ICD-10 Code K11.20 – Sialoadenitis, unspecified (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code K11.20 – Sialoadenitis, unspecified
What it is
K11.20 identifies inflammation of a salivary gland when the specific gland or cause is not documented. Use it for nonspecific sialoadenitis, including cases where the record only states salivary gland inflammation.
Clinical signs
Clinical features vary; refer to documentation. Common findings may include salivary gland swelling, tenderness, pain with eating, and reduced saliva flow, but you should code only what is documented.
When to use this code
Use this code when the provider documents sialoadenitis without naming the affected gland or a more specific type. It also fits encounters where the chart confirms salivary gland inflammation but details are incomplete. If another salivary disorder is documented more specifically, choose that code instead.
Do not use for
Do not use this code for sialolithiasis, salivary gland abscess, or parotitis when a more specific diagnosis is documented. Check documentation if the record describes obstruction, infection, or a named gland.
Coding tip
Query for the involved gland and underlying cause before assigning K11.20.