ICD-10-CM Z18.32 is the diagnosis code for Retained tooth. This code falls under the section "Retained foreign body fragments" within Chapter 21 — Factors influencing health status and contact with health services (Z00-Z99). It is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. Medical coders and healthcare providers use this code to document and classify diagnoses in electronic health records, insurance claims, and clinical databases.
Always refer to the official ICD-10-CM Tabular List for complete coding guidelines. Ensure documentation supports the specificity of the code selected. When in doubt, consult a certified medical coder or the latest CMS guidelines.
Understanding where Z18.32 sits in the ICD-10-CM classification helps ensure proper coding:
Yes, Z18.32 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
Z18.32 is the ICD-10-CM diagnosis code for "Retained tooth". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.
The parent code of Z18.32 is Z18.3 ("Retained organic fragments"). Z18.32 provides a more specific classification within this category.
Z18.32 is located in Section Z18 — "Retained foreign body fragments" within Chapter 21 of the ICD-10-CM Tabular List.
Use Z18.32 when the patients documented diagnosis matches "Retained tooth" and the clinical documentation supports this level of specificity. Always verify with the latest ICD-10-CM guidelines and payer requirements.
The ICD-10-CM code for Retained tooth is Z18.32.
Yes, Z18.32 can be used as a primary diagnosis code since it is billable and specific.
Z18.32 is in Chapter 21 of the ICD-10-CM Tabular List.
Yes, Z18.32 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.