2026 ICD-10-CM Diagnosis Code J34.81Nasal mucositis (ulcerative)
ICD-10-CM Codes›J00–J99›J30-J39›J34
- Billable — Valid for Submission
- Not Chronic
J34.81 is a billable ICD-10-CM diagnosis code for nasal mucositis (ulcerative). 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 Other specified and unspecified upper respiratory disease.
Code Identity
Code Classification
Tabular List NotesGuidance
Coding notes and annotation back-references applicable to this code.
Code Also
- type of associated therapy, such as:
- antineoplastic and immunosuppressive drugs T45.1X
- radiological procedure and radiotherapy Y84.2
Type 2 Excludes
- gastrointestinal mucositis ulcerative K92.81
- mucositis ulcerative of vagina and vulva N76.81
- oral mucositis ulcerative K12.3
A "code also" note instructs that two codes may be required to fully describe a condition, but this note does not provide sequencing direction.
A type 2 excludes note represents "Not included here". An excludes2 note indicates that the condition excluded is not part of the condition represented by the code, but a patient may have both conditions at the same time. When an Excludes2 note appears under a code, it is acceptable to use both the code and the excluded code together, when appropriate.
Index to Diseases and InjuriesGuidance
Alphabetical index entries that point to this code.
- Mucositis (ulcerative) - K12.30
- nasal - J34.81
External Cause of Injuries IndexGuidance
References for this code in the External Cause of Injuries Index.
- Mucositis(ulcerative)
- nasal
Clinical ClassificationClinical
AHRQ’s CCSR groups this code into broader clinical categories.
Patient EducationClinical
Nose Injuries and Disorders
Your nose is important to your health. It filters the air you breathe, removing dust, germs, and irritants. It warms and moistens the air to keep your lungs and tubes that lead to them from drying out. Your nose also contains the nerve cells that help your sense of smell.
Read the full article at MedlinePlus
Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.
Convert J34.81 to ICD-9-CMHistory
The closest ICD-9-CM equivalents under the General Equivalence Mappings.
Code HistoryHistory
Questions About J34.81Overview
Is J34.81 (Other specified disorders of nose and nasal sinuses) a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report nasal mucositis (ulcerative) on HIPAA-covered claims from October 1, 2025 through September 30, 2026.
What MS-DRG does J34.81 group to?
When nasal mucositis (ulcerative) 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 J34.81?
Under the General Equivalence Mappings, nasal mucositis (ulcerative) converts to ICD-9-CM 478.11 (nasal mucositis (ulcer)). The mapping is a direct match.
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.
