Non-Billable / Non-Specific Code
ICD-10-CM O13 is the diagnosis code for Gestational [pregnancy-induced] hypertension without significant proteinuria. This code falls under the section "Edema, proteinuria and hypertensive disorders in pregnancy, childbirth and the puerperium" 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 O13 sits in the ICD-10-CM classification helps ensure proper coding:
No, O13 is a non-billable/non-specific code. You should use a more specific sub-code for billing and reimbursement.
O13 is the ICD-10-CM diagnosis code for "Gestational [pregnancy-induced] hypertension without significant proteinuria". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.
O13 is located in Section O10-O16 — "Edema, proteinuria and hypertensive disorders in pregnancy, childbirth and the puerperium" within Chapter 15 of the ICD-10-CM Tabular List.
O13 has 6 sub-code(s) that provide more specific detail: O13.1, O13.2, O13.3, O13.4, O13.5 and more.
Use O13 when the patients documented diagnosis matches "Gestational [pregnancy-induced] hypertension without significant proteinuria" 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 Gestational [pregnancy-induced] hypertension without significant proteinuria is O13.
No, O13 is non-billable. Use a more specific sub-code for primary diagnosis billing.
O13 is in Chapter 15 of the ICD-10-CM Tabular List.
Yes, O13 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.