K11.21
BillableAcute sialoadenitis
K11.21 is the ICD-10-CM code for Acute sialoadenitis. It is a billable, specific code valid for reimbursement.
K00-K95 Diseases of the digestive system
What this means — in plain language
MedlinePlus · NIHYour salivary glands are in your mouth. You have three pairs of major salivary glands and hundreds of small (minor) glands. They make saliva (spit) and empty it into your mouth through openings called ducts. Saliva makes your food moist, which helps you chew and swallow. It helps you digest your food. It also cleans your mouth and contains antibodies that can kill germs. Problems with salivary glands can cause them…
Read more about Salivary Gland Disorders at MedlinePlus ↗Source: U.S. National Library of Medicine (MedlinePlus). Informational only — not medical advice.
Excludes1 — not coded here
- •acute recurrent sialoadenitis (K11.22)
Frequently asked questions
- What is ICD-10 code K11.21?
- K11.21 is the ICD-10-CM code for "Acute sialoadenitis". It falls under K00-K95 Diseases of the digestive system.
- Is K11.21 a billable code?
- Yes — K11.21 is a billable, specific ICD-10-CM code valid for reimbursement.
- What is excluded from K11.21?
- Excludes1 (not coded here): acute recurrent sialoadenitis (K11.22).
Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.
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