Acute recurrent sialoadenitis

This code signifies an inflammatory condition of the salivary glands that presents as acute episodes recurring over time. It involves sudden onset of pain, swelling, and tenderness in one or more salivary glands, followed by resolution, only to recur at a later date. This is distinct from chronic, persistent inflammation.

Apply this code when documentation clearly indicates a patient experiencing repeated, distinct episodes of acute salivary gland inflammation. Supporting documentation should specify the acute nature of the current episode and a history of prior similar occurrences. This code is appropriate for both bacterial and non-bacterial causes of recurrent acute inflammation.

• Differentiate from chronic sialoadenitis (K11.20) which implies persistent, ongoing inflammation rather than discrete acute attacks.
• Specify the affected gland(s) if documented (e.g., parotid, submandibular) using more specific codes if available, though K11.22 is a general recurrent acute code.
• Code any underlying cause, such as sialolithiasis (K11.5), as a secondary diagnosis if present and contributing to the recurrent episodes.