{"code":"H00.01","type":"code","title":"Hordeolum externum","codeAlso":[],"includes":[],"modern_v":"official26","codeFirst":[],"excludes1":[],"excludes2":["open wound of eyelid (S01.1-)","superficial injury of eyelid (S00.1-, S00.2-)"],"isBillable":false,"fyEffectivity":{"fy2026":true,"fy2027":true,"billableFy2026":false,"billableFy2027":false},"inclusionTerms":["Hordeolum NOS","Stye"],"useAdditionalCode":[],"clinicalDefinition":"Hordeolum externum is a non-billable ICD-10-CM category code (H00.01). A more specific billable subcode must be selected for claims submission. Inclusion terms: Hordeolum NOS; Stye. Excludes2 (not included here): open wound of eyelid (S01.1-); superficial injury of eyelid (S00.1-, S00.2-).","officialDefinition":"Hordeolum externum is a non-billable ICD-10-CM category code (H00.01). A more specific billable subcode must be selected for claims submission. Inclusion terms: Hordeolum NOS; Stye. Excludes2 (not included here): open wound of eyelid (S01.1-); superficial injury of eyelid (S00.1-, S00.2-).","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":""}