2007 ICD-9-CM Procedure 27.0 Drainage of face and floor of mouth 27.0 is a specific code that can be used to specify a procedure 27.0 contains 27 index entries View the full Volume 3 27.* hierarchy 27.0 also known as: Drainage of: facial region (abscess) fascial compartment of face Ludwig's angina 27.0 excludes: drainage of thyroglossal tract (06.09) Index entries containing 27.0: Cheilotomy 27.0 Drainage buccal space 27.0 facial region 27.0 fascial compartments, head and neck 27.0 infratemporal fossa 27.0 Ludwig's angina 27.0 mouth floor 27.0 parotid space 27.0 pharyngeal space, lateral 27.0 postzygomatic space 27.0 pterygopalatine fossa 27.0 sublingual space 27.0 submental space 27.0 temporal pouches 27.0 Incision (and drainage) abscess -- see also Incision, by site lip 27.0 buccal space 27.0 fascial compartments, head and neck 27.0 infratemporal fossa 27.0 mouth NEC 27.92 floor 27.0 parotid space 27.0 pharynx, pharyngeal (bursa) 29.0 space, lateral 27.0 postzygomatic space 27.0 pterygopalatine fossa 27.0 sublingual space 27.0 submandibular space 27.0 submental space 27.0 temporal pouches 27.0