CDT Code for Dental Chlorhexidine Irrigation

Gingival irrigation aims to cleanse plaque from the interdental (between teeth) and subgingival (under the gumline) regions of the mouth in order to prevent the colonization of harmful oral bacteria therefore lessening the severity of periodontal/ gum disease. This procedure is also used to deliver antibacterials to the subgingival areas (Chlorhexidine more commonly) to decrease bacterial load.

D4921- Gingival pocket irrigation with antibacterial agents per quadrant in patients with periodontitis or severe gingivitis to remove the colony of harmful bacteria.