specific billable subcode must be selected for claims submission. Includes: abnormal results of radionuclide [radioisotope] uptake studies; abnormal results of scintigraphy; nonspecific abnormal findings on diagnostic imaging by computerized axial tomography [CAT scan]; nonspecific abnormal findings on diagnostic imaging by magnetic resonance imaging [MRI][NMR]; nonspecific abnormal findings on diagnostic imaging by positron emission tomography [PET scan]; nonspecific abnormal findings on diagnostic imaging by thermography; nonspecific abnormal findings on diagnostic imaging by ultrasound [echogram]; nonspecific abnormal findings on diagnostic imaging by X-ray examination. Excludes1 (not coded here): abnormal findings on antenatal screening of mother (O28.-); diagnostic abnormal findings classified elsewhere - see Alphabetical Index.","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":"","hcc":{"mapped":false,"model":"CMS-HCC V28","paymentYear":"2026","categories":[],"otherModels":[]}}