K03
ICD-10Non-billable categoryOther diseases of hard tissues of teeth
Official ICD-10-CM descriptor (FY2026)
Other diseases of hard tissues of teeth
K03 is a category heading, not a billable code. CMS does not accept it on a claim; report one of the more specific codes beneath it.
Excludes2
Not included here. The condition is not part of this code, but a patient may have both, and both codes may be reported together.
- bruxism (F45.8)
- dental caries (K02.-)
- teeth-grinding NOS (F45.8)
More specific codes under K03
- K03.0Excessive attrition of teeth
- K03.1Abrasion of teeth
- K03.2Erosion of teeth
- K03.3Pathological resorption of teeth
- K03.4Hypercementosis
- K03.5Ankylosis of teeth
- K03.6Deposits [accretions] on teeth
- K03.7Posteruptive color changes of dental hard tissues
- K03.8Other specified diseases of hard tissues of teethcategory
- K03.9Disease of hard tissues of teeth, unspecified
Where this code sits
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ICD-10-CM FY2026. Centers for Medicare & Medicaid Services (CMS) / National Center for Health Statistics (NCHS), “2026 ICD-10-CM Code Descriptions in Tabular Order” (icd10cm_order_2026.txt). Download the original file from cms.gov. Public domain (US Government work). Descriptors, billable flags and instructional notes on this page are reproduced from that file without modification. Krasyn adds no clinical guidance.