{"code":"O86.4","type":"code","title":"Pyrexia of unknown origin following delivery","codeAlso":[],"includes":[],"modern_v":"official26","codeFirst":[],"excludes1":[],"excludes2":["pyrexia during labor (O75.2)","infection during labor (O75.3)","obstetrical tetanus (A34)","mental and behavioral disorders associated with the puerperium (F53.-)","puerperal osteomalacia (M83.0)"],"isBillable":true,"fyEffectivity":{"fy2026":true,"fy2027":true},"sibling_codes":["O86","O86.0","O86.01","O86.02","O86.03","O86.04","O86.09","O86.1","O86.11","O86.12","O86.13","O86.19","O86.2","O86.20","O86.21","O86.22","O86.29","O86.8","O86.81","O86.89"],"inclusionTerms":["Puerperal infection NOS following delivery","Puerperal pyrexia NOS following delivery"],"sibling_titles":{"code":"O86.89","title":"Other specified puerperal infections","isBillable":true},"useAdditionalCode":["code (B95-B97), to identify infectious agent"],"clinicalDefinition":"Pyrexia of unknown origin following delivery is a billable ICD-10-CM diagnosis code (O86.4). Inclusion terms: Puerperal infection NOS following delivery; Puerperal pyrexia NOS following delivery. Excludes2 (not included here): pyrexia during labor (O75.2); infection during labor (O75.3); obstetrical tetanus (A34); mental and behavioral disorders associated with the puerperium (F53.-); puerperal osteomalacia (M83.0). Use additional code: code (B95-B97), to identify infectious agent.","officialDefinition":"Pyrexia of unknown origin following delivery is a billable ICD-10-CM diagnosis code (O86.4). Inclusion terms: Puerperal infection NOS following delivery; Puerperal pyrexia NOS following delivery. Excludes2 (not included here): pyrexia during labor (O75.2); infection during labor (O75.3); obstetrical tetanus (A34); mental and behavioral disorders associated with the puerperium (F53.-); puerperal osteomalacia (M83.0). Use additional code: code (B95-B97), to identify infectious agent.","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":""}