{"code":"C31","type":"category","title":"Malignant neoplasm of accessory sinuses","codeAlso":[],"includes":["malignant neoplasm of middle ear"],"modern_v":"official26","codeFirst":[],"excludes1":["mesothelioma (C45.-)"],"excludes2":[],"isBillable":false,"sibling_codes":["C31.0","C31.1","C31.2","C31.3","C31.8","C31.9"],"inclusionTerms":[],"sibling_titles":{"code":"C31.9","title":"Malignant neoplasm of accessory sinus, unspecified","isBillable":true},"useAdditionalCode":[],"clinicalDefinition":"is a non-billable ICD-10-CM category code (C31). A more specific billable subcode must be selected for claims submission. Includes: malignant neoplasm of middle ear. Excludes1 (not coded here): mesothelioma (C45.-).","officialDefinition":"Malignant neoplasm of accessory sinuses is a non-billable ICD-10-CM category code (C31). A more specific billable subcode must be selected for claims submission. Includes: malignant neoplasm of middle ear. Excludes1 (not coded here): mesothelioma (C45.-).","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":[{"code":"C31.0","title":"Malignant neoplasm of maxillary sinus","description":"Malignant neoplasm of maxillary sinus is a billable ICD-10-CM diagnosis code (C31.0). Includes: malignant neoplasm of middle ear. Inclusion terms: Malignant neoplasm of antrum (Highmore) (maxillary). Excludes1 (not coded here): mesothelioma (C45.-).","isBillable":true,"slug":"c31.0-malignant-neoplasm-of-maxillary-sinus"},{"code":"C31.1","title":"Malignant neoplasm of ethmoidal sinus","description":"Malignant neoplasm of ethmoidal sinus is a billable ICD-10-CM diagnosis code (C31.1). Includes: malignant neoplasm of middle ear. Excludes1 (not coded here): mesothelioma (C45.-).","isBillable":true,"slug":"c31.1-malignant-neoplasm-of-ethmoidal-sinus"},{"code":"C31.2","title":"Malignant neoplasm of frontal sinus","description":"Malignant neoplasm of frontal sinus is a billable ICD-10-CM diagnosis code (C31.2). Includes: malignant neoplasm of middle ear. Excludes1 (not coded here): mesothelioma (C45.-).","isBillable":true,"slug":"c31.2-malignant-neoplasm-of-frontal-sinus"},{"code":"C31.3","title":"Malignant neoplasm of sphenoid sinus","description":"Malignant neoplasm of sphenoid sinus is a billable ICD-10-CM diagnosis code (C31.3). Includes: malignant neoplasm of middle ear. Excludes1 (not coded here): mesothelioma (C45.-).","isBillable":true,"slug":"c31.3-malignant-neoplasm-of-sphenoid-sinus"},{"code":"C31.8","title":"Malignant neoplasm of overlapping sites of accessory sinuses","description":"Malignant neoplasm of overlapping sites of accessory sinuses is a billable ICD-10-CM diagnosis code (C31.8). Includes: malignant neoplasm of middle ear. Excludes1 (not coded here): mesothelioma (C45.-).","isBillable":true,"slug":"c31.8-malignant-neoplasm-of-overlapping-sites-of-accessory-sinuses"},{"code":"C31.9","title":"Malignant neoplasm of accessory sinus, unspecified","description":"Malignant neoplasm of accessory sinus, unspecified is a billable ICD-10-CM diagnosis code (C31.9). Includes: malignant neoplasm of middle ear. Excludes1 (not coded here): mesothelioma (C45.-).","isBillable":true,"slug":"c31.9-malignant-neoplasm-of-accessory-sinus-unspecified"}],"hierarchy":[],"relatedCodes":[],"relevantCPTCodes":[],"documentationTips":[],"caseStudies":[],"description":"","overview":""}