{"code":"Z03.818","type":"code","title":"Encounter for observation for suspected exposure to other biological agents ruled out","codeAlso":[],"includes":[],"modern_v":"official26","codeFirst":[],"excludes1":["contact with and (suspected) exposures hazardous to health (Z77.-)","encounter for observation and evaluation of newborn for suspected diseases and conditions ruled out (Z05.-)","person with feared complaint in whom no diagnosis is made (Z71.1)","signs or symptoms under study- code to signs or symptoms"],"excludes2":["examinations related to pregnancy and reproduction (Z30-Z36, Z39.-)"],"isBillable":true,"fyEffectivity":{"fy2026":true,"fy2027":true,"billableFy2026":true,"billableFy2027":true},"inclusionTerms":[],"useAdditionalCode":[],"clinicalDefinition":"Encounter for observation for suspected exposure to other biological agents ruled out is a billable ICD-10-CM diagnosis code (Z03.818). Excludes1 (not coded here): contact with and (suspected) exposures hazardous to health (Z77.-); encounter for observation and evaluation of newborn for suspected diseases and conditions ruled out (Z05.-); person with feared complaint in whom no diagnosis is made (Z71.1); signs or symptoms under study- code to signs or symptoms. Excludes2 (not included here): examinations related to pregnancy and reproduction (Z30-Z36, Z39.-).","officialDefinition":"Encounter for observation for suspected exposure to other biological agents ruled out is a billable ICD-10-CM diagnosis code (Z03.818). Excludes1 (not coded here): contact with and (suspected) exposures hazardous to health (Z77.-); encounter for observation and evaluation of newborn for suspected diseases and conditions ruled out (Z05.-); person with feared complaint in whom no diagnosis is made (Z71.1); signs or symptoms under study- code to signs or symptoms. Excludes2 (not included here): examinations related to pregnancy and reproduction (Z30-Z36, Z39.-).","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":[]}}