ICD-10 Code K11.5 – Sialolithiasis (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code K11.5 – Sialolithiasis
What it is
Sialolithiasis means a salivary gland stone. The stone can block saliva flow, most often in the submandibular gland or its duct.
Clinical signs
Typical findings include intermittent swelling and pain in the affected salivary gland, often worse with meals. Clinical features vary; refer to documentation.
When to use this code
Use K11.5 when the record documents a salivary stone or calculus causing obstruction. It fits confirmed sialolithiasis, whether found on exam, imaging, or during a procedure note. If the provider only documents salivary gland pain or swelling without a stone, check documentation.
Do not use for
Do not use this code for nonspecific salivary gland enlargement, infection, or abscess without a documented stone. Do not assume sialolithiasis from symptoms alone.
Coding tip
Code K11.5 only when the stone is clearly documented; if the site is specified, capture it in the record.