ICD-10-CM > A00-B99 > A15-A19 > A18 > A18.4 A18.4 Tuberculosis of skin and subcutaneous tissue Billable/Specific Copy Code Copy Description Applicable To Erythema induratum, tuberculousLupus exedensLupus vulgaris NOSLupus vulgaris of eyelidScrofulodermaTuberculosis of external ear Type 2 Excludes lupus erythematosus (L93.-)systemic lupus erythematosus (M32.-)