K12.2 – Cellulitis and abscess of mouth
ICD-10-CM 2027 diagnosis code · Diseases of oral cavity and salivary glands
ICD-10-CM code
K12.2
- Code
K12.2(claims format:K122)- Description
- Cellulitis and abscess of mouth
- Billable
- Yes – valid for HIPAA-covered transactions
- Valid for
- Dates of service October 1, 2026 – September 30, 2027 (FY2027)
- Chapter
- 11. Diseases of the digestive system (K00-K95)
- Block
- K00-K14 Diseases of oral cavity and salivary glands
- Parent codes
- K12
Notes for K12.2
Applicable to:
- Cellulitis of mouth (floor)
- Submandibular abscess
Notes inherited from parent codes
Instructional notes at a category or block level apply to every code below it.
K12 – Stomatitis and related lesions
Excludes1 (not coded here):
Use additional code:
- code to identify:
- alcohol abuse and dependence (F10.-)
- exposure to environmental tobacco smoke (Z77.22)
- exposure to tobacco smoke in the perinatal period (P96.81)
- history of tobacco dependence (Z87.891)
- occupational exposure to environmental tobacco smoke (Z57.31)
- tobacco dependence (F17.-)
- tobacco use (Z72.0)
Index terms for K12.2
Entries in the ICD-10-CM alphabetic index that lead to this code:
- Uvulitis
- Staphylitis
- Fistula, oral
- Abscess, mouth
- Abscess, uvula
- Fistula, mouth
- Abscess, palate
- Furuncle, mouth
- Angina, Ludovici
- Angina, Ludwig's
- Cellulitis, mouth
- Cellulitis, palate
- Abscess, sublingual
- Abscess, cheek, inner
- Fistula, buccal cavity
- Abscess, submandibular
- Abscess, buccal cavity
- Furuncle, submandibular
- Stomatitis, suppurative
- Cellulitis, submaxillary
- Fistula, parotid, region
- Abscess, parotid, region
- Cellulitis, submandibular
- Ludwig's angina or disease
- Disease, diseased, Ludwig's
Related codes in K12
Frequently asked questions
What is ICD-10 code K12.2?
K12.2 is the ICD-10-CM code for cellulitis and abscess of mouth, in the block K00-K14 (Diseases of oral cavity and salivary glands).
Is K12.2 a billable code?
Yes. K12.2 is a billable/specific code that can be used to indicate a diagnosis for reimbursement purposes.
What category does K12.2 belong to?
It belongs to category K12 – Stomatitis and related lesions.
Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.