K11.21Billable
Acute sialoadenitis
- Chapter
- 11. Diseases of the digestive system
- Category
- K11
- Effective date
- October 1, 2026
Related codes in category K11
K11Diseases of salivary glandsK11.0Atrophy of salivary glandYesK11.1Hypertrophy of salivary glandYesK11.2SialoadenitisK11.20Sialoadenitis, unspecifiedYesK11.22Acute recurrent sialoadenitisYesK11.23Chronic sialoadenitisYesK11.3Abscess of salivary glandYesK11.4Fistula of salivary glandYesK11.5SialolithiasisYesK11.6Mucocele of salivary glandYesK11.7Disturbances of salivary secretionYes
Frequently asked questions
What is ICD-10 code K11.21?
K11.21 is an ICD-10-CM diagnosis code for Acute sialoadenitis.
Is K11.21 a billable code?
Yes. K11.21 is billable and specific enough to be used on a claim.
What ICD-10-CM chapter is K11.21 in?
K11.21 falls under Chapter 11: Diseases of the digestive system.
When did K11.21 become effective?
K11.21 has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.
What other codes are related to K11.21?
K11.21 belongs to category K11, which includes 12 other codes — see the related codes list on this page.
ICD-10-CM data maintained by CDC/CMS (public domain). Always verify codes with authoritative sources before making coding or billing decisions.