2026 ICD-10-CM Diagnosis Code M27.49Other cysts of jaw
ICD-10-CM Codes›M00–M99›M26-M27›M27
- Billable — Valid for Submission
- Not Chronic
M27.49 is a billable ICD-10-CM diagnosis code for other cysts of jaw. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to MS-DRG 11 through 13, 157 through 159. Coders also document this condition as aneurysmal cyst of jaw. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Any dental condition including traumatic injury, Disorders of jaw, and Nontraumatic dental conditions.
Code Identity
Code Classification
Approximate SynonymsGuidance
Alternate terms and clinical phrases that map to this code.
- Aneurysmal cyst of jaw
- Mandibular cyst
- Median mandibular cyst
- Non-odontogenic developmental cyst of jaw
- Traumatic bone cyst of jaw
Tabular List NotesGuidance
Coding notes and annotation back-references applicable to this code.
Inclusion Terms
- Aneurysmal cyst of jaw
- Hemorrhagic cyst of jaw
- Traumatic cyst of jaw
These terms are the conditions for which that code is to be used. The terms may be synonyms of the code title, or, in the case of "other specified" codes, the terms are a list of the various conditions assigned to that code. The inclusion terms are not necessarily exhaustive. Additional terms found only in the Alphabetic Index may also be assigned to a code.
Index to Diseases and InjuriesGuidance
Alphabetical index entries that point to this code.
Cyst (colloid) (mucous) (simple) (retention)
aneurysmal M27.49
hemorrhagic M27.49
aneurysmal M27.49
hemorrhagic M27.49
traumatic M27.49
Disease, diseased See Also: Syndrome;
bone See Also: Disorder, bone;
jaw M27.49
fibrocystic M27.49
Clinical ClassificationClinical
AHRQ’s CCSR groups this code into broader clinical categories.
Patient EducationClinical
Jaw Injuries and Disorders
Your jaw is a set of bones that holds your teeth. It includes:
Read the full article at MedlinePlus
Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.
Convert M27.49 to ICD-9-CMHistory
The closest ICD-9-CM equivalents under the General Equivalence Mappings.
Code HistoryHistory
Questions About M27.49Overview
What is the ICD-10 code for other cysts of jaw?
The ICD-10-CM code for other cysts of jaw is M27.49 (sometimes written as M2749). It is billable on HIPAA-covered claims from October 1, 2025 through September 30, 2026.
Is M27.49 (Other and unspecified cysts of jaw) a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report other cysts of jaw on HIPAA-covered claims from October 1, 2025 through September 30, 2026.
What MS-DRG does M27.49 group to?
When other cysts of jaw is the principal diagnosis on an inpatient stay, it groups to MS-DRG 11, 12, 13, 157, 158, 159, with relative weights from 0.7085 to 5.4541 depending on complications. Higher weights mean higher Medicare reimbursement.
What is the ICD-9 equivalent of M27.49?
Under the General Equivalence Mappings, other cysts of jaw converts to ICD-9-CM 526.2 (cysts of jaws NEC). The mapping is approximate, so confirm the match fits the documentation.
