ICD-10-CM O99.321: Drug use complicating pregnancy, first trimester

Parent Code (Less Specific):

About ICD-10-CM Code O99.321 (Drug use complicating pregnancy)

ICD-10-CM code O99.321 is a billable or specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. The 2025 edition of ICD-10-CM O99.321 became effective on October 1, 2024.

This page provides detailed information about O99.321 - Drug use complicating pregnancy, first trimester. It includes common terminology, coding guidelines such as "Includes," "Excludes1," and "Excludes2" notes, and information on required 7th characters. Utilizing this information correctly is essential for accurate medical coding and claims submission for conditions like Drug use complicating pregnancy related to first trimester.