ICD-10 Code K08.54 – Contour of existing restoration of tooth biologically incompatible with oral health (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code K08.54 – Contour of existing restoration of tooth biologically incompatible with oral health
What it is
This code identifies a dental restoration whose shape or contour is not compatible with oral health. It is used when the restoration itself is the problem, not a new cavity or fracture.
Clinical signs
Clinical features vary; refer to documentation. Common findings may include an overcontoured or poorly contoured restoration that traps plaque, irritates soft tissue, or interferes with cleaning.
When to use this code
Use this code when the record states that an existing filling, crown, or similar restoration has an unacceptable contour affecting oral health. It fits cases documented as biologically incompatible because of shape, emergence profile, or hygiene access. Code it only when the issue is with the restoration itself and not another defect.
Do not use for
Do not use this code for recurrent caries, broken restorations, or generalized poor oral hygiene. Check documentation if the note describes pain or inflammation without stating that the restoration contour is the cause.
Coding tip
Assign K08.54 only when the provider clearly links the existing restoration’s contour to the oral health problem.