ICD-10 Code C86.6 - Primary cutaneous CD30-positive T-cell proliferations

ICD-10-CM Diagnosis Code C86.6

Diagnosis Code: C86.6 (Raw: C866)

Description: Primary cutaneous CD30-positive T-cell proliferations

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 C86.6 is designated for Primary cutaneous CD30-positive T-cell proliferations. 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.