{"code":"X31.XXXD","type":"code","title":"Exposure to excessive natural cold, subsequent encounter","codeAlso":[],"includes":[],"modern_v":"official26","codeFirst":[],"excludes1":["cold of man-made origin (W93.-)","contact with or inhalation of dry ice (W93.-)","contact with or inhalation of liquefied gas (W93.-)"],"excludes2":[],"isBillable":true,"fyEffectivity":{"fy2026":true,"fy2027":true,"billableFy2026":true,"billableFy2027":true},"sibling_codes":["X31","X31.XXXA","X31.XXXD","X31.XXXS"],"inclusionTerms":["Excessive cold as the cause of chilblains NOS","Excessive cold as the cause of immersion foot or hand","Exposure to cold NOS","Exposure to weather conditions"],"sibling_titles":{"code":"X31S","title":"Exposure to excessive natural cold, sequela","isBillable":true},"useAdditionalCode":[],"clinicalDefinition":"Exposure to excessive natural cold, subsequent encounter is a billable ICD-10-CM diagnosis code (X31D). Inclusion terms: Excessive cold as the cause of chilblains NOS; Excessive cold as the cause of immersion foot or hand; Exposure to cold NOS; Exposure to weather conditions. Excludes1 (not coded here): cold of man-made origin (W93.-); contact with or inhalation of dry ice (W93.-); contact with or inhalation of liquefied gas (W93.-). 7th character: The appropriate 7th character is to be added to code X31.","officialDefinition":"Exposure to excessive natural cold, subsequent encounter is a billable ICD-10-CM diagnosis code (X31D). Inclusion terms: Excessive cold as the cause of chilblains NOS; Excessive cold as the cause of immersion foot or hand; Exposure to cold NOS; Exposure to weather conditions. Excludes1 (not coded here): cold of man-made origin (W93.-); contact with or inhalation of dry ice (W93.-); contact with or inhalation of liquefied gas (W93.-). 7th character: The appropriate 7th character is to be added to code X31.","seventhCharacterInstructions":["The appropriate 7th character is to be added to code X31"],"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":[]}}