K12.2
Billable codeCellulitis and abscess of mouth
The ICD-10 code for cellulitis and abscess of mouth is K12.2.
Clinical notes
Excludes2 (not included here)
An Excludes2 note means the excluded condition is not part of this one, but a patient can have both at the same time — in that case both codes may be reported together.
Also known as
Alternate wording, synonyms, or specific conditions that fall under this code, listed to help confirm you've picked the right one.
- Cellulitis of mouth (floor)
- Submandibular abscess
Documentation support
General coding-documentation guidance — not a substitute for payer-specific requirements or professional coding judgment.
- •As a general rule, code to the highest level of specificity supported by the documentation in the medical record.
Related codes in this category
- K12.0Recurrent oral aphthae
- K12.1Other forms of stomatitis
- K12.3Oral mucositis (ulcerative)non-billable header
- K12.2Cellulitis and abscess of mouth
ICD-9-CM equivalent
Informational only — GEM mappings are approximate, not guaranteed one-to-one equivalents. Verify before use in billing.
- 52800Approximate match
- 5283Approximate match
- 6820Approximate match
Associated MS-DRGs
K12.2 can serve as the principal diagnosis for these Medicare Severity Diagnosis-Related Groups.
Informational only — actual DRG assignment also depends on procedures, complications/comorbidities (CC/MCC), discharge status, and payer-specific rules not reflected here.
- DRG 011Tracheostomy for Face, Mouth and Neck Diagnoses or Laryngectomy with MCC
- DRG 012Tracheostomy for Face, Mouth and Neck Diagnoses or Laryngectomy with CC
- DRG 013Tracheostomy for Face, Mouth and Neck Diagnoses or Laryngectomy without CC/MCC
- DRG 157Dental and Oral Diseases with MCC
- DRG 158Dental and Oral Diseases with CC
- DRG 159Dental and Oral Diseases without CC/MCC