{"code":"O28.1","type":"code","title":"Abnormal biochemical finding on antenatal screening of mother","codeAlso":[],"includes":[],"modern_v":"official26","codeFirst":[],"excludes1":["diagnostic findings classified elsewhere - see Alphabetical Index"],"excludes2":["maternal care related to the fetus and amniotic cavity and possible delivery problems (O30-O48)","maternal diseases classifiable elsewhere but complicating pregnancy, labor and delivery, and the puerperium (O98-O99)"],"isBillable":true,"fyEffectivity":{"fy2026":true,"fy2027":true,"billableFy2026":true,"billableFy2027":true},"sibling_codes":["O28","O28.0","O28.2","O28.3","O28.4","O28.5","O28.8","O28.9"],"inclusionTerms":[],"sibling_titles":{"code":"O28.9","title":"Unspecified abnormal findings on antenatal screening of mother","isBillable":true},"useAdditionalCode":[],"clinicalDefinition":"Abnormal biochemical finding on antenatal screening of mother is a billable ICD-10-CM diagnosis code (O28.1). Excludes1 (not coded here): diagnostic findings classified elsewhere - see Alphabetical Index. Excludes2 (not included here): maternal care related to the fetus and amniotic cavity and possible delivery problems (O30-O48); maternal diseases classifiable elsewhere but complicating pregnancy, labor and delivery, and the puerperium (O98-O99).","officialDefinition":"Abnormal biochemical finding on antenatal screening of mother is a billable ICD-10-CM diagnosis code (O28.1). Excludes1 (not coded here): diagnostic findings classified elsewhere - see Alphabetical Index. Excludes2 (not included here): maternal care related to the fetus and amniotic cavity and possible delivery problems (O30-O48); maternal diseases classifiable elsewhere but complicating pregnancy, labor and delivery, and the puerperium (O98-O99).","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":""}