ICD-10-CM 2027
ICD-10 code for gingivostomatitis
From the official ICD-10-CM alphabetic index entry “Gingivostomatitis”. Page updated September 29, 2026.
About coding gingivostomatitis
The ICD-10-CM code for gingivostomatitis is K05.10 (Chronic gingivitis, plaque induced). The official index lists 2 more specific codes, so check the documentation for details such as type, cause, site or severity before settling on K05.10.
Within K05.1 (chronic gingivitis), K05.10 is specifically for chronic gingivitis, plaque induced. Related codes cover non-plaque induced (K05.11).
Use an 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) and 2 more.
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
More specific gingivostomatitis codes (official index)
Common questions about gingivostomatitis ICD-10 codes
What is the ICD-10 code for gingivostomatitis?
- K05.10 — Chronic gingivitis, plaque induced. More specific codes apply when the documentation supports them: B00.2, A69.1.
What is the ICD-10 code for herpesviral gingivostomatitis?
- B00.2 — Herpesviral gingivostomatitis and pharyngotonsillitis.
What is the ICD-10 code for necrotizing ulcerative gingivostomatitis?
- A69.1 — Other Vincent's infections.
Is K05.10 billable?
- Yes. K05.10 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can K05.10 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict K05.10 as a principal diagnosis.
Is K05.10 a CC or MCC?
- No. K05.10 is neither a CC nor an MCC under MS-DRG v44.0.