2026 ICD-10-CM Diagnosis Code K03.2Erosion of teeth
ICD-10-CM Codes›K00–K95›K00-K14›K03
- Billable — Valid for Submission
- Chronic Condition
K03.2 is a billable ICD-10-CM diagnosis code for erosion of teeth. 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.
- Biocorrosion of tooth
- Demineralization of tooth
- Erosion of teeth
- Erosion of teeth caused by medicine
- Erosion of teeth due to persistent vomiting
- Erosion of teeth secondary to deleterious oral practices
- Generalized erosion of tooth
- Idiopathic erosion of teeth
- Localized erosion of tooth
- Occupational erosion of teeth
- Perimylolysis
Tabular List NotesGuidance
Coding notes and annotation back-references applicable to this code.
Inclusion Terms
- Erosion of teeth due to diet
- Erosion of teeth due to drugs and medicaments
- Erosion of teeth due to persistent vomiting
- Erosion of teeth NOS
- Idiopathic erosion of teeth
- Occupational erosion of teeth
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.
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 K03.2 to ICD-9-CMHistory
The closest ICD-9-CM equivalents under the General Equivalence Mappings.
Code HistoryHistory
Questions About K03.2Overview
What is the ICD-10 code for erosion of teeth?
The ICD-10-CM code for erosion of teeth is K03.2 (sometimes written as K032). It is billable on HIPAA-covered claims from October 1, 2025 through September 30, 2026.
Is K03.2 (Other diseases of hard tissues of teeth) a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report erosion of teeth on HIPAA-covered claims from October 1, 2025 through September 30, 2026.
What MS-DRG does K03.2 group to?
When erosion of teeth 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 K03.2?
Under the General Equivalence Mappings, erosion of teeth converts to ICD-9-CM 521.30 (erosion NOS). The mapping is approximate, so confirm the match fits the documentation.
