ICD-10-CM Diagnosis Code O40.9XX4
Diagnosis Code: O40.9XX4 (Raw: O409XX4)
Description: Polyhydramnios, unspecified trimester, fetus 4
Classification: International Classification of Diseases, Tenth Revision, Clinical Modification (ICD-10-CM)
Fiscal Year: 2026
CMS Section 111 Status: Valid for reporting.
Overview & Clinical Details
ICD-10-CM code O40.9XX4 is designated for Polyhydramnios, unspecified trimester, fetus 4. In medical documentation and insurance billing, this code is utilized to specify medical diagnosis for patient records, reimbursement workflows, and compliance under CMS Section 111 mandatory insurer reporting guidelines.