1. NO EPIDERMAL INVOLVEMENT
   1. Perivascular only
   2. Perivascular and Interstitial
   
   
2. INTERFACE
   1. Vacuolar
   2. Lichenoid
   
   
3. BALLOONING
   1. Ballooning only
   2. Interface
   3. Spongiosis
   
   
4. SPONGIOTIC
   1. Spongiotic only
   2. Psoriasiform
   3. Lichenoid
   4. Psoriasiform Lichenoid
   
   
5. PSORIASIFORM
   1. Psoriasiform only
   2. Lichenoid