{"code":"P55.1","type":"code","title":"ABO isoimmunization of newborn","codeAlso":[],"includes":[],"modern_v":"official26","codeFirst":[],"excludes1":["congenital stenosis and stricture of bile ducts (Q44.3)","Crigler-Najjar syndrome (E80.5)","Dubin-Johnson syndrome (E80.6)","Gilbert syndrome (E80.4)","hereditary hemolytic anemias (D55-D58)"],"excludes2":[],"isBillable":true,"fyEffectivity":{"fy2026":true,"fy2027":true,"billableFy2026":true,"billableFy2027":true},"sibling_codes":["P55","P55.0","P55.8","P55.9"],"inclusionTerms":[],"sibling_titles":{"code":"P55.9","title":"Hemolytic disease of newborn, unspecified","isBillable":true},"useAdditionalCode":[],"clinicalDefinition":"ABO isoimmunization of newborn is a billable ICD-10-CM diagnosis code (P55.1). Excludes1 (not coded here): congenital stenosis and stricture of bile ducts (Q44.3); Crigler-Najjar syndrome (E80.5); Dubin-Johnson syndrome (E80.6); Gilbert syndrome (E80.4); hereditary hemolytic anemias (D55-D58).","officialDefinition":"ABO isoimmunization of newborn is a billable ICD-10-CM diagnosis code (P55.1). Excludes1 (not coded here): congenital stenosis and stricture of bile ducts (Q44.3); Crigler-Najjar syndrome (E80.5); Dubin-Johnson syndrome (E80.6); Gilbert syndrome (E80.4); hereditary hemolytic anemias (D55-D58).","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":""}