2026 ICD-10-CM Diagnosis Code D10.30Benign neoplasm of unspecified part of mouth
ICD-10-CM Codes›C00–D49›D10-D36›D10
- Billable — Valid for Submission
- Not Chronic
D10.30 is a billable ICD-10-CM diagnosis code for benign neoplasm of unspecified part of mouth. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to MS-DRG 157 through 159. Coders also document this condition as benign neoplasm of lip, oral cavity and pharynx. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Benign neoplasms.
Code Identity
Code Classification
Approximate SynonymsGuidance
Alternate terms and clinical phrases that map to this code.
- Benign neoplasm of lip, oral cavity and pharynx
- Benign neoplasm of mouth region
- Benign neoplasm of oral cavity
- Fibroepithelial polyp of oral mucous membrane
- Fibroma of mouth
- Mouth polyp
- Nevus of oral mucosa
- Oral papillomatosis
- Squamous cell papilloma of oral cavity
Index to Diseases and InjuriesGuidance
Alphabetical index entries that point to this code.
- mouth (mucosa) - D10.30
- oral mucosa - D10.30
External Cause of Injuries IndexGuidance
References for this code in the External Cause of Injuries Index.
- Nevus
- mouth (mucosa)
- Nevus
- oral mucosa
Clinical ClassificationClinical
AHRQ’s CCSR groups this code into broader clinical categories.
Table of NeoplasmsClinical
Anatomical sites in the Table of Neoplasms that reference this code family.
| Site | Malig. Primary | Malig. Secondary | Ca in situ | Benign | Uncertain | Unspec. |
|---|---|---|---|---|---|---|
| cavity | C06.9 | C79.89 | D00.00 | D10.30 | D37.09 | D49.0 |
| cavity › buccal | C06.9 | C79.89 | D00.00 | D10.30 | D37.09 | D49.0 |
| cavity › oral | C06.9 | C79.89 | D00.00 | D10.30 | D37.09 | D49.0 |
| mouth | C06.9 | C79.89 | D00.00 | D10.30 | D37.09 | D49.0 |
| oral (cavity) | C06.9 | C79.89 | D00.00 | D10.30 | D37.09 | D49.0 |
| oral (cavity) › ill-defined | C14.8 | C79.89 | D00.00 | D10.30 | D37.09 | D49.0 |
Patient EducationClinical
Benign Tumors
Tumors are abnormal growths in your body. They can be either benign or malignant. Benign tumors aren't cancer. Malignant ones are. Benign tumors grow only in one place. They cannot spread or invade other parts of your body. Even so, they can be dangerous if they press on vital organs, such as your brain.
Read the full article at MedlinePlus
Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.
Convert D10.30 to ICD-9-CMHistory
The closest ICD-9-CM equivalents under the General Equivalence Mappings.
Code HistoryHistory
Questions About D10.30Overview
Is D10.30 (Benign neoplasm of other and unspecified parts of mouth) a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report benign neoplasm of unspecified part of mouth on HIPAA-covered claims from October 1, 2025 through September 30, 2026.
What MS-DRG does D10.30 group to?
When benign neoplasm of unspecified part of mouth is the principal diagnosis on an inpatient stay, it groups to MS-DRG 157, 158, 159, with relative weights from 0.7085 to 1.7168 depending on complications. Higher weights mean higher Medicare reimbursement.
What is the ICD-9 equivalent of D10.30?
Under the General Equivalence Mappings, benign neoplasm of unspecified part of mouth converts to ICD-9-CM 210.4 (benign neo mouth NEC/NOS). The mapping is approximate, so confirm the match fits the documentation.
Footnotes
[1] Not chronic - A diagnosis code that does not fit the criteria for chronic condition (duration, ongoing medical treatment, and limitations) is considered not chronic. Some codes designated as not chronic are acute conditions. Other diagnosis codes that indicate a possible chronic condition, but for which the duration of the illness is not specified in the code description (i.e., we do not know the condition has lasted 12 months or longer) also are considered not chronic.
