K12.2

ICD-10Billable

Cellulitis and abscess of mouth

Official ICD-10-CM descriptor (FY2026)

Cellulitis and abscess of mouth

K12.2 is valid for submission on a claim — CMS flags it as a billable, specific code.

Inclusion terms

  • Cellulitis of mouth (floor)
  • Submandibular abscess

Excludes2

Not included here. The condition is not part of this code, but a patient may have both, and both codes may be reported together.

  • abscess of salivary gland (K11.3)
  • abscess of tongue (K14.0)
  • periapical abscess (K04.6-K04.7)
  • periodontal abscess (K05.21)
  • peritonsillar abscess (J36)

Related codes in K12

Where this code sits

Parent code
K12

Krasyn AI Coder

Get code suggestions automatically as you type notes. Free for 50 analyses.

Install for Chrome — free

Source

ICD-10-CM FY2026. Centers for Medicare & Medicaid Services (CMS) / National Center for Health Statistics (NCHS), “2026 ICD-10-CM Code Descriptions in Tabular Order” (icd10cm_order_2026.txt). Download the original file from cms.gov. Public domain (US Government work). Descriptors, billable flags and instructional notes on this page are reproduced from that file without modification. Krasyn adds no clinical guidance.

Get codes automatically as you write notes. Krasyn AI Coder for Chrome — free for 50 analyses.Install free →