{"code":"L04.0","type":"code","title":"Acute lymphadenitis of face, head and neck","codeAlso":[],"includes":["abscess (acute) of lymph nodes, except mesenteric","acute lymphadenitis, except mesenteric"],"modern_v":"official26","codeFirst":[],"excludes1":["chronic or subacute lymphadenitis, except mesenteric (I88.1)","enlarged lymph nodes (R59.-)","human immunodeficiency virus [HIV] disease resulting in generalized lymphadenopathy (B20)","lymphadenitis NOS (I88.9)","nonspecific mesenteric lymphadenitis (I88.0)"],"excludes2":["hordeolum (H00.0)","infective dermatitis (L30.3)","local infections of skin classified in Chapter 1","lupus panniculitis (L93.2)","panniculitis NOS (M79.3)","panniculitis of neck and back (M54.0-)","Perlèche NOS (K13.0)","Perlèche due to candidiasis (B37.0)","Perlèche due to riboflavin deficiency (E53.0)","pyogenic granuloma (L98.0)","relapsing panniculitis [Weber-Christian] (M35.6)","viral warts (B07.-)","zoster (B02.-)"],"isBillable":true,"fyEffectivity":{"fy2026":true,"fy2027":true},"sibling_codes":["L04","L04.1","L04.2","L04.3","L04.8","L04.9"],"inclusionTerms":[],"sibling_titles":{"code":"L04.9","title":"Acute lymphadenitis, unspecified","isBillable":true},"useAdditionalCode":["code (B95-B97) to identify infectious agent."],"clinicalDefinition":"Acute lymphadenitis of face, head and neck is a billable ICD-10-CM diagnosis code (L04.0). Includes: abscess (acute) of lymph nodes, except mesenteric; acute lymphadenitis, except mesenteric. Excludes1 (not coded here): chronic or subacute lymphadenitis, except mesenteric (I88.1); enlarged lymph nodes (R59.-); human immunodeficiency virus [HIV] disease resulting in generalized lymphadenopathy (B20); lymphadenitis NOS (I88.9); nonspecific mesenteric lymphadenitis (I88.0).","officialDefinition":"Acute lymphadenitis of face, head and neck is a billable ICD-10-CM diagnosis code (L04.0). Includes: abscess (acute) of lymph nodes, except mesenteric; acute lymphadenitis, except mesenteric. Excludes1 (not coded here): chronic or subacute lymphadenitis, except mesenteric (I88.1); enlarged lymph nodes (R59.-); human immunodeficiency virus [HIV] disease resulting in generalized lymphadenopathy (B20); lymphadenitis NOS (I88.9); nonspecific mesenteric lymphadenitis (I88.0). Excludes2 (not included here): hordeolum (H00.0); infective dermatitis (L30.3); local infections of skin classified in Chapter 1; lupus panniculitis (L93.2); panniculitis NOS (M79.3); panniculitis of neck and back (M54.0-); Perlèche NOS (K13.0); Perlèche due to candidiasis (B37.0); Perlèche due to riboflavin deficiency (E53.0); pyogenic granuloma (L98.0); relapsing panniculitis [Weber-Christian] (M35.6); viral warts (B07.-); zoster (B02.-). 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":""}