dermatitis impetigo A pyoderma consisting of three forms of skin lesions having either a thick, adherent, recurrent, dirty yellow crust with an erythematous margin (common or superficial impetigo) or lessions which are superficial, thin-walled, and bullous as found in bullous impetigo. The lesions in bullous (staphylococcal) impetigo, which are always caused by S aureus, are superficial, thin-walled, and bullous. DOID:8504 ICD10CM:L01 ICD10CM:L01.0 ICD10CM:L01.00 ICD9CM:684 MSH:D007169 NCI:C99088 SNOMEDCT_US_2015_03_01:156319000 SNOMEDCT_US_2015_03_01:200710001 SNOMEDCT_US_2015_03_01:267836006 SNOMEDCT_US_2015_03_01:48277006 UMLS_CUI:C0021099 disease_ontology