Billable / Specific Code
ICD-10-CM O21.8 is the diagnosis code for Other vomiting complicating pregnancy. This code falls under the section "Other maternal disorders predominantly related to pregnancy" within Chapter 15 — Pregnancy, childbirth and the puerperium (O00-O9A). 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.
Understanding where O21.8 sits in the ICD-10-CM classification helps ensure proper coding:
Yes, O21.8 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
O21.8 is the ICD-10-CM diagnosis code for "Other vomiting complicating pregnancy". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.
The parent code of O21.8 is O21 ("Excessive vomiting in pregnancy"). O21.8 provides a more specific classification within this category.
O21.8 is located in Section O20-O29 — "Other maternal disorders predominantly related to pregnancy" within Chapter 15 of the ICD-10-CM Tabular List.
Use O21.8 when the patients documented diagnosis matches "Other vomiting complicating pregnancy" 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 Other vomiting complicating pregnancy is O21.8.
Yes, O21.8 can be used as a primary diagnosis code since it is billable and specific.
O21.8 is in Chapter 15 of the ICD-10-CM Tabular List.
Yes, O21.8 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.