ICD-10-CM 2027
ICD-10 code for sublingual gland fistula
From the official ICD-10-CM alphabetic index entry “Fistula (cutaneous) › sublingual gland”. Page updated September 29, 2026.
About coding sublingual gland fistula
The ICD-10-CM code for sublingual gland fistula is K11.4 (Fistula of salivary gland).
Within K11 (diseases of salivary glands), K11.4 is specifically for fistula of salivary gland. Related codes cover atrophy of salivary gland (K11.0), hypertrophy of salivary gland (K11.1), sialoadenitis (K11.2), abscess of salivary gland (K11.3), Sialolithiasis (K11.5), mucocele of salivary gland (K11.6), disturbances of salivary secretion (K11.7), other diseases of salivary glands (K11.8) and 1 more.
Don't report K11.4 together with the conditions in its Excludes1 note: congenital fistula of salivary gland (Q38.4).
Use an additional code to identify: alcohol abuse and dependence (F10.-), exposure to environmental tobacco smoke (Z77.22), exposure to tobacco smoke in the perinatal period (P96.81), history of tobacco dependence (Z87.891), occupational exposure to environmental tobacco smoke (Z57.31) and 2 more.
Don't confuse with (Excludes1 for K11.4)
- congenital fistula of salivary gland (Q38.4)
Common questions about sublingual gland fistula ICD-10 codes
What is the ICD-10 code for sublingual gland fistula?
- K11.4 — Fistula of salivary gland.
Is K11.4 billable?
- Yes. K11.4 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can K11.4 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict K11.4 as a principal diagnosis.
Is K11.4 a CC or MCC?
- K11.4 is a CC (complication or comorbidity) under MS-DRG v44.0, unless excluded by the principal diagnosis.