ICD-10-CM > J00-J99 > J30-J39 > J36 J36 Peritonsillar abscess Billable/Specific Copy Code Copy Description Includes abscess of tonsilperitonsillar cellulitisquinsy Use Additional code (B95-B97) to identify infectious agent. Type 1 Excludes acute tonsillitis (J03.-)chronic tonsillitis (J35.0)retropharyngeal abscess (J39.0)tonsillitis NOS (J03.9-)