ICD-10 Code K01.1 – Impacted teeth (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code K01.1 – Impacted teeth
What it is
K01.1 identifies teeth that have failed to fully erupt because they are blocked or trapped in the jaw or soft tissue. Use it for impacted permanent or other teeth when the record clearly documents impaction.
Clinical signs
Clinical features vary; refer to documentation. Commonly, an impacted tooth is noted on dental examination or imaging when eruption is incomplete and the tooth remains covered by bone, gum, or adjacent teeth.
When to use this code
Use K01.1 when the provider documents an impacted tooth and the visit is for evaluation, monitoring, or related dental assessment. It also fits when imaging confirms impaction and the note does not specify another more detailed diagnosis. If the chart names a specific impacted tooth, code it exactly as documented.
Do not use for
Do not use this code for a tooth that is merely unerupted without documentation of impaction. Check documentation if the problem is pain, infection, or another dental disorder rather than impaction itself.
Coding tip
Always code the documented tooth status, and verify whether the note says impacted, unerupted, or another condition.