ICD-10 Code T40.606S - Underdosing of unspecified narcotics, sequela

ICD-10-CM Diagnosis Code T40.606S

Diagnosis Code: T40.606S (Raw: T40606S)

Description: Underdosing of unspecified narcotics, sequela

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 T40.606S is designated for Underdosing of unspecified narcotics, sequela. 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.