{"code":"S99.9","type":"code","title":"Unspecified injury of ankle and foot","codeAlso":[],"includes":[],"modern_v":"official26","codeFirst":[],"excludes1":[],"excludes2":["burns and corrosions (T20-T32)","fracture of ankle and malleolus (S82.-)","frostbite (T33-T34)","insect bite or sting, venomous (T63.4)"],"isBillable":false,"fyEffectivity":{"fy2026":true,"fy2027":true,"billableFy2026":false,"billableFy2027":false},"inclusionTerms":[],"useAdditionalCode":[],"clinicalDefinition":"Unspecified injury of ankle and foot is a non-billable ICD-10-CM category code (S99.9). A more specific billable subcode must be selected for claims submission. Excludes2 (not included here): burns and corrosions (T20-T32); fracture of ankle and malleolus (S82.-); frostbite (T33-T34); insect bite or sting, venomous (T63.4). 7th character: The appropriate 7th character is to be added to each code from subcategory S99.9.","officialDefinition":"Unspecified injury of ankle and foot is a non-billable ICD-10-CM category code (S99.9). A more specific billable subcode must be selected for claims submission. Excludes2 (not included here): burns and corrosions (T20-T32); fracture of ankle and malleolus (S82.-); frostbite (T33-T34); insect bite or sting, venomous (T63.4). 7th character: The appropriate 7th character is to be added to each code from subcategory S99.9.","seventhCharacterInstructions":["The appropriate 7th character is to be added to each code from subcategory S99.9","A: initial encounter","D: subsequent encounter","S: sequela"],"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":""}