2026 ICD-10-CM Diagnosis Code K08.9Disorder of teeth and supporting structures, unspecified
ICD-10-CM Codes›K00–K95›K00-K14›K08
- Billable — Valid for Submission
- Not Chronic
K08.9 is a billable ICD-10-CM diagnosis code for disorder of teeth and supporting structures, unspecified. 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. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Any dental condition including traumatic injury; Caries, periodontitis, and other preventable dental conditions; and Disorders of teeth and gingiva.
Code Identity
Code Classification
Approximate SynonymsGuidance
Alternate terms and clinical phrases that map to this code.
- Alveolar ridge abnormality
- Articulatory defect due to dental defect
- Chronic disease of teeth AND/OR supporting structures
- Disorder of teeth AND/OR supporting structures
- Disorder of tooth due to Sjögren's syndrome
- Hereditary disorder of tooth
- Impaired dentition
- Maxillary sinusitis due to dental disorder
- Non cavitated coronal lesion
- Oral cavity, dental and salivary gland disorder
- Physical health problem
- Problem of jaw
- Scar at apex of tooth
- Serious physical health problem
- Teeth requiring immediate treatment
- Tooth disorder
- Tooth problem
- Tooth symptoms
Index to Diseases and InjuriesGuidance
Alphabetical index entries that point to this code.
Abnormal, abnormality, abnormalities See Also: Anomaly;
alveolar ridge K08.9
Disease, diseased See Also: Syndrome;
alveoli, teeth K08.9
tooth, teeth K08.9
Disorder (of) See Also: Disease;
tooth K08.9
alveolar process K08.9
tooth, teeth K08.9
Clinical ClassificationClinical
AHRQ’s CCSR groups this code into broader clinical categories.
Patient EducationClinical
Tooth Disorders
Your teeth are made of a hard, bonelike material. There are four parts:
The full article covers:
- What are teeth?
- What are tooth disorders?
- What causes tooth disorders?
- What are the symptoms of tooth disorders?
- How are tooth disorders diagnosed?
- What are the treatments for tooth disorders?
- Can tooth disorders be prevented?
Read the full article at MedlinePlus
Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.
Convert K08.9 to ICD-9-CMHistory
The closest ICD-9-CM equivalents under the General Equivalence Mappings.
Code HistoryHistory
Questions About K08.9Overview
What is the ICD-10 code for disorder of teeth and supporting structures, unspecified?
The ICD-10-CM code for disorder of teeth and supporting structures, unspecified is K08.9 (sometimes written as K089). It is billable on HIPAA-covered claims from October 1, 2025 through September 30, 2026.
Is K08.9 (Other disorders of teeth and supporting structures) a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report disorder of teeth and supporting structures, unspecified on HIPAA-covered claims from October 1, 2025 through September 30, 2026.
What MS-DRG does K08.9 group to?
When disorder of teeth and supporting structures, unspecified 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 K08.9?
Under the General Equivalence Mappings, disorder of teeth and supporting structures, unspecified converts to ICD-9-CM 525.9 (dental disorder NOS). The mapping is a direct match.
