Non-Billable / Non-Specific Code
ICD-10-CM O09.21 is the diagnosis code for Supervision of pregnancy with history of pre-term labor. This code falls under the section "Supervision of high risk pregnancy" within Chapter 15 — Pregnancy, childbirth and the puerperium (O00-O9A). It is a non-billable/non-specific ICD-10-CM code that should not be used for reimbursement. A more specific sub-code is required for billing. 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 O09.21 sits in the ICD-10-CM classification helps ensure proper coding:
No, O09.21 is a non-billable/non-specific code. You should use a more specific sub-code for billing and reimbursement.
O09.21 is the ICD-10-CM diagnosis code for "Supervision of pregnancy with history of pre-term labor". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.
The parent code of O09.21 is O09.2 ("Supervision of pregnancy with other poor reproductive or obstetric history"). O09.21 provides a more specific classification within this category.
O09.21 is located in Section O09 — "Supervision of high risk pregnancy" within Chapter 15 of the ICD-10-CM Tabular List.
O09.21 has 4 sub-code(s) that provide more specific detail: O09.211, O09.212, O09.213, O09.219.
Use O09.21 when the patients documented diagnosis matches "Supervision of pregnancy with history of pre-term labor" 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 Supervision of pregnancy with history of pre-term labor is O09.21.
No, O09.21 is non-billable. Use a more specific sub-code for primary diagnosis billing.
O09.21 is in Chapter 15 of the ICD-10-CM Tabular List.
Yes, O09.21 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.