ICD-10 Code K11.1 – Hypertrophy of salivary gland (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code K11.1 – Hypertrophy of salivary gland
What it is
K11.1 identifies abnormal enlargement of one or more salivary glands. Use it when the record documents gland hypertrophy without a more specific cause or diagnosis.
Clinical signs
Clinical features vary; refer to documentation. Typical findings may include visible or palpable gland enlargement, facial fullness, or swelling near the jaw or under the tongue.
When to use this code
Use K11.1 when the provider documents hypertrophy of the salivary gland and does not identify infection, stone, tumor, or another specific disorder. It may also fit when enlargement is described as chronic or noninflammatory and no alternate diagnosis is recorded.
Do not use for
Do not use this code for salivary gland swelling due to sialadenitis, sialolithiasis, neoplasm, or trauma. Check documentation if the note names a more specific salivary gland condition.
Coding tip
Code the documented cause first when the enlarged gland is secondary to another condition.