2026 ICD-10-CM Diagnosis Code K11.6Mucocele of salivary gland

ICD-10-CM Codes›K00–K95›K00-K14›K11

ICD-10-CM K11.6
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

K11.6 is a billable ICD-10-CM diagnosis code for mucocele of salivary gland. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to MS-DRG 154 through 156. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Any dental condition including traumatic injury, Diseases of mouth; excluding dental, and Nontraumatic dental conditions.

Code Identity

ICD-10-CM Code
K11.6
Billable Status
Yes — Valid for Submission
Code Describes
Mucocele of salivary gland
Short Description
Mucocele of salivary gland
Same as the full description in the CMS dataset.
Parent Code
K11
Diseases of salivary glands

Code Classification

ChapterK00–K95Diseases of the digestive system
SectionK00-K14Diseases of oral cavity and salivary glands
CategoryK11Diseases of salivary glands
This CodeK11.6Mucocele of salivary gland

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Bilateral mass of parotid glands
  • Bilateral parotid glands cyst
  • Cyst of left parotid gland
  • Cyst of right parotid gland
  • Cyst of salivary gland
  • Extravasation cyst of minor salivary gland
  • Extravasation cyst of salivary gland
  • Mass of left parotid gland
  • Mass of right parotid gland
  • Mucocele of salivary gland
  • Mucous extravasation cyst of salivary gland
  • Mucous retention cyst of minor salivary gland
  • Mucous retention cyst of salivary gland
  • Parotid cyst
  • Plunging ranula
  • Ranula

Tabular List NotesGuidance

Coding notes and annotation back-references applicable to this code.

Inclusion Terms

  • Mucous extravasation cyst of salivary gland
  • Mucous retention cyst of salivary gland
  • Ranula

Index to Diseases and InjuriesGuidance

Alphabetical index entries that point to this code.

External Cause of Injuries IndexGuidance

References for this code in the External Cause of Injuries Index.

    • Cyst(colloid) (mucous) (simple) (retention)
      • parotid gland
    • Cyst(colloid) (mucous) (simple) (retention)
      • retention (ovary)
        • salivary gland
    • Cyst(colloid) (mucous) (simple) (retention)
      • salivary gland or duct (mucous extravasation or retention)
    • Cyst(colloid) (mucous) (simple) (retention)
      • sublingual gland
    • Cyst(colloid) (mucous) (simple) (retention)
      • submandibular gland
    • Cyst(colloid) (mucous) (simple) (retention)
      • submaxillary gland
    • Mucocele
      • salivary gland (any)
    • Ranula

Clinical ClassificationClinical

AHRQ’s CCSR groups this code into broader clinical categories.

CCSR DEN001
Any dental condition including traumatic injury
Default principal diagnosis: inpatient No · outpatient No
CCSR DIG003
Diseases of mouth; excluding dental
Default principal diagnosis: inpatient Yes · outpatient Yes
CCSR DEN002
Nontraumatic dental conditions
Default principal diagnosis: inpatient No · outpatient No

Clinical InformationClinical

  • Ranula

    a form of retention cyst of the floor of the mouth, usually due to obstruction of the ducts of the submaxillary or sublingual glands, presenting a slowly enlarging painless deep burrowing mucocele of one side of the mouth. it is also called sublingual cyst and sublingual ptyalocele.

Patient EducationClinical

Salivary Gland Disorders

Your salivary glands are in your mouth. You have three pairs of major salivary glands and hundreds of small (minor) glands. They make saliva (spit) and empty it into your mouth through openings called ducts. Saliva makes your food moist, which helps you chew and swallow. It helps you digest your food.

Read the full article at MedlinePlus

Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.

Convert K11.6 to ICD-9-CMHistory

The closest ICD-9-CM equivalents under the General Equivalence Mappings.

ICD-9-CM
527.6 Salivary gland mucocele
Exact Match The mapping is direct, with no qualifiers.

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2025No changes
FY 2026CurrentCurrent code set, no changesEffective October 1, 2025 through September 30, 2026.

Questions About K11.6Overview

Is K11.6 (Diseases of salivary glands) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report mucocele of salivary gland on HIPAA-covered claims from October 1, 2025 through September 30, 2026.

What MS-DRG does K11.6 group to?

When mucocele of salivary gland is the principal diagnosis on an inpatient stay, it groups to MS-DRG 154, 155, 156, with relative weights from 0.6911 to 1.5635 depending on complications. Higher weights mean higher Medicare reimbursement.

What is the ICD-9 equivalent of K11.6?

Under the General Equivalence Mappings, mucocele of salivary gland converts to ICD-9-CM 527.6 (salivary gland mucocele). The mapping is a direct match.

Footnotes

[1] Chronic - a chronic condition code indicates a condition lasting 12 months or longer and its effect on the patient based on one or both of the following criteria:

  • The condition results in the need for ongoing intervention with medical products,treatment, services, and special equipment
  • The condition places limitations on self-care, independent living, and social interactions.