K12.2

Cellulitis and abscess of mouth

Billable code

This code does not map to a risk-adjusting HCC in the loaded models.

Coding notes

Excludes 1 never coded together · Excludes 2 may co-exist

This code · K12.2
Excludes 2

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

Synonyms

Cellulitis of mouth (floor) Submandibular abscess

Inherited from K12Stomatitis and related lesions
Excludes 1

cancrum oris (A69.0) cheilitis (K13.0) gangrenous stomatitis (A69.0) herpesviral [herpes simplex] gingivostomatitis (B00.2) noma (A69.0)

Use additional

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)

Inherited from chapter 11Diseases of the digestive system
Excludes 2

certain conditions originating in the perinatal period (P04-P96) certain infectious and parasitic diseases (A00-B99) complications of pregnancy, childbirth and the puerperium (O00-O9A) congenital malformations, deformations and chromosomal abnormalities (Q00-Q99) endocrine, nutritional and metabolic diseases (E00-E88) injury, poisoning and certain other consequences of external causes (S00-T88) neoplasms (C00-D49) symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)

Official Guidelines for K12.2

FY 2026 ›
I.C.11Chapter-specific guidanceChapter 11: Diseases of the Digestive System (K00-K95)

Find K12.2 in the alphabetic index

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