ICD-10-CM Diagnosis Code I81
Diagnosis Code: I81 (Raw: I81)
Description: Portal vein thrombosis
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 I81 is designated for Portal vein thrombosis. 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.