Other diseases of hard tissues of teeth (K03) ICD-10-CM
The K03 code range covers other diseases of hard tissues of teeth with 13 ICD-10-CM diagnosis codes. 11 of them are billable and valid for claim submission in fiscal year 2027, and the category headers group them but cannot themselves be billed.
Type 2 Excludes
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.
Codes in the K03 Range 13 codes · 11 billable
- K03 Other diseases of hard tissues of teethNon-billable
- K03.0 Excessive attrition of teeth
- K03.1 Abrasion of teeth
- K03.2 Erosion of teeth
- K03.3 Pathological resorption of teeth
- K03.4 Hypercementosis
- K03.5 Ankylosis of teeth
- K03.6 Deposits [accretions] on teeth
- K03.7 Posteruptive color changes of dental hard tissues
- K03.8 Other specified diseases of hard tissues of teethNon-billable
- K03.81 Cracked tooth
- K03.89 Other specified diseases of hard tissues of teeth
- K03.9 Disease of hard tissues of teeth, unspecified
Clinical Terms in This Code Range
Definitions from the National Library of Medicine for conditions coded in the K03 range.
Dental Calculus
Abnormal concretion or calcified deposit that forms around the teeth or dental prostheses.
Hypercementosis
A regressive change of teeth characterized by excessive development of secondary cementum on the tooth surface. It may occur on any part of the root, but the apical two-thirds are most commonly affected. (Dorland, 27th ed)
Tooth Ankylosis
Solid fixation of a tooth resulting from fusion of the cementum and alveolar bone, with obliteration of the periodontal ligament. It is uncommon in the deciduous dentition and very rare in permanent teeth. (Jablonski's Dictionary of Dentistry, 1992)
Tooth Attrition
The wearing away of a tooth as a result of tooth-to-tooth contact, as in mastication, occurring only on the occlusal, incisal, and proximal surfaces. It is chiefly associated with aging. It is differentiated from TOOTH ABRASION (the pathologic wearing away of the tooth substance by friction, as brushing, bruxism, clenching, and other mechanical causes) and from TOOTH EROSION (the loss of substance caused by chemical action without bacterial action). (Jablonski, Dictionary of Dentistry, 1992, p86)
About the K03 Code Range
These conditions affect the hard tissues of teeth. The category includes tooth wear, deposits, color changes after teeth erupt, and cracked teeth.
The subdivisions distinguish excessive attrition, abrasion, and erosion in K03.0 through K03.2. Separate codes identify deposits on teeth and color changes after eruption. Within other specified diseases, K03.81 identifies a cracked tooth, while K03.89 identifies other specified diseases. K03.9 is for an unspecified disease of tooth hard tissues.
Questions About This Page
How many billable codes are in the K03 range?
Of the 13 codes in this range, 11 are billable and valid for claim submission from October 1, 2026 through September 30, 2027. Category header codes group them but cannot be reported on claims.
What does the K03 range classify?
The range classifies other diseases of hard tissues of teeth. Each code links to its own reference page with billing status, MS-DRG grouping, coding notes, and clinical information.
Related References
Source: CMS FY 2027 ICD-10-CM Tabular List and order file, effective October 1, 2026 through September 30, 2027.
