ICD-10 Code G31.84 - Mild cognitive impairment of uncertain or unknown etiology

ICD-10-CM Diagnosis Code G31.84

Diagnosis Code: G31.84 (Raw: G3184)

Description: Mild cognitive impairment of uncertain or unknown etiology

Classification: International Classification of Diseases, Tenth Revision, Clinical Modification (ICD-10-CM)

Fiscal Year: 2026

CMS Section 111 Status: Valid for reporting (Excluded from No-Fault liability reporting).

Overview & Clinical Details

ICD-10-CM code G31.84 is designated for Mild cognitive impairment of uncertain or unknown etiology. 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.