ICD-10 Code K11.23 – Chronic sialoadenitis (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code K11.23 – Chronic sialoadenitis
What it is
Chronic sialoadenitis is long-term inflammation of a salivary gland, usually involving repeated or persistent swelling and irritation. Use this code when the record specifically identifies a chronic inflammatory process of a salivary gland.
Clinical signs
Clinical features vary; refer to documentation. Commonly recorded findings include recurrent gland enlargement, tenderness, and discomfort that may worsen with eating if duct obstruction is present.
When to use this code
Use K11.23 when the provider documents chronic sialoadenitis as the diagnosis, whether in the parotid, submandibular, or another salivary gland. It is appropriate for persistent or recurrent inflammation that is not described as acute. If the note only says “salivary gland swelling” or another nonspecific condition, check documentation before assigning this code.
Do not use for
Do not use this code for acute sialadenitis, salivary gland stones, or nonspecific mouth dryness without documented chronic inflammation. Check documentation if the condition is better described by another salivary gland disorder.
Coding tip
Confirm that “chronic” is explicitly documented and that the affected gland is part of the salivary system.