ICD-10-CM Codes
K00-K95 Diseases of the digestive system
K00-K14 Diseases of oral cavity and salivary glands
K12- Stomatitis and related lesions
2021 ICD-10-CM Diagnosis Code K12.2

2021 ICD-10-CM Diagnosis Code K12.2

Cellulitis and abscess of mouth

2016

2017

2018

2019

2020

2021

Billable/Specific Code

K12.2 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
The 2021 edition of ICD-10-CM K12.2 became effective on October 1, 2020.
This is the American ICD-10-CM version of K12.2 - other international versions of ICD-10 K12.2 may differ.

Applicable To

Cellulitis of mouth (floor)
Submandibular abscess

Type 2 Excludes

Type 2 Excludes Help

A type 2 excludes note represents "not included here". A type 2 excludes note indicates that the condition excluded is not part of the condition it is excluded from but a patient may have both conditions at the same time. When a type 2 excludes note appears under a code it is acceptable to use both the code (K12.2) and the excluded code together.

abscess of salivary gland (
ICD-10-CM Diagnosis Code K11.3
Abscess of salivary gland
K11.3
)
abscess of tongue (
ICD-10-CM Diagnosis Code K14.0
Glossitis
Applicable To
- Abscess of tongue
- Ulceration (traumatic) of tongue
Type 1 Excludes
- atrophic glossitis (K14.4)
K14.0
)
periapical abscess (
ICD-10-CM Diagnosis Code K04.6
Periapical abscess with sinus
Applicable To
- Dental abscess with sinus
- Dentoalveolar abscess with sinus
K04.6-
ICD-10-CM Diagnosis Code K04.7
Periapical abscess without sinus
Applicable To
- Dental abscess without sinus
- Dentoalveolar abscess without sinus
K04.7
)
periodontal abscess (
ICD-10-CM Diagnosis Code K05.21
Aggressive periodontitis, localized
Applicable To
- Periodontal abscess
K05.21
)
peritonsillar abscess (
ICD-10-CM Diagnosis Code J36
Peritonsillar abscess
Includes
- abscess of tonsil
- peritonsillar cellulitis
- quinsy
Type 1 Excludes
- acute tonsillitis (J03.-)
- chronic tonsillitis (J35.0)
- retropharyngeal abscess (J39.0)
- tonsillitis NOS (J03.9-)
Use Additional
- code (B95-B97) to identify infectious agent.
J36
)

The following code(s) above K12.2 contain annotation back-references

Annotation Back-References

In this context, annotation back-references refer to codes that contain:

Applicable To annotations, or
Code Also annotations, or
Code First annotations, or
Excludes1 annotations, or
Excludes2 annotations, or
Includes annotations, or
Note annotations, or
Use Additional annotations

that may be applicable to K12.2:

K00-K95
2021 ICD-10-CM Range K00-K95
Diseases of the digestive system
Type 2 Excludes
- 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)
Diseases of the digestive system
K12
ICD-10-CM Diagnosis Code K12
Stomatitis and related lesions
Type 1 Excludes
- 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)
Stomatitis and related lesions

Approximate Synonyms

Abscess of buccal cavity (cheek)
Abscess of mouth
Abscess of oral tissue
Abscess of sublingual space
Abscess of submandibular region
Cellulitis of floor of mouth
Cellulitis of oral soft tissues
Cellulitis of submandibular region
Inflammation of uvula
Ludwig's angina
Ludwigs angina
Sublingual region abscess
Submandibular region abscess
Uvulitis

ICD-10-CM K12.2 is grouped within Diagnostic Related Group(s) (MS-DRG v38.0):

011 Tracheostomy for face, mouth and neck diagnoses or laryngectomy with mcc
012 Tracheostomy for face, mouth and neck diagnoses or laryngectomy with cc
013 Tracheostomy for face, mouth and neck diagnoses or laryngectomy without cc/mcc
157 Dental and oral diseases with mcc
158 Dental and oral diseases with cc
159 Dental and oral diseases without cc/mcc

Convert K12.2 to ICD-9-CM

Code History

2016 (effective 10/1/2015): New code (first year of non-draft ICD-10-CM)
2017 (effective 10/1/2016): No change
2018 (effective 10/1/2017): No change
2019 (effective 10/1/2018): No change
2020 (effective 10/1/2019): No change
2021 (effective 10/1/2020): No change

Code annotations containing back-references to K12.2:

Type 2 Excludes: L02.0
, L02.0
, L03
, L03.211

ICD-10-CM Diagnosis Code L02.0
Cutaneous abscess, furuncle and carbuncle of face
Type 2 Excludes
- abscess of ear, external (H60.0)
- abscess of eyelid (H00.0)
- abscess of head [any part, except face] (L02.8)
- abscess of lacrimal gland (H04.0)
- abscess of lacrimal passages (H04.3)
- abscess of mouth (K12.2)
- abscess of nose (J34.0)
- abscess of orbit (H05.0)
- submandibular abscess (K12.2)
ICD-10-CM Diagnosis Code L02.0
Cutaneous abscess, furuncle and carbuncle of face
Type 2 Excludes
- abscess of ear, external (H60.0)
- abscess of eyelid (H00.0)
- abscess of head [any part, except face] (L02.8)
- abscess of lacrimal gland (H04.0)
- abscess of lacrimal passages (H04.3)
- abscess of mouth (K12.2)
- abscess of nose (J34.0)
- abscess of orbit (H05.0)
- submandibular abscess (K12.2)
ICD-10-CM Diagnosis Code L03
Cellulitis and acute lymphangitis
Type 2 Excludes
- cellulitis of anal and rectal region (K61.-)
- cellulitis of external auditory canal (H60.1)
- cellulitis of eyelid (H00.0)
- cellulitis of female external genital organs (N76.4)
- cellulitis of lacrimal apparatus (H04.3)
- cellulitis of male external genital organs (N48.2, N49.-)
- cellulitis of mouth (K12.2)
- cellulitis of nose (J34.0)
- eosinophilic cellulitis [Wells] (L98.3)
- febrile neutrophilic dermatosis [Sweet] (L98.2)
- lymphangitis (chronic) (subacute) (I89.1)
ICD-10-CM Diagnosis Code L03.211
Cellulitis of face
Type 2 Excludes
- abscess of orbit (H05.01-)
- cellulitis of ear (H60.1-)
- cellulitis of eyelid (H00.0-)
- cellulitis of head (L03.81)
- cellulitis of lacrimal apparatus (H04.3)
- cellulitis of lip (K13.0)
- cellulitis of mouth (K12.2)
- cellulitis of nose (internal) (J34.0)
- cellulitis of orbit (H05.01-)
- cellulitis of scalp (L03.81)

Diagnosis Index entries containing back-references to K12.2:

Abscess (connective tissue) (embolic) (fistulous) (infective) (metastatic) (multiple) (pernicious) (pyogenic) (septic) L02.91
ICD-10-CM Diagnosis Code L02.91
Cutaneous abscess, unspecified
- cheek (external) L02.01
  ICD-10-CM Diagnosis Code L02.01
  Cutaneous abscess of face
  2016 2017 2018 2019 2020 2021 Billable/Specific Code
  - inner K12.2
- palate (soft) K12.2
- parotid (duct) (gland) K11.3
  ICD-10-CM Diagnosis Code K11.3
  Abscess of salivary gland
  2016 2017 2018 2019 2020 2021 Billable/Specific Code
  - region K12.2
- sublingual K12.2
- submandibular (region) (space) (triangle) K12.2
- buccal cavity K12.2
- mouth K12.2 (floor)
- uvula K12.2
Angina (attack) (cardiac) (chest) (heart) (pectoris) (syndrome) (vasomotor) I20.9
ICD-10-CM Diagnosis Code I20.9
Angina pectoris, unspecified
Applicable To
Angina NOS
Anginal syndrome
Cardiac angina
Ischemic chest pain
- Ludovici K12.2
- Ludwig's K12.2
Cellulitis (diffuse) (phlegmonous) (septic) (suppurative) L03.90
ICD-10-CM Diagnosis Code L03.90
Cellulitis, unspecified
- cheek (external) L03.211
  ICD-10-CM Diagnosis Code L03.211
  Cellulitis of face
  2016 2017 2018 2019 2020 2021 Billable/Specific Code
  Type 2 Excludes
  abscess of orbit (H05.01-)
  cellulitis of ear (H60.1-)
  cellulitis of eyelid (H00.0-)
  cellulitis of head (L03.81)
  cellulitis of lacrimal apparatus (H04.3)
  cellulitis of lip (K13.0)
  cellulitis of mouth (K12.2)
  cellulitis of nose (internal) (J34.0)
  cellulitis of orbit (H05.01-)
  cellulitis of scalp (L03.81)
  - internal K12.2
- submandibular (region) (space) (triangle) K12.2
- submaxillary (region) K12.2
- mouth K12.2 (floor)
- palate K12.2 (soft)
Disease, diseased - see also Syndrome
- Ludwig's K12.2 (submaxillary cellulitis)
Fistula (cutaneous) L98.8
ICD-10-CM Diagnosis Code L98.8
Other specified disorders of the skin and subcutaneous tissue
- oral (cutaneous) K12.2
- parotid (gland) K11.4
  ICD-10-CM Diagnosis Code K11.4
  Fistula of salivary gland
  2016 2017 2018 2019 2020 2021 Billable/Specific Code
  Type 1 Excludes
  congenital fistula of salivary gland (Q38.4)
  - region K12.2
- submaxillary (gland) K11.4
  ICD-10-CM Diagnosis Code K11.4
  Fistula of salivary gland
  2016 2017 2018 2019 2020 2021 Billable/Specific Code
  Type 1 Excludes
  congenital fistula of salivary gland (Q38.4)
  - region K12.2
- buccal cavity K12.2 (infective)
- mouth K12.2
Furuncle L02.92
ICD-10-CM Diagnosis Code L02.92
Furuncle, unspecified
Applicable To
Boil NOS
Furunculosis NOS
- mouth K12.2
- submandibular K12.2
Gangrene, gangrenous (connective tissue) (dropsical) (dry) (moist) (skin) (ulcer) I96
- see also Necrosis
ICD-10-CM Diagnosis Code I96
Gangrene, not elsewhere classified
Applicable To
Gangrenous cellulitis
Type 1 Excludes
gangrene in atherosclerosis of native arteries of the extremities (I70.26)
gangrene in hernia (K40.1, K40.4, K41.1, K41.4, K42.1, K43.1-, K44.1, K45.1, K46.1)
gangrene in other peripheral vascular diseases (I73.-)
gangrene of certain specified sites - see Alphabetical Index
gas gangrene (A48.0)
pyoderma gangrenosum (L88)
Type 2 Excludes
gangrene in diabetes mellitus (E08-E13 with .52)
- uvulitis K12.2
Ludwig's angina or disease K12.2
Staphylitis K12.2 (acute) (catarrhal) (chronic) (gangrenous) (membranous) (suppurative) (ulcerative)
Stomatitis (denture) (ulcerative) K12.1
ICD-10-CM Diagnosis Code K12.1
Other forms of stomatitis
Applicable To
Stomatitis NOS
Denture stomatitis
Ulcerative stomatitis
Vesicular stomatitis
Type 1 Excludes
acute necrotizing ulcerative stomatitis (A69.1)
Vincent's stomatitis (A69.1)
- suppurative K12.2 (acute)
Uvulitis K12.2 (acute) (catarrhal) (chronic) (membranous) (suppurative) (ulcerative)

ICD-10-CM Codes Adjacent To K12.2

K11.3 Abscess of salivary gland

K11.4 Fistula of salivary gland

K11.5 Sialolithiasis

K11.6 Mucocele of salivary gland

K11.7 Disturbances of salivary secretion

K11.8 Other diseases of salivary glands

K11.9 Disease of salivary gland, unspecified

K12 Stomatitis and related lesions

K12.0 Recurrent oral aphthae

K12.1 Other forms of stomatitis

K12.2 Cellulitis and abscess of mouth

K12.3 Oral mucositis (ulcerative)

K12.30 …… unspecified

K12.31 …… due to antineoplastic therapy

K12.32 …… due to other drugs

K12.33 …… due to radiation

K12.39 Other oral mucositis (ulcerative)

K13 Other diseases of lip and oral mucosa

K13.0 Diseases of lips

K13.1 Cheek and lip biting

K13.2 Leukoplakia and other disturbances of oral epithelium, including tongue

Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.

2021 ICD-10-CM Diagnosis Code K12.2

Cellulitis and abscess of mouth

Abscess of salivary gland

Glossitis

Periapical abscess with sinus

Periapical abscess without sinus

Aggressive periodontitis, localized

Peritonsillar abscess

Diseases of the digestive system

Stomatitis and related lesions

Cutaneous abscess, furuncle and carbuncle of face

Cutaneous abscess, furuncle and carbuncle of face

Cellulitis and acute lymphangitis

Cellulitis of face

Cutaneous abscess, unspecified

Cutaneous abscess of face

Abscess of salivary gland

Angina pectoris, unspecified

Cellulitis, unspecified

Cellulitis of face

Other specified disorders of the skin and subcutaneous tissue

Fistula of salivary gland

Fistula of salivary gland

Furuncle, unspecified

Gangrene, not elsewhere classified

Other forms of stomatitis