ICD-10 Code for Stomatitis

The default ICD-10-CM 2027 code for stomatitis (denture) (ulcerative) is K12.1 – Other forms of stomatitis. More specific codes depend on the details documented, as listed in the official index (16 codes, 16 billable).

Main code: K12.1 – Other forms of stomatitis
Billable: Yes

Index entries for Stomatitis

angular – K13.0
- due to dietary or vitamin deficiency – E53.0
aphthous – K12.0
bovine – B08.61
candidal – B37.0
catarrhal – K12.1
diphtheritic – A36.89
due to
- dietary deficiency – E53.0
- thrush – B37.0
- vitamin deficiency
  - B group NEC – E53.9
  - B2 (riboflavin) – E53.0
epidemic – B08.8
epizootic – B08.8
follicular – K12.1
gangrenous – A69.0
Geotrichum – B48.3
herpesviral, herpetic – B00.2
herpetiformis – K12.0
malignant – K12.1
membranous acute – K12.1
monilial – B37.0
mycotic – B37.0
necrotizing ulcerative – A69.0
parasitic – B37.0
septic – K12.1
spirochetal – A69.1
suppurative (acute) – K12.2
ulceromembranous – A69.1
vesicular – K12.1
- with exanthem (enteroviral) – B08.4
- virus disease – A93.8
Vincent's – A69.1

How to choose the right code

Start with the main term, then pick the indented subterm that matches the documentation (type, cause, site, laterality, episode of care). Always confirm the code in the tabular list: follow its Excludes1/Excludes2, “code first” and “use additional code” notes, and add a 7th character where required.

Source: CDC/NCHS ICD-10-CM FY2027 alphabetic index.