ICD-10 Code X31.XXXA - Exposure to excessive natural cold, initial encounter

ICD-10-CM Diagnosis Code X31.XXXA

Diagnosis Code: X31.XXXA (Raw: X31XXXA)

Description: Exposure to excessive natural cold, initial encounter

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 X31.XXXA is designated for Exposure to excessive natural cold, initial encounter. 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.