{"code":"O35.01X3","type":"code","title":"Maternal care for (suspected) central nervous system malformation or damage in fetus, agenesis of the corpus callosum, fetus 3","codeAlso":["any associated maternal condition"],"includes":["the listed conditions in the fetus as a reason for hospitalization or other obstetric care to the mother, or for termination of pregnancy"],"modern_v":"official26","codeFirst":[],"excludes1":["encounter for suspected maternal and fetal conditions ruled out (Z03.7-)"],"excludes2":["chromosomal abnormality in fetus (O35.1-)"],"isBillable":true,"fyEffectivity":{"fy2026":true,"fy2027":true,"billableFy2026":true,"billableFy2027":true},"sibling_codes":["O35","O35.0","O35.00","O35.00X0","O35.00X1","O35.00X2","O35.00X3","O35.00X4","O35.00X5","O35.00X9","O35.01","O35.01X0","O35.01X1","O35.01X2","O35.01X4","O35.01X5","O35.01X9","O35.02","O35.02X0","O35.02X1","O35.02X2","O35.02X3","O35.02X4","O35.02X5","O35.02X9","O35.03","O35.03X0","O35.03X1","O35.03X2","O35.03X3","O35.03X4","O35.03X5","O35.03X9","O35.04","O35.04X0","O35.04X1","O35.04X2","O35.04X3","O35.04X4","O35.04X5","O35.04X9","O35.05","O35.05X0","O35.05X1","O35.05X2","O35.05X3","O35.05X4","O35.05X5","O35.05X9","O35.06","O35.06X0","O35.06X1","O35.06X2","O35.06X3","O35.06X4","O35.06X5","O35.06X9","O35.07","O35.07X0","O35.07X1","O35.07X2","O35.07X3","O35.07X4","O35.07X5","O35.07X9","O35.08","O35.08X0","O35.08X1","O35.08X2","O35.08X3","O35.08X4","O35.08X5","O35.08X9","O35.09","O35.09X0","O35.09X1","O35.09X2","O35.09X3","O35.09X4","O35.09X5","O35.09X9","O35.1","O35.10","O35.10X0","O35.10X1","O35.10X2","O35.10X3","O35.10X4","O35.10X5","O35.10X9","O35.11","O35.11X0","O35.11X1","O35.11X2","O35.11X3","O35.11X4","O35.11X5","O35.11X9","O35.12","O35.12X0"],"inclusionTerms":[],"sibling_titles":{"code":"O35.12X0","title":"Maternal care for (suspected) chromosomal abnormality in fetus, Trisomy 18, not applicable or unspecified","isBillable":true},"useAdditionalCode":[],"clinicalDefinition":"Maternal care for (suspected) central nervous system malformation or damage in fetus, agenesis of the corpus callosum, fetus 3 is a billable ICD-10-CM diagnosis code (O35.013). Includes: the listed conditions in the fetus as a reason for hospitalization or other obstetric care to the mother, or for termination of pregnancy. Excludes1 (not coded here): encounter for suspected maternal and fetal conditions ruled out (Z03.7-). Excludes2 (not included here): chromosomal abnormality in fetus (O35.","officialDefinition":"Maternal care for (suspected) central nervous system malformation or damage in fetus, agenesis of the corpus callosum, fetus 3 is a billable ICD-10-CM diagnosis code (O35.013). Includes: the listed conditions in the fetus as a reason for hospitalization or other obstetric care to the mother, or for termination of pregnancy. Excludes1 (not coded here): encounter for suspected maternal and fetal conditions ruled out (Z03.7-). Excludes2 (not included here): chromosomal abnormality in fetus (O35.1-). Code also: any associated maternal condition. 7th character: One of the following 7th characters is to be assigned to each code under category O35.  7th character 0 is for single gestations and multiple gestations where the fetus is unspecified.  7th characters 1 through 9 are for cases of multiple gestations to identify the fetus for which the code applies. The appropriate code from category O30, Multiple gestation, must also be assigned when assigning a code from category O35 that has a 7th character of 1 through 9..","seventhCharacterInstructions":["One of the following 7th characters is to be assigned to each code under category O35.  7th character 0 is for single gestations and multiple gestations where the fetus is unspecified.  7th characters 1 through 9 are for cases of multiple gestations to identify the fetus for which the code applies. The appropriate code from category O30, Multiple gestation, must also be assigned when assigning a code from category O35 that has a 7th character of 1 through 9."],"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":[]}}