{"code":"O31.8X13","type":"code","title":"Other complications specific to multiple gestation, first trimester, fetus 3","codeAlso":[],"includes":[],"modern_v":"official26","codeFirst":[],"excludes1":[],"excludes2":["delayed delivery of second twin, triplet, etc. (O63.2)","malpresentation of one fetus or more (O32.9)","placental transfusion syndromes (O43.0-)"],"isBillable":true,"fyEffectivity":{"fy2026":true,"fy2027":true,"billableFy2026":true,"billableFy2027":true},"sibling_codes":["O31","O31.0","O31.00","O31.00X0","O31.00X1","O31.00X2","O31.00X3","O31.00X4","O31.00X5","O31.00X9","O31.01","O31.01X0","O31.01X1","O31.01X2","O31.01X3","O31.01X4","O31.01X5","O31.01X9","O31.02","O31.02X0","O31.02X1","O31.02X2","O31.02X3","O31.02X4","O31.02X5","O31.02X9","O31.03","O31.03X0","O31.03X1","O31.03X2","O31.03X3","O31.03X4","O31.03X5","O31.03X9","O31.1","O31.10","O31.10X0","O31.10X1","O31.10X2","O31.10X3","O31.10X4","O31.10X5","O31.10X9","O31.11","O31.11X0","O31.11X1","O31.11X2","O31.11X3","O31.11X4","O31.11X5","O31.11X9","O31.12","O31.12X0","O31.12X1","O31.12X2","O31.12X3","O31.12X4","O31.12X5","O31.12X9","O31.13","O31.13X0","O31.13X1","O31.13X2","O31.13X3","O31.13X4","O31.13X5","O31.13X9","O31.2","O31.20","O31.20X0","O31.20X1","O31.20X2","O31.20X3","O31.20X4","O31.20X5","O31.20X9","O31.21","O31.21X0","O31.21X1","O31.21X2","O31.21X3","O31.21X4","O31.21X5","O31.21X9","O31.22","O31.22X0","O31.22X1","O31.22X2","O31.22X3","O31.22X4","O31.22X5","O31.22X9","O31.23","O31.23X0","O31.23X1","O31.23X2","O31.23X3","O31.23X4","O31.23X5","O31.23X9"],"inclusionTerms":[],"sibling_titles":{"code":"O31.23X9","title":"Continuing pregnancy after intrauterine death of one fetus or more, third trimester, other fetus","isBillable":true},"useAdditionalCode":[],"clinicalDefinition":"Other complications specific to multiple gestation, first trimester, fetus 3 is a billable ICD-10-CM diagnosis code (O31.8X13). Excludes2 (not included here): delayed delivery of second twin, triplet, etc. (O63.2); malpresentation of one fetus or more (O32.9); placental transfusion syndromes (O43.0-). 7th character: One of the following 7th characters is to be assigned to each code under category O31.","officialDefinition":"Other complications specific to multiple gestation, first trimester, fetus 3 is a billable ICD-10-CM diagnosis code (O31.8X13). Excludes2 (not included here): delayed delivery of second twin, triplet, etc. (O63.2); malpresentation of one fetus or more (O32.9); placental transfusion syndromes (O43.0-). 7th character: One of the following 7th characters is to be assigned to each code under category O31.  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 O31 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 O31.  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 O31 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":[]}}